Drug & supplement interaction

Fish Oil + Linaclotide

Linaclotide brand name: Linzess.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 20, 2026

The bottom line No known interaction

We found no known interaction between Fish Oil and Linaclotide in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the label for Linaclotide states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

Know someone taking this? Share

Facebook Post Reddit Email

On this page

Interaction report

Fish Oil and Linaclotide

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Linaclotide and Fish Oil in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Fish Oil safety at a glance

Fish Oil overall Generally safe Fish oil is generally well tolerated for most adults at typical supplement doses.

Pregnancy Likely Safe When used orally and appropriately. Intake of fish oil during pregnancy does not appear to adversely affect the fetus or nursing infant. One large clinical tria... Read the full pregnancy detail

Breastfeeding Likely Safe When used orally and appropriately. Intake of fish oil during pregnancy does not appear to adversely affect the fetus or nursing infant. One large clinical tria... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Linaclotide and Fish Oil? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Linaclotide

Interactions in our licensed database are recorded against drug classes, not just single drug names. Linaclotide is filed under a single classification — oral drugs. Fish Oil has documented interactions with 9 drug classes — the most serious being antihypertensive drugs (moderate), contraceptive drugs (moderate) and cyclosporine (neoral, sandimmune) (moderate) — and none of Linaclotide’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Fish Oil Does Interact With Other Medications

Fish Oil has 207 moderate, 120 minor known drug interactions in our database — Linaclotide isn’t one of them. If you take anything else, check it against the full list below.

Moderate 207 Minor 120 No known interaction 2,503 (incl. Linaclotide)

Taking anything else?

Check Another of Your Medications Against Fish Oil

Covers the 2,830 medications we’ve checked against Fish Oil. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Fish Oil and Linaclotide May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. One of them is worth acting on rather than waiting out — marked below.

A higher chance of infection Worth acting on Additional detail
Fish Oil
“A case of anaphylaxis following ingestion of a fish oil capsule has been reported for a female patient with a history of allergy to crab. The patient was treated successfully with epinephrine, but had several recurrences of stridor over the next 2 days.

There is also some evidence that fish oil in doses greater than 3 grams per day might adversely affect immune function.”

Fish Oil · Natural Medicines adverse-effect record, reported in allergic rhinitis (hay fever).
4 sources cited

89378. Kmet A, Unger J, Jahangir K, Kolber MR. Fish-oil capsule ingestion: a case of recurrent anaphylaxis. Can Fam Physician 2012;58(7):e379-81.

1313. FDA. Center for Food Safety and Applied Nutrition. Letter regarding dietary supplement health claim for omega-3 fatty acids and coronary heart disease. Available at: http://www.fda.gov/ohrms/dockets/dockets/95s0316/95s-0316-Rpt0272-38-Appendix-D-Reference

7383. Kelley DS, Rudolph IL. Effect of individual fatty acids of omega-6 and omega-3 type on human immune status and role of eicosanoids. Nutrition 2000;16:143-5.

7384. Meydani SN, Dinarello CA. Influence of dietary fatty acids on cytokine production and its clinical implications. Nutr Clin Pract 1993;8:65-72. PubMed
“Orally, fish oil has been reported to cause nasopharyngitis and upper respiratory tract infections in 3.3% of patients in one clinical trial. Exacerbation of asthma and apnea have been reported for patients using fish oil.”

Fish Oil · Natural Medicines adverse-effect record, reported in asthma.
5 sources cited

65798. Davidson, M. H., Stein, E. A., Bays, H. E., Maki, K. C., Doyle, R. T., Shalwitz, R. A., Ballantyne, C. M., and Ginsberg, H. N. Efficacy and tolerability of adding prescription omega-3 fatty acids 4 g/d to simvastatin 40 mg/d in hypertriglyceridemic patie

1040. Hawthorne AB, Daneshmend TK, Hawkey CJ, et al. Treatment of ulcerative colitis with fish oil supplementation: a prospective 12 month randomised controlled trial. Gut 1992;33:922-8. PubMed

66061. Turner, D., Shah, P. S., Steinhart, A. H., Zlotkin, S., and Griffiths, A. M. Maintenance of remission in inflammatory bowel disease using omega-3 fatty acids (fish oil): a systematic review and meta-analyses. Inflamm.Bowel.Dis. 2011;17(1):336-345. PubMed

66119. Oliver, C. and Jahnke, N. Omega-3 fatty acids for cystic fibrosis. Cochrane.Database.Syst.Rev. 2011;(8):CD002201. PubMed

66354. Lawrence, R. and Sorrell, T. Eicosapentaenoic acid in cystic fibrosis: evidence of a pathogenetic role for leukotriene B4. Lancet 8-21-1993;342(8869):465-469. PubMed
Linaclotide

Listed in the ADVERSE REACTIONS section of the FDA label for Linaclotide. Read the label on DailyMed ›
Heartburn / Diarrhea reported in 17.7% of FDA reports for Linaclotide Additional detail
Fish Oil
“Orally, most adverse effects of omega-3 fatty acids are gastrointestinal in nature. Gastrointestinal upset is common with the use of fish oil supplements, occurring in up to 5% of patients in clinical trials, with nausea in up to 1.5% of patients. Diarrhea and loose stools may also occur, with potentially severe diarrhea at very high doses.”

Fish Oil · Natural Medicines adverse-effect record, reported in anorexia.
6 sources cited

12915. Wang C, Chung M, Lichtenstein A, et al. Effects of omega-3 fatty acids on cardiovascular disease. Evid Rep Technol Assess (Summ) 2004 Mar;(94):1-8.

65599. Maclean, C. H., Mojica, W. A., Morton, S. C., Pencharz, J., Hasenfeld, Garland R., Tu, W., Newberry, S. J., Jungvig, L. K., Grossman, J., Khanna, P., Rhodes, S., and Shekelle, P. Effects of omega-3 fatty acids on lipids and glycemic control in type II di

65728. Reisman, J., Schachter, H. M., Dales, R. E., Tran, K., Kourad, K., Barnes, D., Sampson, M., Morrison, A., Gaboury, I., and Blackman, J. Treating asthma with omega-3 fatty acids: where is the evidence? A systematic review. BMC.Complement Altern Med 2006;6 PubMed

65770. Lim, A. K., Manley, K. J., Roberts, M. A., and Fraenkel, M. B. Fish oil for kidney transplant recipients. Cochrane Database Syst Rev 2007;(2):CD005282. DOI

65780. Freund-Levi, Y., Basun, H., Cederholm, T., Faxen-Irving, G., Garlind, A., Grut, M., Vedin, I., Palmblad, J., Wahlund, L. O., and Eriksdotter-Jonhagen, M. Omega-3 supplementation in mild to moderate Alzheimer's disease: effects on neuropsychiatric symptom

65904. Turnbull, T., Cullen-Drill, M., and Smaldone, A. Efficacy of omega-3 fatty acid supplementation on improvement of bipolar symptoms: a systematic review. Arch Psychiatr.Nurs 2008;22(5):305-311. PubMed
Linaclotide

Listed in the ADVERSE REACTIONS section of the FDA label for Linaclotide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Bloating or gas / Constipation / Vomiting reported in 7.5% of FDA reports for Linaclotide Additional detail

Fish Oil

Recorded for Fish Oil in the same Natural Medicines adverse-effect record shown under Heartburn / Diarrhea above.

Linaclotide

Listed in the ADVERSE REACTIONS section of the FDA label for Linaclotide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Stomach pain reported in 4.0% of FDA reports for Linaclotide Additional detail

Fish Oil

Recorded for Fish Oil in the same Natural Medicines adverse-effect record shown under Heartburn / Diarrhea above.

Linaclotide

Listed in the ADVERSE REACTIONS section of the FDA label for Linaclotide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Headache reported in 3.9% of FDA reports for Linaclotide Additional detail
Fish Oil
“Orally, fish oil may cause headache, dizziness, and inability to sleep. Also, restlessness and formication have been reported in less than 1% of studied cases of patients taking fish oil.”

Fish Oil · Natural Medicines adverse-effect record, reported in cluster headache.
6 sources cited

65599. Maclean, C. H., Mojica, W. A., Morton, S. C., Pencharz, J., Hasenfeld, Garland R., Tu, W., Newberry, S. J., Jungvig, L. K., Grossman, J., Khanna, P., Rhodes, S., and Shekelle, P. Effects of omega-3 fatty acids on lipids and glycemic control in type II di

65648. Schachter, H. M., Kourad, K., Merali, Z., Lumb, A., Tran, K., and Miguelez, M. Effects of omega-3 fatty acids on mental health. Evid.Rep.Technol.Assess.(Summ.) 2005;(116):1-11.

89359. Oliveira JM, Rondó PH, Yudkin JS, Souza JM, Pereira TN, Catalani AW, Picone CM, Segurado AA. Effects of fish oil on lipid profile and other metabolic outcomes in HIV-infected patients on antiretroviral therapy: a randomized placebo-controlled trial. Int J PubMed

103491. Nicholls SJ, Lincoff AM, Garcia M, et al. Effect of high-dose omega-3 fatty acids vs corn oil on major adverse cardiovascular events in patients at high cardiovascular risk: The STRENGTH randomized clinical trial. JAMA. 2020e2022258.

104551. Suradom C, Suttajit S, Oon-Arom A, Maneeton B, Srisurapanont M. Omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementation for prevention and treatment of perinatal depression: a systematic review and meta-analysis of randomized-controlled trials. Nord PubMed

66498. Kuenzel U and Bertsch S. Clinical experiences with a standardized commercial fish oil product containing 33.5% omega-3 fatty acids - field trial with 3958 hyperlipemic patients in general practitioner practice. In: Chandra RK. Health Effects of Fish and F
Linaclotide

Listed in the ADVERSE REACTIONS section of the FDA label for Linaclotide, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›

Reported for Fish Oil but not commonly for Linaclotide: stomach upset, a heart attack, an irregular heartbeat and a change in taste.

Effects for Linaclotide come from the ADVERSE REACTIONS section of its FDA label; effects for Fish Oil come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 26,525 voluntary FDA FAERS reports for Linaclotide that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Fish Oil in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When used orally and appropriately. Intake of fish oil during pregnancy does not appear to adversely affect the fetus or nursing infant. One large clinical trial shows that intake of fish oil from the 24th week of gestation increases the odds of the child having overweight and having metabolic syndrome measurements at age 10 when compared with placebo. More research is needed to confirm these findings. The adequate intake level of omega-3 fatty acids during pregnancy is 1.4 grams daily; the adequate intake level during lactation is 1.3 grams daily. If possible, people who are trying to become pregnant, as well as those who are pregnant or lactating, should avoid swordfish, king mackerel, and tilefish (also called golden bass or golden snapper), as these may contain high levels of methylmercury. Pregnant individuals should also limit consumption of other fatty fish to 12 ounces, or about 3-4 servings, per week.

Pregnancy And Lactation Possibly Unsafe

When fish oil from dietary sources are consumed in large amounts. Fatty fish can contain significant amounts of toxins such as mercury, polychlorinated biphenyls (PCBs), dioxin, and dioxin-related compounds. If possible, people who are trying to become pregnant, as well as those who are pregnant or lactating, should avoid swordfish, king mackerel, and tilefish (also called golden bass or golden snapper), as these may contain high levels of methylmercury. Pregnant individuals should also limit consumption of other fatty fish to 12 ounces, or about 3-4 servings, per week.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some Linaclotide Products Have a Food Rule — Fish Oil Should Not Break It

At least one FDA label for a product containing Linaclotide says to take it on an empty stomach. Most supplements — Fish Oil included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Linaclotide on its own and move Fish Oil to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Linaclotide products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

Preparation and Administration Instructions • Take LINZESS on an empty stomach, at least 30 minutes prior to a meal at approximately the same time each day.

From the Dosage and Administration section of the FDA label we read for Linaclotide — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

From our Q&A

Questions About Fish Oil or Linaclotide

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Fish Oil or Linaclotide, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Linaclotide

This page covers Fish Oil only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Linaclotide page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Linaclotide page

“Linaclotide (Linzess) treats IBS with constipation by acting inside the intestine itself, so the capsule's contents have to reach the gut unbound to do their job. That is exactly what the 17 supplements on this page can interfere with, and I would read the list with genuine care.”

Reviewed by 2 · Jul 18, 2026

Open the Linaclotide interaction page

One more smart check

Taking Fish Oil as Part of a Dietary Supplement Product? Check It for Interactions

We hold 4,777 real supplement products containing Fish Oil, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Fish Oil. Even though Fish Oil itself has no known interaction with Linaclotide, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Fish Oil and Linaclotide Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Fish Oil

Top 5%

#64 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Linaclotide

Top half

#1,349 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?

Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Fish Oil reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Fish Oil and Linaclotide records this page draws on were last updated July 10, 2026.
What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Fish Oil

What is Fish Oil?

High triglycerides
Heart health
Joint pain and inflammation
Brain and eye health
Dry eyes

Fish oil provides omega-3 fatty acids (EPA and DHA) that are best known for lowering high triglyceride levels. The evidence for other heart and health benefits is mixed, and it is generally well tolerated. Talk with your pharmacist or doctor before starting it, especially if you take blood thinners or have a fish allergy.

Oil from fatty fish (such as mackerel, salmon, sardines, and anchovies) · Softgel capsules, liquid, gummies, and fortified foods

An interaction check asks whether these two react with each other — it does not ask whether Fish Oil is a good idea for someone in your situation. Here is what our Fish Oil record says about it on its own.

Fish Oil: dosing

There is no single standard dose of fish oil for everyone, and the right amount depends on why it is being used and the EPA/DHA content of the product. Higher, prescription-strength doses used for very high triglycerides should only be used under a doctor's supervision.

From our Fish Oil monograph — the full record covers uses, side effects and every documented interaction.

Read the full Fish Oil monograph & all interactions

Medication

About Linaclotide

What Is Linaclotide Used For?

Brand name: Linzess

Linzess (linaclotide) is used to treat irritable bowel syndrome with constipation (IBS-C) in adults and children 7 years of age and older, and chronic idiopathic constipation (CIC) in adults. It is also approved for functional constipation (FC) in children 2 years of age and older.

IBS-C causes belly pain along with constipation. CIC and FC are ongoing constipation without a clear underlying cause. Linzess addresses both the constipation and, in IBS-C, the associated abdominal discomfort.

Most-Reported Side Effects for Linaclotide

From FAERS, the FDA’s public side-effect reporting system (26,525 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 4,703 reports

Constipation 1,998 reports

Nausea 1,476 reports

Fatigue 1,171 reports

Abdominal distension 1,170 reports

See full Linaclotide drug information

Keep checking

Other Drugs & Fish Oil

Browse every other medication we’ve checked against Fish Oil — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major

207Moderate

120Minor

2,502No known interaction

207 Moderate 120 Minor 2,502 No interaction

Moderate

207 interactions

Showing 60 of 207 moderate interactions — see all 207 on the Fish Oil page.

Minor

120 interactions

Showing 60 of 120 minor interactions — see all 120 on the Fish Oil page.

No interaction 2,502 drugs checked — show the list

We also checked Fish Oil against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,502 medications checked with no known interaction — see the full Fish Oil list.

See the full Fish Oil interactions page

See every supplement checked against Linaclotide, ranked by severity

Evidence & sources

Fish Oil References

The 157 references that drive our Fish Oil monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

Prisco D, Paniccia R, Bandinelli B, et al. Effect of medium-term supplementation with a moderate dose of n-3 polyunsaturated fatty acids on blood pressure in mild hypertensive patients. Thromb Res 1998;1:105-12.
Allard JP, Kurian R, Aghdassi E, Muggli R, et al. Lipid peroxidation during n-3 fatty acid and vitamin E supplementation in humans. Lipids 1997;32:535-41.. PubMed
Toft I, Bonaa KH, Ingebretsen OC, et al. Effects of n-3 polyunsaturated fatty acids on glucose homeostasis and blood pressure in essential hypertension. A randomized, controlled trial. Ann Intern Med 1995;123:911-8.
Onwude JL, Lilford RJ, Hjartardottir H, et al. A randomised double blind placebo controlled trial of fish oil in high risk pregnancy. Br J Obstet Gynaecol 1995;102:95-100. PubMed
Bulstra-Ramakers MT, Huisjes HJ, Visser GH. The effects of 3g eicosapentaenoic acid daily on recurrence of intrauterine growth retardation and pregnancy induced hypertension. Br J Obstet Gynaecol 1995;102:123-6. PubMed
Sacks FM, Hebert P, Appel LJ, et al. Short report: the effect of fish oil on blood pressure and high-density lipoprotein-cholesterol levels in phase I of the trials of hypertension prevention. J Hypertens 1994;12:209-13.
Vandongen R, Mori TA, Burke V, et al. Effects on blood pressure of omega 3 fats in subjects at increased risk of cardiovascular disease. Hypertension 1993;22:371-9. PubMed
Hawthorne AB, Daneshmend TK, Hawkey CJ, et al. Treatment of ulcerative colitis with fish oil supplementation: a prospective 12 month randomised controlled trial. Gut 1992;33:922-8. PubMed
D'Almeida A, Carter JP, Anatol A, Prost C. Effects of a combination of evening primrose oil (gamma linolenic acid) and fish oil (eicosapentaenoic + docahexaenoic acid) versus magnesium, and versus placebo in preventing pre-eclampsia. Women Health 1992;19 PubMed
FDA. Center for Food Safety and Applied Nutrition. Letter regarding dietary supplement health claim for omega-3 fatty acids and coronary heart disease. Available at: http://www.fda.gov/ohrms/dockets/dockets/95s0316/95s-0316-Rpt0272-38-Appendix-D-Reference
Montori VM, Farmer A, Wollan PC, Dinneen SF. Fish oil supplementation in type 2 diabetes: a quantitative systemic review (abstract). Diabetes Care 2000;23:1407-15.
Anon. Dietary supplementation with n-3 polyunsaturated fatty acids and vitamin E after myocardial infarction: results of the GISSI-Prevenzione trial. Gruppo Italiano per lo Studio della Soprawivenza nell'Infarto miocardico. Lancet 1999;354:447-55. DOI
Adler A, Holub BJ. Effect of garlic and fish-oil supplementation on serum lipid and lipoprotein concentrations in hypercholesterolemic men. Am J Clin Nutr 1997;65:445-50. PubMed
Higdon JV, Liu J, Du S, et al. Supplementation of postmenopausal women with fish oil rich in eicosapentaenoic acid and docosahexaenoic acid is not associated with greater in vivo lipid peroxidation compared with oils rich in oleate and linoleate as asses
Kastrup EK. Drug Facts and Comparisons. 1998 ed. St. Louis, MO: Facts and Comparisons, 1998.
Belluzzi A, Brignola C, Campieri M, et al. Effect of an enteric-coated fish-oil preparation on relapses in Crohn's disease. N Engl J Med 1996;334:1557-60. PubMed
Belluzzi A, Brignola C, Campieri M, et al. Effects of new fish oil derivative on fatty acid phospholipid-membrane pattern in a group of Crohn's disease patients. Dig Dis Sci 1994;39:2589-94. PubMed
Mahan LK, Escott-Stump S. Krause's Food, Nutrition, and Diet Therapy. 9th edition. W.B. Saunders Co., Philadelphia, PA, 1996.
Yetiv JZ. Clinical applications of fish oils. JAMA 1988;260:665-70. DOI
de Deckere EAM, Korver O, Verschuren PM, Katan MB. Health aspects of fish and n-3 polyunsaturated fatty acids from plant and marine origin. Eur J Clin Nutr 1998;52:749-53. PubMed
Sorensen NS, Marckmann P, Hoy CE, et al. Effect of fish-oil-enriched margarine on plasma lipids, low-density-lipoprotein particle composition, size, and susceptibility to oxidation. Am J Clin Nutr 1998;68:235-41. PubMed
Kelley DS, Rudolph IL. Effect of individual fatty acids of omega-6 and omega-3 type on human immune status and role of eicosanoids. Nutrition 2000;16:143-5.
Meydani SN, Dinarello CA. Influence of dietary fatty acids on cytokine production and its clinical implications. Nutr Clin Pract 1993;8:65-72. PubMed
Caicoya M. Fish consumption and stroke: a community case-control study in Asturias, Spain. Neuroepidemiology 2002;21:107-14. PubMed
Leaf A. On the reanalysis of the GISSI-Prevenzione. Circulation 2002;105:1874-5. PubMed
Dewailly E, Blanchet C, Lemieux S, et al. n-3 Fatty acids and cardiovascular disease risk factors among the Inuit of Nunavik. Am J Clin Nutr 2001;74:464-73. PubMed
Connor WE. n-3 Fatty acids from fish and fish oil: panacea or nostrum? Am J Clin Nutr 2001;74;415-6. PubMed
Maresta A, Balduccelli M, Varani E, et al. Prevention of postcoronary angioplasty restenosis by omega-3 fatty acids: main results of the Esapent for Prevention of Restenosis Italian Study (ESPRIT). Am Heart J 143:E5. PubMed
Deutch B, Jorgensen EB, Hansen JC. n-3 PUFA from fish or seal oil reduce atherogenic risk indicators in Danish women. Nutr Res 2000;20:1065-77. DOI
Higgins S, McCarthy SN, Corridan BM, et al. Measurement of free cholesterol, cholesteryl esters and cholesteryl linoleate hydroperoxide in copper-oxidised low density lipoprotein in healthy volunteers supplemented with a low dose of n-3 polyunsaturated f
Calder PC. N-3 polyunsaturated fatty acids, inflammation and immunity: pouring oil on troubled waters or another fishy tale? Nutr Res 2001;21:309-41. DOI
Lacaille B, Julien P, Deshaies Y, et al. Responses of plasma lipoproteins and sex hormones to the consumption of lean fish incorporated in a prudent-type diet in normolipidemic men. J Am Coll Nutr 2000;19:745-53. PubMed
Pedersen HS, Mulvad G, Seidelin KN, et al. N-3 fatty acids as a risk factor for haemorrhagic stroke. Lancet 1999;353:812-3. PubMed
Higdon JV, Du SH, Lee YS, et al. Supplementation of postmenopausal women with fish oil does not increase overall oxidation of LDL ex vivo compared to dietary oils rich in oleate and linoleate. J Lipid Res 2001;42:407-18. DOI
Olsen SF, Sorensen JD, Secher NJ, et al. Randomised controlled trial of effect of fish-oil supplementation on pregnancy duration. Lancet 1992;339:1003-7. PubMed
Ito Y, Suzuki K, Imai H, et al. Effects of polyunsaturated fatty acids on atrophic gastritis in a Japanese population. Cancer Lett 2001;163:171-8. PubMed
Bender NK, Kraynak MA, Chiquette E, et al. Effects of marine fish oils on the anticoagulation status of patients receiving chronic warfarin therapy. J Thromb Thrombolysis 1998;5:257-61.. PubMed
Suzukawa M, Abbey M, Howe PR, Nestel PJ. Effects of fish oil fatty acids on low density lipoprotein size, oxidizability, and uptake by macrophages. J Lipid Res 1995;36:473-84.. DOI
Su KP, Huang SY, Chiu CC, Shen WW. Omega-3 fatty acids in major depressive disorder. A preliminary double-blind, placebo-controlled trial. Eur Neuropsychopharmacol 2003;13:267-71..
Wang C, Chung M, Lichtenstein A, et al. Effects of omega-3 fatty acids on cardiovascular disease. Evid Rep Technol Assess (Summ) 2004 Mar;(94):1-8.
US Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Seafood. Mercury levels in seafood species. Available at: http://www.cfsan.fda.gov/~frf/sea-mehg.html.
US Environmental Protection Agency. Fish Advisories web page. Available at: http://www.epa.gov/waterscience/fish.
Dunstan JA, Roper J, Mitoulas L, et al. The effect of supplementation with fish oil during pregnancy on breast milk immunoglobulin A, soluble CD14, cytokine levels and fatty acid composition. Clin Exp Allergy 2004;34:1237-42. PubMed
Lauritzen L, Jorgensen MH, Mikkelsen TB, et al. Maternal fish oil supplementation in lactation: effect on visual acuity and n-3 fatty acid content of infant erythrocytes. Lipids 2004;39:195-206. PubMed
Dunstan JA, Mori TA, Barden A et al. Fish oil supplementation in pregnancy modifies neonatal allergen-specific immune responses and clinical outcomes in infants at high risk of atopy: a randomized, controlled trial. J Allergy Clin Immunol 2003;112:1178-84 PubMed
Olsen SF, Secher NJ, Tabor A, et al. Randomised clinical trials of fish oil supplementation in high risk pregnancies. Fish Oil Trials In Pregnancy (FOTIP) Team. BJOG 2000;107:382-95. PubMed
Stern AH. A review of the studies of the cardiovascular health effects of methylmercury with consideration of their suitability for risk assessment. Environ Res 2005;98:133-42. PubMed
Harris WS. Fish oil supplementation: evidence for health benefits. Cleve Clin J Med 2004;71:208-10, 212, 215-8 passim. PubMed
Raitt MH, Connor WE, Morris C, et al. Fish oil supplementation and risk of ventricular tachycardia and ventricular fibrillation in patients with implantable defibrillators: a randomized controlled trial. JAMA 2005;293:2884-91. DOI
Svaneborg N, Kristensen SD, Hansen LM, et al. The acute and short-time effect of supplementation with the combination of n-3 fatty acids and acetylsalicylic acid on platelet function and plasma lipids. Thromb Res 2002;105:311-6. PubMed
Lauritzen L, Hoppe C, Straarup EM, Michaelsen KF. Maternal fish oil supplementation in lactation and growth during the first 2.5 years of life. Pediatr Res 2005;58:235-42. PubMed
Dunstan JA, Mori TA, Barden A, et al. Effects of n-3 polyunsaturated fatty acid supplementation in pregnancy on maternal and fetal erythrocyte fatty acid composition. Eur J Clin Nutr 2004;58:429-37. PubMed
Dunstan JA, Simmer K, Dixon G, Prescott SL. Cognitive assessment at 2 1/2 years following fish oil supplementation in pregnancy: a randomized controlled trial. Arch Dis Child Fetal Neonatal Ed 2008;93(1):F45-50.
McKenney JM, Sica D. Prescription omega-3 fatty acids for the treatment of hypertriglyceridemia. Am J Health-Syst Pharm 2007;64:595-605. PubMed
Malinowski JM, Metka K. Elevation of low-density lipoprotein cholesterol concentration with over-the-counter fish oil supplementation. Ann Pharmacother 2007;41:1296-300. PubMed
Gissi-HF Investigators; Tavazzi L, Maggioni AP, Marchioli R, et al. Effect of n-3 polyunsaturated fatty acids in patients with chronic heart failure (the GISSI-HF trial): a randomised, double-blind, placebo-controlled trial. Lancet 2008;372:1223-30. PubMed
Lucas M, Asselin G, Merette C, et al. Effects of ethyl-eicosapentaenoic acid omega-3 fatty acid supplementation on hot flashes and quality of life among middle-aged women: a double-blind, placebo-controlled, randomized clinical trial. Menopause 2009;16:3 PubMed
Holland S, Silberstein SD, Freitag F, et al. Evidence-based guideline update: NSAIDs and other complementary treatments for episodic migraine prevention in adults: Report of the Quality Standards Subcommittee of the American Academy of Neurology and the A
Kwak SM, Myung SK, Lee YJ, Seo HG. Efficacy of omega-3 fatty acid supplements (eicosapentaenoic acid and docosahexaenoic acid) in the secondary prevention of cardiovascular disease: a meta-analysis of randomized, double-blind, placebo-controlled trials. A PubMed
Armaganijan L, Lopes RD, Healey JS, et al. Do omega-3 fatty acids prevent atrial fibrillation after open heart surgery? A meta-analysis of randomized controlled trials. Clinics (Sao Paulo) 2011;66:1923-8.
Jalili M, Dehpour AR. Extremely prolonged INR associated with warfarin in combination with both trazodone and omega-3 fatty acids. Arch Med Res. 2007 Nov;38(8):901-4. PubMed
von Houwelingen R, Nordøy A, van der Beek E, et al. Effect of a moderate fish intake on blood pressure, bleeding time, hematology, and clinical chemistry in healthy males. Am J Clin Nutr. 1987 Sep;46(3):424-36. PubMed
Goodnight SH Jr, Harris WS, Connor WE. The effects of dietary omega 3 fatty acids on platelet composition and function in man: a prospective, controlled study. Blood. 1981 Nov;58(5):880-5. DOI
Gajos G1, Rostoff P, Undas A, et al. Effects of polyunsaturated omega-3 fatty acids on responsiveness to dual antiplatelet therapy in patients undergoing percutaneous coronary intervention: the OMEGA-PCI (OMEGA-3 fatty acids after pci to modify responsive
Lev EI, Solodky A, Harel N, et al. Treatment of aspirin-resistant patients with omega-3 fatty acids versus aspirin dose escalation. J Am Coll Cardiol. 2010 Jan 12;55(2):114-21. DOI
Sanders, T. A., Gleason, K., Griffin, B., and Miller, G. J. Influence of an algal triacylglycerol containing docosahexaenoic acid (22 : 6n-3) and docosapentaenoic acid (22 : 5n-6) on cardiovascular risk factors in healthy men and women. Br J Nutr 2006;95
Persson, C., Glimelius, B., Ronnelid, J., and Nygren, P. Impact of fish oil and melatonin on cachexia in patients with advanced gastrointestinal cancer: a randomized pilot study. Nutrition 2005;21(2):170-178. PubMed
Cobiac, L., Nestel, P. J., Wing, L. M., and Howe, P. R. A low-sodium diet supplemented with fish oil lowers blood pressure in the elderly. J Hypertens. 1992;10(1):87-92. PubMed
Maclean, C. H., Mojica, W. A., Morton, S. C., Pencharz, J., Hasenfeld, Garland R., Tu, W., Newberry, S. J., Jungvig, L. K., Grossman, J., Khanna, P., Rhodes, S., and Shekelle, P. Effects of omega-3 fatty acids on lipids and glycemic control in type II di
Schachter, H. M., Kourad, K., Merali, Z., Lumb, A., Tran, K., and Miguelez, M. Effects of omega-3 fatty acids on mental health. Evid.Rep.Technol.Assess.(Summ.) 2005;(116):1-11.
Reisman, J., Schachter, H. M., Dales, R. E., Tran, K., Kourad, K., Barnes, D., Sampson, M., Morrison, A., Gaboury, I., and Blackman, J. Treating asthma with omega-3 fatty acids: where is the evidence? A systematic review. BMC.Complement Altern Med 2006;6 PubMed
Caniato, R. N., Alvarenga, M. E., and Garcia-Alcaraz, M. A. Effect of omega-3 fatty acids on the lipid profile of patients taking clozapine. Aust N Z J Psychiatry 2006;40(8):691-697. DOI
Amminger, G. P., Berger, G. E., Schafer, M. R., Klier, C., Friedrich, M. H., and Feucht, M. Omega-3 fatty acids supplementation in children with autism: a double-blind randomized, placebo-controlled pilot study. Biol.Psychiatry 2-15-2007;61(4):551-553. PubMed
Bowden, R. G., Wilson, R. L., Gentile, M., Ounpraseuth, S., Moore, P., and Leutholtz, B. C. Effects of omega-3 fatty acid supplementation on vascular access thrombosis in polytetrafluorethylene grafts. J Ren Nutr 2007;17(2):126-131. PubMed
Lim, A. K., Manley, K. J., Roberts, M. A., and Fraenkel, M. B. Fish oil for kidney transplant recipients. Cochrane Database Syst Rev 2007;(2):CD005282. DOI
Freund-Levi, Y., Basun, H., Cederholm, T., Faxen-Irving, G., Garlind, A., Grut, M., Vedin, I., Palmblad, J., Wahlund, L. O., and Eriksdotter-Jonhagen, M. Omega-3 supplementation in mild to moderate Alzheimer's disease: effects on neuropsychiatric symptom
Davidson, M. H., Stein, E. A., Bays, H. E., Maki, K. C., Doyle, R. T., Shalwitz, R. A., Ballantyne, C. M., and Ginsberg, H. N. Efficacy and tolerability of adding prescription omega-3 fatty acids 4 g/d to simvastatin 40 mg/d in hypertriglyceridemic patie
Freeman, M. P., Davis, M., Sinha, P., Wisner, K. L., Hibbeln, J. R., and Gelenberg, A. J. Omega-3 fatty acids and supportive psychotherapy for perinatal depression: a randomized placebo-controlled study. J.Affect.Disord. 2008;110(1-2):142-148. PubMed
van de Rest, O., Geleijnse, J. M., Kok, F. J., van Staveren, W. A., Dullemeijer, C., Olderikkert, M. G., Beekman, A. T., and de Groot, C. P. Effect of fish oil on cognitive performance in older subjects: a randomized, controlled trial. Neurology 8-5-2008 PubMed
Turnbull, T., Cullen-Drill, M., and Smaldone, A. Efficacy of omega-3 fatty acid supplementation on improvement of bipolar symptoms: a systematic review. Arch Psychiatr.Nurs 2008;22(5):305-311. PubMed
Lucas, M., Asselin, G., Merette, C., Poulin, M. J., and Dodin, S. Ethyl-eicosapentaenoic acid for the treatment of psychological distress and depressive symptoms in middle-aged women: a double-blind, placebo-controlled, randomized clinical trial. Am.J.Cl PubMed
Buydens-Branch, Branchey, M., and Hibbeln, J. R. Low plasma levels of docosahexaenoic acid are associated with an increased relapse vulnerability in substance abusers. Am J Addict. 2009;18(1):73-80. PubMed
van de Rest, O., Geleijnse, J. M., Kok, F. J., van Staveren, W. A., Olderikkert, M. G., Beekman, A. T., and de Groot, L. C. Effect of fish oil supplementation on quality of life in a general population of older Dutch subjects: a randomized, double-blind,
Harper, M., Thom, E., Klebanoff, M. A., Thorp, J., Jr., Sorokin, Y., Varner, M. W., Wapner, R. J., Caritis, S. N., Iams, J. D., Carpenter, M. W., Peaceman, A. M., Mercer, B. M., Sciscione, A., Rouse, D. J., Ramin, S. M., and Anderson, G. D. Omega-3 fatty
Mallah, H. S., Brown, M. R., Rossi, T. M., and Block, R. C. Parenteral fish oil-associated burr cell anemia. J Pediatr 2010;156(2):324-326. PubMed
Bahadori, B., Uitz, E., Thonhofer, R., Trummer, M., Pestemer-Lach, I., McCarty, M., and Krejs, G. J. omega-3 Fatty acids infusions as adjuvant therapy in rheumatoid arthritis. JPEN J Parenter.Enteral Nutr 2010;34(2):151-155. PubMed
Turner, D., Shah, P. S., Steinhart, A. H., Zlotkin, S., and Griffiths, A. M. Maintenance of remission in inflammatory bowel disease using omega-3 fatty acids (fish oil): a systematic review and meta-analyses. Inflamm.Bowel.Dis. 2011;17(1):336-345. PubMed
Ng, R. C., Hirata, C. K., Yeung, W., Haller, E., and Finley, P. R. Pharmacologic treatment for postpartum depression: a systematic review. Pharmacotherapy 2010;30(9):928-941. PubMed
Salomon, P., Kornbluth, A. A., and Janowitz, H. D. Treatment of ulcerative colitis with fish oil n--3-omega-fatty acid: an open trial. J Clin Gastroenterol 1990;12(2):157-161.
Glaum, M., Metzelthin, E., Junker, S., Luley, C., and Klor, H. U. [Comparative effect of oral fat loads with saturated, omega-6 and omega- 3 fatty acids before and after fish oil capsule therapy in healthy probands]. Klin.Wochenschr 1990;68 Suppl 22:103-
Bonaa, K. H., Bjerve, K. S., Straume, B., Gram, I. T., and Thelle, D. Effect of eicosapentaenoic and docosahexaenoic acids on blood pressure in hypertension. A population-based intervention trial from the Tromso study. N Engl J Med 3-22-1990;322(12):795- DOI
Singer, P., Melzer, S., Goschel, M., and Augustin, S. Fish oil amplifies the effect of propranolol in mild essential hypertension. Hypertension 1990;16(6):682-691. PubMed
Mills, S. C., von Roon, A. C., Tekkis, P. P., and Orchard, T. R. Crohn's disease. Clin.Evid.(Online.) 2011;2011
Salvig, J. D. and Lamont, R. F. Evidence regarding an effect of marine n-3 fatty acids on preterm birth: a systematic review and meta-analysis. Acta Obstet.Gynecol.Scand. 2011;90(8):825-838. PubMed
Oliver, C. and Jahnke, N. Omega-3 fatty acids for cystic fibrosis. Cochrane.Database.Syst.Rev. 2011;(8):CD002201. PubMed
van der Meij, B. S., van Bokhorst-de van der Schueren MA, Langius, J. A., Brouwer, I. A., and van Leeuwen, P. A. n-3 PUFAs in cancer, surgery, and critical care: a systematic review on clinical effects, incorporation, and washout of oral or enteral compa
Martinez-Victoria, E. and Yago, M. D. Omega 3 polyunsaturated fatty acids and body weight. Br.J.Nutr. 2012;107 Suppl 2:S107-S116. PubMed
Delgado-Lista, J., Perez-Martinez, P., Lopez-Miranda, J., and Perez-Jimenez, F. Long chain omega-3 fatty acids and cardiovascular disease: a systematic review. Br.J.Nutr. 2012;107 Suppl 2:S201-S213. PubMed
Tur, J. A., Bibiloni, M. M., Sureda, A., and Pons, A. Dietary sources of omega 3 fatty acids: public health risks and benefits. Br.J.Nutr. 2012;107 Suppl 2:S23-S52. PubMed
Cabre, E., Manosa, M., and Gassull, M. A. Omega-3 fatty acids and inflammatory bowel diseases - a systematic review. Br.J.Nutr. 2012;107 Suppl 2:S240-S252. PubMed
Knapp, H. R. and FitzGerald, G. A. The antihypertensive effects of fish oil. A controlled study of polyunsaturated fatty acid supplements in essential hypertension. N Engl J Med 4-20-1989;320(16):1037-1043. PubMed
Zucker, M. L., Bilyeu, D. S., Helmkamp, G. M., Harris, W. S., and Dujovne, C. A. Effects of dietary fish oil on platelet function and plasma lipids in hyperlipoproteinemic and normal subjects. Atherosclerosis 1988;73(1):13-22. PubMed
Demke, D. M., Peters, G. R., Linet, O. I., Metzler, C. M., and Klott, K. A. Effects of a fish oil concentrate in patients with hypercholesterolemia. Atherosclerosis 1988;70(1-2):73-80. PubMed
Lungershausen, Y. K., Abbey, M., Nestel, P. J., and Howe, P. R. Reduction of blood pressure and plasma triglycerides by omega-3 fatty acids in treated hypertensives. J Hypertens. 1994;12(9):1041-1045. DOI
Weksler, B. B. Omega 3 fatty acids have multiple antithrombotic effects. World Rev Nutr Diet 1994;76:47-50. PubMed
Lawrence, R. and Sorrell, T. Eicosapentaenoic acid in cystic fibrosis: evidence of a pathogenetic role for leukotriene B4. Lancet 8-21-1993;342(8869):465-469. PubMed
Henderson, W. R., Jr., Astley, S. J., McCready, M. M., Kushmerick, P., Casey, S., Becker, J. W., and Ramsey, B. W. Oral absorption of omega-3 fatty acids in patients with cystic fibrosis who have pancreatic insufficiency and in healthy control subjects. DOI
Appel, L. J., Miller, E. R., III, Seidler, A. J., and Whelton, P. K. Does supplementation of diet with 'fish oil' reduce blood pressure? A meta-analysis of controlled clinical trials. Arch Intern Med 6-28-1993;153(12):1429-1438. DOI
Contacos, C., Barter, P. J., and Sullivan, D. R. Effect of pravastatin and omega-3 fatty acids on plasma lipids and lipoproteins in patients with combined hyperlipidemia. Arterioscler.Thromb. 1993;13(12):1755-1762. PubMed
Morris, M. C., Sacks, F., and Rosner, B. Does fish oil lower blood pressure? A meta-analysis of controlled trials. Circulation 1993;88(2):523-533. PubMed
Morris, M. C., Taylor, J. O., Stampfer, M. J., Rosner, B., and Sacks, F. M. The effect of fish oil on blood pressure in mild hypertensive subjects: a randomized crossover trial. Am J Clin Nutr 1993;57(1):59-64. PubMed
Loeschke, K., Ueberschaer, B., Pietsch, A., Gruber, E., Ewe, K., Wiebecke, B., Heldwein, W., and Lorenz, R. n-3 fatty acids only delay early relapse of ulcerative colitis in remission. Dig.Dis.Sci. 1996;41(10):2087-2094. PubMed
Busnach, G., Stragliotto, E., Minetti, E., Perego, A., Brando, B., Broggi, M. L., and Civati, G. Effect of n-3 polyunsaturated fatty acids on cyclosporine pharmacokinetics in kidney graft recipients: a randomized placebo- controlled study. J Nephrol. 199
Schachter, HM, Reisman, J, Tran, K, Dales, B, Kourad, K, Barnes, D, Sampson, M, Morrison, A, Gaboury, I, and Blackman, J. Health effects of omega-3 fatty acids on asthma. Evid.Rep.Technol.Assess.(Summ.) 2004;(91):1-7.
Sydenham E, Dangour AD Lim WS. Omega 3 fatty acid for the prevention of cognitive decline and dementia. Cochrane Database Syst Rev. 2012;6:CD005379. PubMed
Deutch B, Jorgensen EB, and Hansen JC. Menstrual discomfort in Danish women reduced by dietary supplements of omega-3 PUFA and B12 (fish oil or seal oil capsules). Nutr Res 2000;20(5):621-631. DOI
Kuenzel U and Bertsch S. Clinical experiences with a standardized commercial fish oil product containing 33.5% omega-3 fatty acids - field trial with 3958 hyperlipemic patients in general practitioner practice. In: Chandra RK. Health Effects of Fish and F
Knapp, H. R. Dietary fatty acids in human thrombosis and hemostasis. Am J Clin Nutr 1997;65(5 Suppl):1687S-1698S. PubMed
Archer, S. L., Green, D., Chamberlain, M., Dyer, A. R., and Liu, K. Association of dietary fish and n-3 fatty acid intake with hemostatic factors in the coronary artery risk development in young adults (CARDIA) study. Arterioscler Thromb.Vasc.Biol 1998;1 PubMed
Kromann, N. and Green, A. Epidemiological studies in the Upernavik district, Greenland. Incidence of some chronic diseases 1950-1974. Acta Med Scand 1980;208(5):401-406. DOI
Lev-Tzion R, Griffiths AM, Leder O, Turner D. Omega 3 fatty acids (fish oil) for maintenance of remission in Crohn's disease. Cochrane Database Syst Rev 2014;2:CD006320. PubMed
Mozaffarian D, Wu JH, de Oliveira Otto MC, Sandesara CM, Metcalf RG, Latini R, Libby P, Lombardi F, O'Gara PT, Page RL, Silletta MG, Tavazzi L, Marchioli R. Fish oil and post-operative atrial fibrillation: a meta-analysis of randomized controlled trials. PubMed
Nigam A1, Talajic M, Roy D, Nattel S, Lambert J, Nozza A, Jones P, Ramprasath VR, O'Hara G, Kopecky S, Brophy JM, Tardif JC; AFFORD Investigators. Fish oil for the reduction of atrial fibrillation recurrence, inflammation, and oxidative stress. J Am Coll
Oliveira JM, Rondó PH, Yudkin JS, Souza JM, Pereira TN, Catalani AW, Picone CM, Segurado AA. Effects of fish oil on lipid profile and other metabolic outcomes in HIV-infected patients on antiretroviral therapy: a randomized placebo-controlled trial. Int J PubMed
Souied EH, Delcourt C, Querques G, Bassols A, Merle B, Zourdani A, Smith T, Benlian P; Nutritional AMD Treatment 2 Study Group. Oral docosahexaenoic acid in the prevention of exudative age-related macular degeneration: the Nutritional AMD Treatment 2 stud DOI
Turk E, Karagulle E, Koksal H, Togan T, Erinanc OH, Dogru O, Moray G. Bilateral breast necrosis due to local injection of fish oil. Breast J 2013;19(2):196-8. PubMed
Xin W, Wei W, Lin Z, Zhang X, Yang H, Zhang T, Li B, Mi S. Fish oil and atrial fibrillation after cardiac surgery: a meta-analysis of randomized controlled trials. PLoS One 2013;8(9):e72913. PubMed
Briggs GG, Freeman RK, and Yaffe SJ. Drugs in Pregnancy and Lactation: A Reference Guide to Fetal and Neonatal Risk 10th edition. Lippinscott Williamns & Wilkins. Vol 25. No. 4, December 2012.
Kmet A, Unger J, Jahangir K, Kolber MR. Fish-oil capsule ingestion: a case of recurrent anaphylaxis. Can Fam Physician 2012;58(7):e379-81.
Daenen LG, Cirkel GA, Houthuijzen JM, et al. Increased plasma levels of chemoresistance-inducing fatty acid 16:4(n-3) after consumption of fish and fish oil. JAMA Oncol 2015;1(3):350-8. PubMed
Mazurak VC, Calder PC, van der Meij BS. Let them eat fish. JAMA Oncol 2015;1(6):840.
Baracos V. Let them eat fish. JAMA Oncol 2015;1(6):840-1.
Roodhart JM, Daenen LG, Stigter EC, et al. Mesenchymal stem cells induce resistance to chemotherapy through the release of platinum-induced fatty acids. Cancer Cell 2011;20(3):370-83.
Houthuijzen JM, Daenen LG, Roodhart JM, et al. Lysophospholipids secreted by splenic macrophages induce chemotherapy resistance via interference with the DNA damage response. Nat Commun 2014;5:5275. PubMed
Jeansen S, Witkamp RF, Garthoff JA, van Helvoort A, Calder PC. Fish oil LC-PUFAs do not affect blood coagulation parameters and bleeding manifestations: Analysis of 8 clinical studies with selected patient groups on omega-3-enriched medical nutrition. Cli PubMed
Vinding RK, Stokholm J, Sevelsted A, et al. Fish oil supplementation in pregnancy increases gestational age, size for gestational age, and birth weight in infants: A randomized controlled trial. J Nutr. 2019;149(4):628-634. PubMed
McNamara RK, Strawn JR, Tallman MJ, et al. Effects of fish oil monotherapy on depression and prefrontal neurochemistry in adolescents at high risk for bipolar I disorder: A 12-week placebo-controlled proton magnetic resonance spectroscopy trial. J Child A PubMed
Nicholls SJ, Lincoff AM, Garcia M, et al. Effect of high-dose omega-3 fatty acids vs corn oil on major adverse cardiovascular events in patients at high cardiovascular risk: The STRENGTH randomized clinical trial. JAMA. 2020e2022258.
Riddell JK, Malin AJ, Flora D, McCague H, Till C. Association of water fluoride and urinary fluoride concentrations with attention deficit hyperactivity disorder in Canadian youth. Environ Int. 2019;133(Pt B):105190. PubMed
Suradom C, Suttajit S, Oon-Arom A, Maneeton B, Srisurapanont M. Omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementation for prevention and treatment of perinatal depression: a systematic review and meta-analysis of randomized-controlled trials. Nord PubMed
Robertsen I, Åsberg A, Jenssen TG, et al. Increased systemic exposure of once daily tacrolimus in renal transplant recipients on marine omega-3 fatty acid supplementation. Transpl Int. 2021. PubMed
Cortinovis M, Gotti E, Remuzzi G, Perico N, Cattaneo D, Baldelli S. Omega-3 polyunsaturated fatty acids affect sirolimus exposure in kidney transplant recipients on calcineurin inhibitor-free regimen. Transplantation. 2010;89(1):126-7. PubMed
Lombardi M, Carbone S, Del Buono MG, et al. Omega-3 fatty acids supplementation and risk of atrial fibrillation: an updated meta-analysis of randomized controlled trials. Eur Heart J Cardiovasc Pharmacother 2021;7(4):e69-e70. PubMed
Gencer B, Djousse L, Al-Ramady OT, Cook NR, Manson JE, Albert CM. Effect of long-term marine ɷ-3 fatty acids supplementation on the risk of atrial fibrillation in randomized controlled trials of cardiovascular outcomes: A systematic review and meta-a
Elsadek AE, Maksoud YHA, Suliman HA, et al. Omega-3 supplementation in children with ADHD and intractable epilepsy. J Clin Neurosci 2021;94:237-243. PubMed
Liu Z, Luo Y, Ren J, et al. Association between fish oil supplementation and cancer risk according to fatty fish consumption: A large prospective population-based cohort study using UK Biobank. Int J Cancer 2022;150(4):562-571.
Fradet S, Pelletier JF, Singbo N, et al. Effects of omega-3 fatty acids supplementation on perioperative blood loss and complications after radical prostatectomy. Clin Nutr ESPEN 2022;47:221-226. PubMed
Khan SU, Lone AN, Khan MS, et al. Effect of omega-3 fatty acids on cardiovascular outcomes: A systematic review and meta-analysis. EClinicalMedicine 2021;38:100997. PubMed
Li Y, Liao LM, Sinha R, et al. Fish intake and risk of melanoma in the NIH-AARP diet and health study. Cancer Causes Control. 2022;33(7):921-8. PubMed
Satokar VV, Derraik JGB, Harwood M, et al. Fish oil supplementation during pregnancy and postpartum in mothers with overweight and obesity to improve body composition and metabolic health during infancy: A double-blind randomized controlled trial. Am J Cl PubMed
Moussa H, Robitaille K, Pelletier JF, et al. Effects of concentrated long-chain omega-3 polyunsaturated fatty acid supplementation on quality of life after radical prostatectomy: A phase II randomized placebo-controlled trial (RCT-EPA). Nutrients 2023;15( PubMed
European Medicines Agency. Meeting highlights from the Pharmacovigilance Risk Assessment Committee (PRAC) 25-28 September 2023. September 29, 2023. Available at: https://www.ema.europa.eu/en/news/meeting-highlights-pharmacovigilance-risk-assessment-commit
Myhre PL, Berge T, Kalstad AA, et al. Omega-3 fatty acid supplements and risk of atrial fibrillation and 'micro-atrial fibrillation': A secondary analysis from the OMEMI trial. Clin Nutr 2023;42(9):1657-1660. PubMed
Sarrafi S, Pourzeinali S, Shakouri SK, Farshbaf-Khalili A, Ostadrahimi A. The effectiveness of perinatal omega-3 supplements in neurodevelopment and physical growth of 9- and 12-month-old infants: A follow-up of a clinical trial. Curr Pediatr Rev 2024. PubMed
Vinding RK, Sevelsted A, Horner D, et al. Fish oil supplementation during pregnancy, anthropometrics, and metabolic health at age ten: A randomized clinical trial. Am J Clin Nutr 2024;119(4):960-968.
Chen G, Qian ZM, Zhang J, et al. Regular use of fish oil supplements and course of cardiovascular diseases: prospective cohort study. BMJ Med 2024;3(1):e000451. PubMed
Wang HF, Liu WC, Zailani H, et al. A 12-week randomized double-blind clinical trial of eicosapentaenoic acid intervention in episodic migraine. Brain Behav Immun 2024;118:459-467. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Fish Oil and Linaclotide Together: Common Questions

Is it safe to take Fish Oil with Linaclotide?

We do not list a known interaction between Fish Oil and Linaclotide. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.

Do Fish Oil and Linaclotide have any of the same side effects?

Yes — our sources link each of them separately to 8 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.

Should I take Fish Oil and Linaclotide at the same time of day?

At least one FDA label for a product containing Linaclotide says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Linaclotide on its own and move Fish Oil to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.

How was the Fish Oil and Linaclotide combination checked?

Interactions in our licensed database are recorded against drug classes. Linaclotide is filed under 1 classification, and Fish Oil has documented interactions with 9 drug classes — none of Linaclotide's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.

Does Fish Oil interact with any other medications?

Yes. Fish Oil has 327 documented drug interactions in our database — Linaclotide is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Does Linaclotide interact with any supplements?

Yes. Linaclotide has documented interactions with 17 supplements in our database — Fish Oil is not one of them. The Linaclotide interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Fish Oil monograph Uses, safety profile, and every drug interaction in one place Linaclotide drug information The full plain-English guide to this medication Linaclotide supplement interactions Every supplement checked against Linaclotide, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 157 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Linaclotide and Fish Oil?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.