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Dietary supplement

Certified Organic High Lignan Flax Oil Ingredients & Drug Interactions

by Flora

Certified Organic High Lignan Flax Oil label
See full label image
Liquid Category: Fat/fatty Acid
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Certified Organic High Lignan Flax Oil against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Certified Organic High Lignan Flax Oil is a dietary supplement by Flora with 3 active ingredients. Its ingredients are commonly taken for heart health, healthy cooking fat, skin moisturizing.Based on those ingredients, 86 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Oleic Acid. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Certified Organic High Lignan Flax Oil by Flora

Ask about any prescription or over-the-counter medication and we check it for interactions with Certified Organic High Lignan Flax Oil by Flora — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Certified Organic High Lignan Flax Oil by Flora

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 16, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 5 of its 5 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This liquid supplement contains 5 active ingredients, mainly essential fatty acids from flax seed oil: polyunsaturated fat, monounsaturated fat, linoleic acid, oleic acid, and alpha-linolenic acid. Oleic acid is a monounsaturated fat also found in olive oil and avocados.

The product also includes defatted flax as an inactive ingredient. The "high lignan" part means this oil has been processed to preserve lignans, compounds naturally present in flax seed that may have antioxidant properties, though the specific amounts aren't listed.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: maintenance of good health.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

The data we hold covers oleic acid only. It's rated possibly effective for lowering cholesterol and for supporting heart health in people with coronary heart disease — the same benefits you'd get from oleic-acid-rich foods like olive oil.

We don't have effectiveness ratings for the other fatty acids in this product, so we can't speak to whether the flax oil as a whole is effective for any particular condition beyond what oleic acid shows.

The evidence, ingredient by ingredient Oleic Acid

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Oleic acid in food amounts is generally recognized as safe. However, the safety data we hold notes caution: concentrated supplement doses of oleic acid haven't been well studied in pregnancy or while breastfeeding.

Food amounts are considered fine, but supplement-level doses lack good safety data. If you're pregnant or nursing, talk with your doctor or pharmacist before starting this product.

No serious adverse effects are documented in the data we hold.

Side effects, ingredient by ingredient Oleic Acid

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Oleic Acid.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 86 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take any antidiabetes drug or medication for low blood sugar, talk with your doctor or pharmacist before adding this product — oleic acid may increase how well those drugs work. No other medication interactions are documented for the ingredients we could check.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and some safety-information gaps remain.

This product might be worth considering if you're looking for plant-based omega fatty acids and are interested in the possible cholesterol and heart-health benefits of oleic acid. If you take antidiabetes medication, or are pregnant or breastfeeding, check with your own doctor or pharmacist first — the blood-sugar interaction and the limited pregnancy safety data both deserve personalized advice.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 26, 2020.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Certified Organic High Lignan Flax Oil, straight from the product label.

Brand Flora
Barcode (UPC) 061998678947
Net contents 8.5 fl. Oz.; 250 mL
Market status On market
Date entered into DSLD Feb 26, 2020
DSLD ID 213385
Product type Fat/fatty Acid
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Kosher, Organic, Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Certified Organic High Lignan Flax Oil by Flora, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
15 mL
Maximum serving Sizes:
15 mL
Servings per container
16
UPC/BARCODE
061998678947
IngredientAmount% DV
Calories130 Calorie(s)--
Total Fat14 Gram(s)18%
Polyunsaturated Fat9 Gram(s)--
Monounsaturated Fat2.5 Gram(s)--
Saturated Fat1 Gram(s)5%
Linoleic Acid2 Gram(s)--
Oleic Acid2.5 Gram(s)--
Alpha-Linolenic Acid7 Gram(s)--

Other ingredients: certified organic Flax seed Oil, certified organic defatted Flax

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

Flora's High Lignan Flax Oil is a vegetarian source of omegas, each tablespoon containing 7 g omega-3 and 2 g omega-6 fatty acids (EFAs) for the maintenance of good health. Every batch of certified organic flax seed (third party certification) has been carefully selected for flavor and maturity. In addition, each and every batch of flax seed is also tested to ensure it is gluten-free. Flora's flax oil has been non-GMO project verified in order to ensure the safest, highest quality oil possible. This oil provides lignans, a natural source of beneficial antioxidants and phytoestrogens.

Kosher Check

Formulation

Flora's flax seeds are pressed in a state-of-the-art, low-heat, light- and oxygen-free environment-- then bottled in light-resistant, amber glass to ensure maximum nutritional value and freshness.

Pure premium oil Cold-pressed & unrefined

Gluten-free

Certified organic by QAI

Non GMO

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

USDA Organic Non GMO Project Verified nongmoproject.org

Kosher Check Quality Assurance International Certified Organic

Precautions

Caution: Manufactured in a facility that also processes mustard and wheat.

Do not heat or use for frying. Security sealed for your protection. Do not use if seal is missing or damaged.

Suggested/Recommended/Usage/Directions

Suggested use: Shake well before using. Take 1 tbsp. up to 3 times daily.

It tastes delicious alone or may be combined with food such as salad dressings, sauces, power shakes, on vegetables, or spread on bread.

Storage

For optimum freshness, keep refrigerated and use within 2 months after opening. Flax oil can be frozen to maintain freshness.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Certified Organic High Lignan Flax Oil by Flora label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Certified Organic High Lignan Flax Oil label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Certified Organic High Lignan Flax Oil by Flora

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size15 mL Dosage formLiquid Servings per container16 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Linoleic Acid

2 Gram(s) per serving

Oleic Acid

Interacts with
86 drugs
2.5 Gram(s) per serving

Oleic acid is a heart-healthy monounsaturated fat found mainly in olive oil, canola oil, avocados, and nuts. As part of a Mediterranean-style diet, it...

Oleic Acid monograph & interactions

Alpha-Linolenic Acid

7 Gram(s) per serving

Other (inactive) ingredients: Certified organic Flax seed Oil, Certified organic defatted Flax. These complete the product’s ingredient list but are not active constituents.

Interaction report

Certified Organic High Lignan Flax Oil by Flora Drug Interactions

Want to check YOUR meds against Certified Organic High Lignan Flax Oil?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
86Drugs
86 Moderate

Ingredients driving the most interactions

Oleic Acid 86

Individual Drug Interactions

The ingredients in Certified Organic High Lignan Flax Oil interact with 86 drugs. Click any drug to see the details.

1 of the 3 ingredients in Certified Organic High Lignan Flax Oil interact with drugs. Each result below shows which ingredient is responsible. Oleic Acid

Each ingredient & the kinds of drugs it affects

For each ingredient in Certified Organic High Lignan Flax Oil with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Oleic Acid1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, oleic acid might increase the effects of antidiabetes drugs. Preliminary clinical research in patients with type 2 diabetes taking oral hypoglycemic drugs shows that eating a diet rich in oleic acid from olive oil decreases fasting blood glucose levels when compared to eating a diet rich in linoleic acid from sunflower oil. It is unknown if taking oleic acid supplements would have this effect or if this change is clinically significant. Until more is known, use caution. Dose adjustment may be necessary. Some antidiabetes drugs include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, metformin (Glucophage), pioglitazone (Actos), rosiglitazone (Avandia), and others.

Likelihood Possible Evidence B
Oleic Acid full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Certified Organic High Lignan Flax Oil, from the product label.

Flora

See all Flora products
Name
FLORA INC.
Street Address
805 E. BADGER RD.
City
LYNDEN
State
WA
ZipCode
98264
Phone Number
1.800.446.2110
Web Address
www.florahealth.com
Pharmacist Counseling Corner

Certified Organic High Lignan Flax Oil by Flora: Common Questions

Does Certified Organic High Lignan Flax Oil by Flora interact with any medications?
Yes. Based on its ingredients, Certified Organic High Lignan Flax Oil has a known interaction with 86 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Certified Organic High Lignan Flax Oil contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Does this flax oil actually help with cholesterol?
The oleic acid in it is rated possibly effective for lowering cholesterol — that's the same benefit you'd see from eating olive oil. The evidence is preliminary, not a guarantee, but it's there.
Is it safe to take if I'm pregnant?
The safety data we hold is limited for supplement-level doses during pregnancy. Food amounts of oleic acid are fine, but we don't have enough study of concentrated supplements in pregnancy. Talk with your doctor or pharmacist to decide what's right for you.
What are lignans and why does this product highlight them?
Lignans are compounds naturally found in flax seed that may act as antioxidants. The product is marketed as 'high lignan' because it's been processed to keep those compounds in. We don't have specific effectiveness data on them in our facts.
Can I take this if I'm on diabetes medication?
The oleic acid in this product might boost how well your blood sugar medication works, which could lower your blood sugar more than expected. Check with your doctor or pharmacist before starting — they can monitor you or adjust your dose if needed.
What's the difference between the fats in this product?
It contains polyunsaturated fats (like omega-3 and omega-6), monounsaturated fats (like oleic acid), and includes linoleic and alpha-linolenic acids. These are all essential fatty acids your body needs but can't make on its own.

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

Not sure if Certified Organic High Lignan Flax Oil is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Certified Organic High Lignan Flax Oil label
Go deeper

The Full Monographs Behind Certified Organic High Lignan Flax Oil’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Oleic Acid

Interacts with 86 drugs

Oleic acid is a heart-healthy monounsaturated fat found mainly in olive oil, canola oil, avocados, and nuts. As part of a Mediterranean-style diet, it is widely viewed as a healthier replace...

Read the full Oleic Acid monograph →
Sources

Sources & How We Checked

Certified Organic High Lignan Flax Oil's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 19 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Oleic Acid 19 references
  1. Madigan C, Ryan M, Owens D, et al. Dietary unsaturated fatty acids in type 2 diabetes: higher levels of postprandial lipoprotein on a linoleic acid-rich sunflower oil diet compared with an oleic acid-rich olive oil diet. Diabetes Care 2000;23:1472-7. PubMed
  2. Gillingham, L. G., Gustafson, J. A., Han, S. Y., Jassal, D. S., and Jones, P. J. High-oleic rapeseed (canola) and flaxseed oils modulate serum lipids and inflammatory biomarkers in hypercholesterolaemic subjects. Br J Nutr 2011;105(3):417-427. PubMed
  3. Jones PJ, Senanayake VK, Pu S, Jenkins DJ, Connelly PW, Lamarche B, Couture P, Charest A, Baril-Gravel L, West SG, Liu X, Fleming JA, McCrea CE, Kris-Etherton PM. DHA-enriched high-oleic acid canola oil improves lipid profile and lowers predicted cardiova
  4. Cater, N. B., Heller, H. J., and Denke, M. A. Comparison of the effects of medium-chain triacylglycerols, palm oil, and high oleic acid sunflower oil on plasma triacylglycerol fatty acids and lipid and lipoprotein concentrations in humans. Am.J Clin.Nutr PubMed
  5. Mozaffarian D, Clarke R. Quantitative effects on cardiovascular risk factors and coronary heart disease risk of replacing partially hydrogenated vegetable oils with other fats and oils. Eur J Clin Nutr. 2009;63(Suppl 2):S22-33. PubMed
  6. Cao Y, Hou L, Wang W. Dietary total fat and fatty acids intake, serum fatty acids and risk of breast cancer: A meta-analysis of prospective cohort studies. Int J Cancer. 2016;138(8):1894-904. doi: 10.1002/ijc.29938. PubMed
  7. FDA completes review of qualified health claim petition for oleic acid and the risk of coronary heart disease. November 2018. Available at: www.fda.gov/Food/NewsEvents/ConstituentUpdates/ucm624758.htm. Accessed January 25, 2019.
  8. Liu X, Kris-Etherton PM, West SG, et al. Effects of canola and high-oleic-acid canola oils on abdominal fat mass in individuals with central obesity. Obesity. 2016;24(11):2261-2268. PubMed
  9. Bowen KJ, Kris-Etherton PM, West SG, et al. Diets enriched with conventional or high-oleic acid canola oils lower atherogenic lipids and lipoproteins compared to a diet with a western fatty acid profile in adults with central adiposity. J Nutr. 2019;149(3 PubMed
  10. Steffen BT, Duprez D, Szklo M, Guan W, Tsai MY. Circulating oleic acid levels are related to greater risks of cardiovascular events and all-cause mortality: The Multi-Ethnic Study of Atherosclerosis. J Clin Lipidol. 2018;12(6):1404-1412. PubMed
  11. Banim PJ, Luben R, Khaw KT, Hart AR. Dietary oleic acid is inversely associated with pancreatic cancer - Data from food diaries in a cohort study. Pancreatology. 2018;18(6):655-660. PubMed
  12. Morin SJ, Gaziano JM, Djoussé L. Relation between plasma phospholipid oleic acid and risk of heart failure. Eur J Nutr. 2018;57(8):2937-2942. PubMed
  13. Samieri C, Féart C, Proust-Lima C, et al. Olive oil consumption, plasma oleic acid, and stroke incidence: the Three-City Study. Neurology. 2011;77(5):418-25. PubMed
  14. Compher CW, Kinosian BP, Rubesin SE, Ratcliffe SJ, Metz DC. Energy absorption is reduced with oleic acid supplements in human short bowel syndrome. JPEN J Parenter Enteral Nutr. 2009;33(1):102-8. PubMed
  15. Ben Fradj MK, Ouanes Y, Hadj-Taieb S, et al. Decreased oleic acid and marine n?-?3 polyunsaturated fatty acids in Tunisian patients with urothelial bladder cancer. Nutr Cancer. 2018;70(7):1043-1050.
  16. de Silva PS, Luben R, Shrestha SS, Khaw KT, Hart AR. Dietary arachidonic and oleic acid intake in ulcerative colitis etiology: a prospective cohort study using 7-day food diaries. Eur J Gastroenterol Hepatol. 2014;26(1):11-8. PubMed
  17. Higashi K, Shige H, Ito T, et al. Effect of a low-fat diet enriched with oleic acid on postprandial lipemia in patients with type 2 diabetes mellitus. Lipids. 2001;36(1):1-6. PubMed
  18. Lin HC, van Citters GW, Heimer F, Bonorris G. Slowing of gastrointestinal transit by oleic acid: a preliminary report of a novel, nutrient-based treatment in humans. Dig Dis Sci. 2001;46(2):223-9. PubMed
  19. Li D, Tong Y, Li Y. Associations between dietary oleic acid and linoleic acid and depressive symptoms in perimenopausal women: The Study of Women's Health Across the Nation. Nutrition. 2020 Mar;71:110602. PubMed

See these in context on the Oleic Acid monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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