Interactions on record — worth a quick check against your medications. Based on 3 of 7 ingredients. Check your meds →
Dietary supplement

Dietary Fiber Formula Ingredients & Drug Interactions

by Beyond Health

Dietary Fiber Formula label
See full label image
Powder Category: Other Combinations
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 Dietary Fiber Formula 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

Dietary Fiber Formula is a dietary supplement by Beyond Health with 7 active ingredients. Its ingredients are commonly taken for thyroid health support, antioxidant support, immune support.Based on those ingredients, 2,120 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Glucomannan, Gum Acacia, Selenium. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Dietary Fiber Formula by Beyond Health

Ask about any prescription or over-the-counter medication and we check it for interactions with Dietary Fiber Formula by Beyond Health — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Dietary Fiber Formula by Beyond Health

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 11, 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 7 of its 7 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Beyond Health's Dietary Fiber Formula contains 7 ingredients. The two active ones are selenium, a trace mineral that supports immune function and thyroid health, and glucomannan, a soluble fiber derived from the konjac plant that helps bulk stool and support digestive regularity.

The remaining five ingredients — Gum Acacia, Oat Fiber, Dextran, OPC 85, and Phosphatides — are inactive ingredients that give the formula its texture and structure as a powder.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Dietary fiber supplement for digestive health.
  • We looked for evidence on: Constipation, Dyslipidemia, Hyperlipidemia, Obesity, Diabetes, Metabolic syndrome — and 4 related terms.
  • The strongest evidence on file: Glucomannan is rated "Possibly Effective" for Constipation (Natural Medicines).
  • Also on file: Glucomannan is rated "Possibly Effective" for Diabetes, Hyperlipidemia.
  • Also on file: Selenium is rated "Possibly Ineffective" for Dyslipidemia.

Selenium in this formula is likely effective for treating selenium deficiency and possibly effective for Kashin-Beck disease (a joint condition), pre-eclampsia, and autoimmune thyroiditis. It appears possibly ineffective for high cholesterol.

Glucomannan is possibly effective for constipation, diabetes blood sugar control, and high cholesterol. The evidence for glucomannan's use in high blood pressure is insufficient to rate.

Neither ingredient has strong evidence for all the conditions people use dietary fiber formulas for, so talk with your doctor about whether this formula fits your specific health goal.

The evidence, ingredient by ingredient Selenium Glucomannan Gum Arabic

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Selenium is generally well tolerated at normal dietary doses — up to 400 mcg daily — but excess amounts can cause gastric discomfort, headache, rash, nail changes, hair loss, nausea, and vomiting. Long-term high doses carry serious risks including liver damage and, rarely, multi-organ failure.

Chronic exposure to excess selenium may increase the risk of amyotrophic lateral sclerosis (ALS), a serious nerve disease. Glucomannnan is well tolerated when taken with plenty of water, but common side effects include bloating, gas, constipation, diarrhea, nausea, and abdominal pain — especially at doses over 3 grams daily.

Taking it as a dry powder or without enough fluid risks choking or blockage of the esophagus or intestines, a rare but serious concern. Safety during pregnancy is not well established; talk with your doctor before using while pregnant or breastfeeding.

Side effects, ingredient by ingredient Selenium Glucomannan Gum Arabic

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?
  • 3 of the 3 matched ingredients can interact with medications — Glucomannan, Gum Arabic, Selenium.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs.
  • For scale: 2,121 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.

Check with your pharmacist before using this product if you take blood thinners or antiplatelet drugs (like warfarin or aspirin) — selenium may increase bleeding risk. Also screen immunosuppressants, barbiturates, niacin, contraceptive drugs, and any oral medications you depend on, since glucomannan may reduce their absorption.

The fiber can interfere with how medications work if taken at the same time.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This fiber formula may help with constipation and cholesterol if those are your goals, but selenium content means you need to check your blood thinners, immunosuppressants, and any barbiturate medications first. The fiber itself can interfere with how your body absorbs other oral drugs.

Always take this with plenty of water and don't skip talking to your pharmacist about your current medications — the interaction list is substantial.

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

Assessment coverage: 3 of 7 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 22, 2024.

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 Dietary Fiber Formula, straight from the product label.

Brand Beyond Health
Barcode (UPC) 610079876453
Net contents 16 Ounce(s); 454 Gram(s)
Market status On market
Date entered into DSLD Mar 22, 2024
DSLD ID 306887
Product type Other Combinations
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Sugar 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 Dietary Fiber Formula by Beyond Health, 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:
7 Gram(s)
Maximum serving Sizes:
7 Gram(s)
Servings per container
64
UPC/BARCODE
610079876453
IngredientAmount% DV
Selenium125 mcg180%
Glucomannan2 Gram(s)--
Gum Acacia3.5 Gram(s)--
Oat Fiber1 Gram(s)--
Dextran500 mg--
OPC 8512.5 mg--
Phosphatides36 mg--

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.
Brand IP Statement(s)

Beyond Health Helping you get well and stay well One disease Two causes Six pathways

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take 7 grams (1 scoop) in juice or water one (1) to five (5) times daily or as directed by your health professional.

FDA Disclaimer Statement

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

Precautions

Keep out of reach of children.

Do not use product if the tamper-resistant shrink band around the cap or the inner seal beneath the cap appears to have been tampered with or is missing.

Storage

Must be stored with cap on tightly in a cool, dry place.

Formulation

Unique features Pure, hypoallergenic components Fully bioactive Biochemically formulated

Organic base

Does not contain: Citrus, MSG, wheat, gluten, corn, starch, sugar, wax, soy, yeast, zein, sulfate, phosphates (other than coenzymes), preservatives, casein or other milk derivatives No GMO's

Manufactured in the U.S.A.

100% vegetable formula

General Statements

World class supplements

Formula

Includes cofactors that are usable in generating high-energy compounds Vitamins, minerals, synergistic cofactors

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

See for yourself

Dietary Fiber Formula by Beyond Health label

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

Dietary Fiber Formula 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 Dietary Fiber Formula by Beyond Health

These are the 7 active ingredients this product is made of. Select any to open its full monograph.

Serving size7 Gram(s) Dosage formPowder Servings per container64 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.

Selenium

Interacts with
321 drugs
125 mcg per serving

Selenium is an essential trace mineral your body needs in small amounts for thyroid function, antioxidant defense, and immune health. Most people who...

Selenium monograph & interactions

Glucomannan

Interacts with
2,022 drugs
2 Gram(s) per serving

Glucomannan is a soluble fiber from the konjac root that swells into a gel in your stomach, which may help with mild weight loss, constipation, and mo...

Glucomannan monograph & interactions

Gum Acacia

Interacts with
2,022 drugs
3.5 Gram(s) per serving Form: Gum Arabic

Gum arabic is a soluble dietary fiber from the acacia tree that is widely used as a safe food additive and is sometimes taken as a supplement for dige...

Gum Acacia monograph & interactions

Oat Fiber

1 Gram(s) per serving Form: Beta-Glucan

Dextran

500 mg per serving Form: Fructooligosaccharides

OPC 85

12.5 mg per serving Form: ActiVin IH636(TM), proanthocyanidins

Phosphatides

36 mg per serving Form: Phosphatidyl-Choline, Phosphatidyl-Ethanolamine, Phosphatidyl-Inositol
Interaction report

Dietary Fiber Formula by Beyond Health Drug Interactions

Want to check YOUR meds against Dietary Fiber Formula?

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
2,120Drugs
2,115 Moderate 5 Minor

Ingredients driving the most interactions

Glucomannan 2,022
Gum Acacia 2,022
Selenium 321

Individual Drug Interactions

The ingredients in Dietary Fiber Formula interact with 2,120 drugs. Click any drug to see the details.

3 of the 7 ingredients in Dietary Fiber Formula interact with drugs. Each result below shows which ingredient is responsible. Glucomannan Gum Acacia Selenium

Each ingredient & the kinds of drugs it affects

For each ingredient in Dietary Fiber Formula with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Glucomannan1 drug type · 2,022 drugs

Oral Drugs

Theoretically, glucomannan may decrease absorption of drugs taken orally.
Due to its viscosity and bulking effects, there is concern that glucomannan can decrease the absorption of oral drugs. A small clinical study in healthy volunteers shows that taking glyburide 2.5 mg plus glucomannan 3.9 grams with breakfast reduces plasma levels of glyburide when compared with breakfast and glyburide alone. In addition, animal research demonstrates this effect on amoxicillin, but shows increased absorption of metronidazole. This mouse model also demonstrates that metronidazole elimination is prolonged, but amoxicillin elimination is enhanced by 38%; glucomannan may also affect the distribution of some drugs. To avoid changes in absorption, take glucomannan 30-60 minutes after taking oral drugs.

Likelihood Probable Evidence B
Glucomannan full monograph & interactions

Gum Acacia2 drug types · 2,022 drugs

Amoxicillin (Amoxil, Trimox)

Gum arabic can reduce the absorption of amoxicillin.
A small study in healthy volunteers shows that taking amoxicillin and gum arabic concurrently significantly reduces the absorption of amoxicillin. Separate doses of amoxicillin from gum arabic by at least 2 hours.

Likelihood Probable Evidence B
Oral Drugs

Theoretically, gum arabic can alter the absorption of oral drugs due to its fiber content.
Gum arabic has been used as a suspending osmotic agent in drug formulations. It might improve bioavailability of water-insoluble drugs like naproxen, but reduce absorption of polar drugs like amoxicillin. To avoid changes in absorption, take gum arabic 30-60 minutes after oral medications.

Likelihood Possible Evidence B
Gum Acacia full monograph & interactions

Selenium6 drug types · 321 drugs

Anticoagulant/Antiplatelet Drugs

Selenium may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Clinical research suggests that taking selenium 10 mcg/kg/day can increase bleeding times by increasing prostacyclin production, which inhibits platelet activity. Other clinical research suggests that taking selenium 75 mcg daily, in combination with ascorbic acid 600 mg, alpha-tocopherol 300 mg, and beta-carotene 27 mg, reduces platelet aggregation.

Likelihood Possible Evidence D
Barbiturates

Theoretically, selenium might prolong the sedating effects of barbiturates.
Laboratory research suggests that selenium can inhibit the hepatic metabolism of barbiturates. Selenium seems to prolong the sedative effect of pentobarbital in animal models.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, selenium supplementation may reduce the effectiveness of immunosuppressant therapy.
In vitro research and preliminary clinical evidence suggests that selenium may stimulate the immune system.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, selenium might interfere with warfarin activity.
Animal research suggests that selenium can increase warfarin activity. Selenium might interact with warfarin by displacing it from albumin binding sites, reducing its metabolism in the liver, or by decreasing production of vitamin K-dependent clotting factors. Selenium can also prolong bleeding times in humans by increasing prostacyclin production, which inhibits platelet activity.

Likelihood Possible Evidence D
Contraceptive Drugs

Contraceptive drugs might increase levels of selenium, although the clinical significance of this effect is unclear.
Some research suggests that oral contraceptives increase serum selenium levels in women taking oral contraceptives; however, other research shows no change in selenium levels. It is suggested that an increase could be due to increased carrier proteins, indicating a redistribution of selenium rather than a change in total body selenium.

Likelihood Possible Evidence B
Niacin

Selenium might reduce the beneficial effects of niacin on high-density lipoprotein (HDL) levels.
A combination of niacin and simvastatin (Zocor) effectively raises HDL cholesterol levels in patients with coronary disease and low HDL levels. Clinical research shows that taking a combination of antioxidants (vitamin C, vitamin E, beta-carotene, and selenium) along with niacin and simvastatin (Zocor) attenuates this rise in HDL, specifically the HDL-2 and apolipoprotein A1 fractions, by more than 50% in patients with coronary disease. It is not known whether this adverse effect is due to a single antioxidant such as selenium, or to the combination. It also is not known whether it will occur in other patient populations.

Likelihood Possible Evidence A
Selenium full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Dietary Fiber Formula, from the product label.

Beyond Health

See all Beyond Health products
Name
Beyond Health International
Street Address
6555 Powerline Road, #101
City
Fort Lauderdale
State
FL
ZipCode
33309
Phone Number
800-250-3063
Web Address
www.beyondhealth.com
Pharmacist Counseling Corner

Dietary Fiber Formula by Beyond Health: Common Questions

Does Dietary Fiber Formula by Beyond Health interact with any medications?
Yes. Based on its ingredients, Dietary Fiber Formula has a known interaction with 2,120 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Dietary Fiber Formula contains 7 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.
Will this fiber powder interact with my blood thinner?
Possibly. Selenium in this formula may increase bleeding risk with anticoagulants and antiplatelet drugs like warfarin or aspirin. Plus, the glucomannan fiber could reduce how well your medication is absorbed. You must check this with your pharmacist before starting.
What are the most common side effects I might feel?
The fiber can cause bloating, gas, constipation, diarrhea, nausea, and belly pain — especially if you take more than 3 grams daily without enough water. Selenium at high doses can cause headache, rash, and nail changes. Starting low and increasing gradually, plus drinking plenty of water, usually helps.
Can I take this if I'm pregnant?
The data on glucomannan safety in pregnancy isn't solid enough to say either way, and there's no pregnancy safety information on file for selenium in this formula. Talk with your doctor before using it while pregnant.
How much selenium is safe to take daily?
The tolerable upper intake level is 400 mcg daily. This powder doesn't list the exact dose of selenium, so check the label or ask us what dose it provides — that way you know you're not exceeding the safe upper limit.
Should I take this powder at the same time as my other medications?
No. Glucomannan can reduce how well your body absorbs oral drugs, so take this fiber formula at a different time — ideally a few hours apart from other medications. Your pharmacist can help you space them out.
Is this formula safe for long-term use?
Selenium is safe at normal dietary doses long-term, but high-dose or prolonged supplementation carries risks including liver damage and a possible link to nerve disease. Don't take high-dose selenium supplements unless your doctor directs it. Glucomannan is fine for regular use as long as you drink plenty of water and stay well below 3 grams daily without medical guidance.

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

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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.

Dietary Fiber Formula label
Go deeper

The Full Monographs Behind Dietary Fiber Formula’s Ingredients

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

Herb & supplement monograph

Selenium

Interacts with 321 drugs

Selenium is an essential trace mineral your body needs in small amounts for thyroid function, antioxidant defense, and immune health. Most people who eat a varied diet get enough, and supple...

Read the full Selenium monograph → Herb & supplement monograph

Glucomannan

Interacts with 2,022 drugs

Glucomannan is a soluble fiber from the konjac root that swells into a gel in your stomach, which may help with mild weight loss, constipation, and modestly lowering cholesterol. It is gener...

Read the full Glucomannan monograph → Herb & supplement monograph

Gum Arabic

Interacts with 2,022 drugs

Gum arabic is a soluble dietary fiber from the acacia tree that is widely used as a safe food additive and is sometimes taken as a supplement for digestive health and as a prebiotic. Early s...

Read the full Gum Arabic monograph →
Sources

Sources & How We Checked

Dietary Fiber Formula'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 59 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.

Selenium 36 references
  1. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington, DC: National Academy Press, 2000. Available at: http://www.nap.edu/books/0309069351/html/.
  2. Brown BG, Zhao XQ, Chait A, et al. Simvastatin and niacin, antioxidant vitamins, or the combination for the prevention of coronary disease. N Engl J Med 2001;345:1583-93. DOI
  3. Trafikowska U, Zachara BA, Wiacek M, et al. Selenium supply and glutathione peroxidase activity in breastfed Polish infants. Acta Paediatr 1996;85:1143-5. PubMed
  4. Duffield-Lillico AJ, Slate EH, Reid ME, et al. Selenium supplementation and secondary prevention of nonmelanoma skin cancer in a randomized trial. J Natl Cancer Inst 2003;95:1477-81.. PubMed
  5. Cheung MC, Zhao XQ, Chait A, et al. Antioxidant supplements block the response of HDL to simvastatin-niacin therapy in patients with coronary artery disease and low HDL. Arterioscler Thromb Vasc Biol 2001;21:1320-6. PubMed
  6. Schiavon R, Freeman GE, Guidi GC, et al. Selenium enhances prostacyclin production by cultured endothelial cells: possible explanation for increased bleeding times in volunteers taking selenium as a dietary supplement. Thromb Res 1984;34:389-96. PubMed
  7. Davila JC, Edds GT, Osuna O, Simpson CF. Modification of the effects of aflatoxin B1 and warfarin in young pigs given selenium. Am J Vet Res 1983;44:1877-83. DOI
  8. Heese HD, Lawrence MA, Dempster WS, Pocock F. Reference concentrations of serum selenium and manganese in healthy nulliparas. S Afr Med J 1988;73:163-5.
  9. Lloyd B, Lloyd RS, Clayton BE. Effect of smoking, alcohol and other factors on the selenium status of a healthy population. J Epidemiol Commun Health 1983;37:213-7. PubMed
  10. Capel ID, Jenner M, Williams DC, et al. The effect of prolonged oral contraceptive steroid use on erythrocyte glutathione peroxidase activity. J Steroid Biochem 1981;14:729-32. PubMed
  11. Contempre B, Dumont JE, Ngo B, et al. Effect of selenium supplementation in hypothyroid subjects of an iodine and selenium deficient area: the possible danger of indiscriminate supplementation of iodine-deficient subjects with selenium. J Clin Endocrinol PubMed
  12. Hofbauer LC, Spitzweg C, Magerstadt RA, Heufelder AE. Selenium-induced thyroid dysfunction. Postgrad Med J 1997;73:103-4. PubMed
  13. Debski B, Milner JA. Dietary selenium supplementation prolongs pentobarbital induced hypnosis. J Nutr Biochem 2004;15:548-53. PubMed
  14. Ishikawa M, Sasaki M, Koiwai K, et al. Inhibition of hepatic mixed-function oxidase enzymes in mice by acute and chronic treatment with selenium. J Pharmacobiodyn 1992;15:377-85. PubMed
  15. Lippmann SM, Klein EA, Goodman PJ, et al. Effect of selenium and vitamin E on risk of prostate cancer and other cancers: the selenium and vitamin E cancer prevention trial (SELECT). JAMA 2009;301:39-51. DOI
  16. Reid SM, Middleton P, Cossich MC, Crowther CA. Interventions for clinical and subclinical hypothyroidism in pregnancy. Cochrane Database Syst Rev 2010;(7):CD007752. PubMed
  17. Vinceti, M., Wei, E. T., Malagoli, C., Bergomi, M., and Vivoli, G. Adverse health effects of selenium in humans. Rev.Environ.Health 2001;16(4):233-251. PubMed
  18. Abrams, C. K., Siram, S. M., Galsim, C., Johnson-Hamilton, H., Munford, F. L., and Mezghebe, H. Selenium deficiency in long-term total parenteral nutrition. Nutr Clin Pract 1992;7(4):175-178. PubMed
  19. Spiller, H. A. and Pfiefer, E. Two fatal cases of selenium toxicity. Forensic Sci Int 8-24-2007;171(1):67-72. PubMed
  20. Negro, R., Greco, G., Mangieri, T., Pezzarossa, A., Dazzi, D., and Hassan, H. The influence of selenium supplementation on postpartum thyroid status in pregnant women with thyroid peroxidase autoantibodies. J Clin Endocrinol.Metab 2007;92(4):1263-1268. PubMed
  21. Alexander, J. Selenium. Novartis.Found.Symp 2007;282:143-149.
  22. Salonen, J. T., Salonen, R., Seppanen, K., Rinta-Kiikka, S., Kuukka, M., Korpela, H., Alfthan, G., Kantola, M., and Schalch, W. Effects of antioxidant supplementation on platelet function: a randomized pair-matched, placebo-controlled, double-blind trial
  23. Kupka, R., Mugusi, F., Aboud, S., Msamanga, G. I., Finkelstein, J. L., Spiegelman, D., and Fawzi, W. W. Randomized, double-blind, placebo-controlled trial of selenium supplements among HIV-infected pregnant women in Tanzania: effects on maternal and chil
  24. Kamble, P., Mohsin, N., Jha, A., Date, A., Upadhaya, A., Mohammad, E., Khalil, M., Pakkyara, A., and Budruddin, M. Selenium intoxication with selenite broth resulting in acute renal failure and severe gastritis. Saudi.J Kidney Dis.Transpl. 2009;20(1):106
  25. Peretz, A., Neve, J., Desmedt, J., Duchateau, J., Dramaix, M., and Famaey, J. P. Lymphocyte response is enhanced by supplementation of elderly subjects with selenium-enriched yeast. Am.J Clin.Nutr. 1991;53(5):1323-1328. PubMed
  26. Kumpulainen, J., Salmenpera, L., Siimes, M. A., Koivistoinen, P., and Perheentupa, J. Selenium status of exclusively breast-fed infants as influenced by maternal organic or inorganic selenium supplementation. Am.J Clin.Nutr. 1985;42(5):829-835. PubMed
  27. Han, L. and Zhou, S. M. Selenium supplement in the prevention of pregnancy induced hypertension. Chin Med J (Engl) 1994;107(11):870-871.
  28. Kiremidjian-Schumacher, L., Roy, M., Wishe, H. I., Cohen, M. W., and Stotzky, G. Supplementation with selenium and human immune cell functions. II. Effect on cytotoxic lymphocytes and natural killer cells. Biol.Trace Elem.Res. 1994;41(1-2):115-127. PubMed
  29. Srivastava, A. K., Gupta, B. N., Bihari, V., and Gaur, J. S. Generalized hair loss and selenium exposure. Vet.Hum.Toxicol. 1995;37(5):468-469.
  30. Sudfeld CR, Aboud S, Kupka R, et al. Effect of selenium supplementation on HIV-1 RNA detection in breast milk of Tanzanian women. Nutrition 2014;30(9):1081-4. PubMed
  31. Rees K, Hartley L, Day C, et al. Selenium supplementation for the primary prevention of cardiovascular disease. Cochrane Database Syst Rev 2013;1:CD009671. PubMed
  32. Thompson PA, Ashbeck EL, Roe DJ, et al. Selenium Supplementation for Prevention of Colorectal Adenomas and Risk of Associated Type 2 Diabetes. J Natl Cancer Inst. 2016;108(12). PubMed
  33. Wichman J, Winther KH, Bonnema SJ, Hegedüs L. Selenium supplementation significantly reduces thyroid autoantibody levels in patients with chronic autoimmune thyroiditis: a systematic review and meta-analysis. Thyroid 2016;26(12):1681-92. PubMed
  34. Vinceti M, Filippini T, Rothman KJ. Selenium exposure and the risk of type 2 diabetes: a systematic review and meta-analysis. Eur J Epidemiol. 2018 Sep;33(9):789-810. Epub 2018 Jul 5. Review. PubMed
  35. Fallah S, Sani FV, Firoozrai M. Effect of contraceptive pill on the selenium and zinc status of healthy subjects. Contraception. 2009;80(1):40-3. PubMed
  36. Malpas CB, Vivash L, Genc S, et al. A Phase IIa Randomized Control Trial of VEL015 (Sodium Selenate) in Mild-Moderate Alzheimer's Disease. J Alzheimers Dis. 2016;54(1):223-232. PubMed

See these in context on the Selenium monograph →

Glucomannan 15 references
  1. Henry DA, Mitchell AS, Aylward J, et al. Glucomannan and risk of oesophageal obstruction. Br Med J 1986;292:591-2. PubMed
  2. Shima K, Tanaka A, Ikegami H, et al. Effect of dietary fiber, glucomannan, on absorption of sulfonylurea in man. Horm Metab Res 1983;15:1-3. PubMed
  3. Villaverde, A. F., Benlloch, S., Berenguer, M., Miguel, Rayon J., Pina, R., and Berenguer, J. Acute hepatitis of cholestatic type possibly associated with the use of glucomannan (amorphophalus konjac). J Hepatol. 2004;41(6):1061-1062. PubMed
  4. Yoshida, M., Vanstone, C. A., Parsons, W. D., Zawistowski, J., and Jones, P. J. Effect of plant sterols and glucomannan on lipids in individuals with and without type II diabetes. Eur.J Clin Nutr. 2006;60(4):529-537. PubMed
  5. Wood, R. J., Fernandez, M. L., Sharman, M. J., Silvestre, R., Greene, C. M., Zern, T. L., Shrestha, S., Judelson, D. A., Gomez, A. L., Kraemer, W. J., and Volek, J. S. Effects of a carbohydrate-restricted diet with and without supplemental soluble fiber
  6. Vanderbeek, P. B., Fasano, C., O'Malley, G., and Hornstein, J. Esophageal obstruction from a hygroscopic pharmacobezoar containing glucomannan. Clin Toxicol.(Phila) 2007;45(1):80-82. PubMed
  7. Bernstein, J. A., Crandall, M. S., and Floyd, R. Respiratory sensitization of a food manufacturing worker to konjac glucomannan. J Asthma 2007;44(8):675-680. PubMed
  8. Shichijo, K., Kobayashi, Y., Fueki, R., Shimoyama, K., and Masaya, M. [2 cases of konjac bronchial asthma found outside the "konnyaku" producing district]. Arerugi 1969;18(2):97-100.
  9. Carabin IG, Lyon MR, Wood S, et al. Supplementation of the diet with the functional fiber PolyGlycoplex is well tolerated by healthy subjects in a clinical trial. Nutr J 2009;8:9. PubMed
  10. Lyon MR, Reichert RG. The effect of a novel viscous polysaccharide along with lifestyle changes on short-term weight loss and associated risk factors in overweight and obese adults: an observational retrospective clinical program analysis. Altern Med Rev
  11. Lyon M, Wood S, Pelletier X, et al. Effects of a 3-month supplementation with a novel soluble highly viscous polysaccharide on anthropometry and blood lipids in nondieting overweight or obese adults. J Hum Nutr Diet 2011;24(4):351-9. PubMed
  12. Han Y, Zhang L, Liu XQ, Zhao ZJ, Lv LX. Effect of glucomannan on functional constipation in children: a systematic review and meta-analysis of randomised controlled trials. Asia Pac J Clin Nutr 2017;26(3):471-7.
  13. Health Canada Safety Alert. Health Canada Advises Canadians that natural health products containing glucomannan may cause serious choking if used with insufficient fluid. January 29, 2010. Alert # RA-110003825. https://healthycanadians.gc.ca/recall-alert-
  14. Mortensen A, Aguilar F, Crebelli, et al. EFSA Panel on Food Additives and Nutrient Sources added to Food. Re-evaluation of konjac gum (E 425 i) and konjac glucomannan (E425 ii) as food additives. EFSA Journal 2017;15(6):4864.
  15. Zhang Y, Aldamarany WAS, Song G, et al. Influence of konjac glucomannan and its derivatives on the oral pharmacokinetics of antimicrobial agent in antibiotics cocktails: Keep vigilant on dietary fiber supplement. Int J Biol Macromol 2023;251:126306. PubMed

See these in context on the Glucomannan monograph →

Gum Arabic 8 references
  1. Jensen CD, Spiller GA, Gates JE, et al. The effect of acacia gum and a water-soluble dietary fiber mixture on blood lipids in humans. J Am Coll Nutr 1993;12:147-54. PubMed
  2. Eltayeb IB, Awad AI, Elderbi MA, Shadad SA. Effect of gum arabic on the absorption of a single oral dose of amoxicillin in healthy Sudanese volunteers. J Antimicrob Chemother 2004;54:577-8. PubMed
  3. Babiker R, Merghani TH, Elmusharaf K, et al. Effects of gum Arabic ingestion on body mass index and body fat percentage in healthy adult females: two-arm randomized, placebo controlled, double-blind trial. Nutr J 2012;11:111. PubMed
  4. Babiker R, Elmusharaf K, Keogh MB, Banaga AS, Saeed AM. Metabolic effect of gum Arabic (Acacia senegal) in patients with type 2 diabetes mellitus (T2DM): randomized, placebo controlled double blind trial. Functional Foods in Health and Disease. 2017;7(3): DOI
  5. Beneke CE, Viljoen AM, Hamman JH. Polymeric plant-derived excipients in drug delivery. Molecules. 2009;14(7):2602-20. PubMed
  6. Ali NE, Kaddam LA, Alkarib SY, et al. Gum Arabic (Acacia Senegal) Augmented Total Antioxidant Capacity and Reduced C-Reactive Protein among Haemodialysis Patients in Phase II Trial. Int J Nephrol. 2020;2020:7214673.
  7. Mortensen A, Aguilar F, Crebelli R, et al. Re-evaluation of acacia gum (E 414) as a food additive. EFSA J. 2017;15(4):e04741. PubMed
  8. Larson R, Nelson C, Korczak R, et al. Acacia Gum Is Well Tolerated While Increasing Satiety and Lowering Peak Blood Glucose Response in Healthy Human Subjects. Nutrients 2021;13(2):618. PubMed

See these in context on the Gum Arabic 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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