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Dietary supplement

Oat Seed Ingredients & Drug Interactions

by Herb Pharm

Oat Seed label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Oat Seed 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

Oat Seed is a dietary supplement by Herb Pharm with 1 active ingredient. Its ingredients are commonly taken for lowering cholesterol, heart and digestive health, soothing itchy or irritated skin.Based on those ingredients, 86 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Oat Milky Seed Extract, Fresh, Undried. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Oat Seed by Herb Pharm

Ask about any prescription or over-the-counter medication and we check it for interactions with Oat Seed by Herb Pharm — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Oat Seed by Herb Pharm

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 Aug 27, 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 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: oat milky seed extract made from fresh, undried oats. The extract also contains cane alcohol and distilled water as inactive ingredients.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Oats's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: Nervous system restore and tone.
  • We looked for evidence on: Anxiety, Stress, Nervousness, Hyperexcitability.
  • The closest evidence on file: Oats is rated "Insufficient Reliable Evidence To Rate" for Anxiety (Natural Medicines).

Oat seed extract is likely effective for dyslipidemia (abnormal blood cholesterol and triglycerides) and coronary heart disease prevention. The evidence supporting these uses comes from research on oats' effects on cholesterol and heart health.

The evidence, ingredient by ingredient Oats

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 1 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.

Oats are generally well tolerated when taken by mouth. The most common side effects are digestive: bloating, flatulence, abdominal distension, and unpleasant taste — these are usually related to the fiber content and tend to fade as your body adjusts.

Starting with a low dose and increasing it slowly can help minimize these effects. Oat food is considered likely safe in pregnancy and while breastfeeding.

Concentrated supplement forms like this one have been studied less, so there isn't enough data to know for certain — talk with your doctor or pharmacist for personalized advice if you're pregnant or nursing.

Side effects, ingredient by ingredient Oats

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 — Oats.
  • 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.

Before you take this product, double-check your exact medications with your doctor or pharmacist if you take insulin or any antidiabetes drugs. Both carry Moderate-severity interactions with oat seed extract that could lower your blood sugar beyond your target.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Oat seed extract is a solid choice if you're looking to support cholesterol and heart health and you don't take diabetes medications. If you're on insulin or any blood-sugar-lowering drug, you'll need to check with your doctor or pharmacist first — oats can enhance their effect and lower your blood sugar too much.

Either way, start low and increase gradually to let your digestion adjust.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jan 24, 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 Oat Seed, straight from the product label.

Brand Herb Pharm
Barcode (UPC) 090800000003
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Jan 24, 2024
DSLD ID 307617
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), 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 Oat Seed by Herb Pharm, 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:
0.7 mL
Maximum serving Sizes:
0.7 mL
Servings per container
42
UPC/BARCODE
090800000003
IngredientAmount% DV
Oat Milky Seed Extract, Fresh, Undried647 mg--

Other ingredients: Cane Alcohol, Water, Distilled

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.
Suggested/Recommended/Usage/Directions

Suggested Use Shake well before using Adults: Add 1 squeeze of the dropper bulb to 2 oz. of water or juice, 2 to 5 times per day. Best taken between meals.

Precautions

Keep out of the reach of children

Storage

Store away from heat & light

Formula

Avena sativa

Oat Seed liquid extract

Formulation

Nervous system Restore & tone

Gluten-free

Certified organic by Organic Certifiers

Seals/Symbols

USDA Organic

FDA Statement of Identity

Herbal Supplement

FDA Disclaimer Statement

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

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

See for yourself

Oat Seed by Herb Pharm label

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

Oat Seed 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 Oat Seed by Herb Pharm

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container42 Amounts shown are per serving.

Oat Milky Seed Extract, Fresh, Undried

Interacts with
86 drugs
647 mg per serving

Oats are a well-studied whole grain whose soluble fiber (beta-glucan) can help lower cholesterol and support heart health when eaten regularly. As a f...

Oat Milky Seed Extract, Fresh, Undried monograph & interactions

Other (inactive) ingredients: Cane Alcohol, Water, Distilled. These complete the product’s ingredient list but are not active constituents.

Interaction report

Oat Seed by Herb Pharm Drug Interactions

Want to check YOUR meds against Oat Seed?

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

Oat Milky Seed Extract, Fresh, Undried 86

Individual Drug Interactions

The ingredients in Oat Seed interact with 86 drugs. Click any drug to see the details.

1 of the 1 ingredient in Oat Seed interact with drugs. Each result below shows which ingredient is responsible. Oat Milky Seed Extract, Fresh, Undried

Each ingredient & the kinds of drugs it affects

For each ingredient in Oat Seed 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.

Oat Milky Seed Extract, Fresh, Undried2 drug types · 86 drugs

Antidiabetes Drugs

Theoretically, oats may have additive effects with antidiabetic agents and might increase the risk of hypoglycemia.
Consuming oats can decrease blood glucose in patients with diabetes. In those who require insulin, taking oats 100 grams daily for 2 days reduces the insulin dose required to achieve metabolic control.

Likelihood Possible Evidence D
Insulin

Concomitant use of oats and insulin might increase the risk of hypoglycemia.
In patients with insulin-dependent type 2 diabetes, taking oats 100 grams daily for 2 days reduces the insulin dose required to achieve metabolic control.

Likelihood Possible Evidence B
Oat Milky Seed Extract, Fresh, Undried full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Oat Seed, from the product label.

Herb Pharm

See all Herb Pharm products
Name
Herb Pharm
City
Williams
State
OR
ZipCode
97544
Phone Number
800-348-4372
Web Address
www.herb-pharm.com
Pharmacist Counseling Corner

Oat Seed by Herb Pharm: Common Questions

Does Oat Seed by Herb Pharm interact with any medications?
Yes. Based on its ingredients, Oat Seed 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?
Oat Seed contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 give me digestive side effects?
Some people experience bloating, gas, abdominal distension, or an unpleasant taste, especially when starting out. These are related to the fiber in oats and usually settle down as your body gets used to it. Starting with a smaller dose and working up slowly helps a lot.
Is this safe during pregnancy or breastfeeding?
Oats as a food are considered likely safe in both pregnancy and breastfeeding. This is a concentrated extract form, though, and hasn't been studied as thoroughly. There isn't enough data to say for certain, so talk with your doctor or pharmacist about whether it's right for you.
What does oat seed extract actually do?
Research shows it's likely effective for managing dyslipidemia — high cholesterol and triglycerides — and for supporting heart health. The benefits are tied to oats' well-studied effects on cholesterol.
Can I take this if I'm on blood pressure medication?
The data we hold doesn't show interactions between oat seed extract and blood pressure drugs. That said, check your specific medications using the search tool on this page, and if you have any concerns, run it by your doctor or pharmacist.
How much of an extract do I actually get in a dose?
The product facts don't specify the extract strength or dose per serving — check the label on the bottle for that information, or ask your pharmacist.

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

Not sure if Oat Seed 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.

Oat Seed label
Go deeper

The Full Monographs Behind Oat Seed’s Ingredients

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

Herb & supplement monograph

Oats

Interacts with 86 drugs

Oats are a well-studied whole grain whose soluble fiber (beta-glucan) can help lower cholesterol and support heart health when eaten regularly. As a food, oats are safe for most people, and...

Read the full Oats monograph →
Sources

Sources & How We Checked

Oat Seed'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 13 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.

Oats 13 references
  1. Cooper SG, Tracey EJ. Small-bowel obstruction caused by oat-bran bezoar. N Engl J Med 1989;320:1148-9. DOI
  2. Pick ME, Hawrysh ZJ, Gee MI, et al. Oat bran concentrate bread products improve long-term control of diabetes: a pilot study. J Am Diet Assoc 1996;96:1254-61. PubMed
  3. Braaten JT, Scott FW, Wood PJ, et al. High beta-glucan oat bran and oat gum reduce postprandial blood glucose and insulin in subjects with and without type 2 diabetes. Diabet Med 1994;11:312-8.
  4. Rosario PG, Gerst PH, Prakash K, Albu E. Dentureless distention: oat bran bezoars cause obstruction. J Am Geriatr Soc 1990;38:608. PubMed
  5. Food and Drug Administration. Food labeling: health claims: oats and coronary heart disease. Fed Regist 1996;61:296-313.
  6. Foulke J. FDA Allows Whole Oat Foods To Make Health Claim on Reducing the Risk of Heart Disease. FDA Talk Paper. 1997. Available at: http://www.fda.gov/bbs/topics/ANSWERS/ANS00782.html.
  7. Chandalia M, Garg A, Lutjohann D, et al. Beneficial effects of high dietary fiber intake in patients with type 2 diabetes mellitus. N Engl J Med 2000;342:1392-8. PubMed
  8. Lembo A, Camilleri M. Chronic constipation. N Engl J Med 2003;349:1360-8. . PubMed
  9. De Paz Arranz S, Perez Montero A, Remon LZ, Molero MI. Allergic contact urticaria to oatmeal. Allergy 2002;57:1215. . PubMed
  10. Delgado G, Kleber ME, Krämer BK, et al. Dietary intervention with oatmeal in patients with uncontrolled type 2 diabetes mellitus - A crossover study. Exp Clin Endocrinol Diabetes. 2019;127(9):623-629. PubMed
  11. Sobhan M, Hojati M, Vafaie SY, Ahmadimoghaddam D, Mohammadi Y, Mehrpooya M. The efficacy of colloidal oatmeal cream 1% as add-on therapy in the management of chronic irritant hand eczema: A double-blind study. Clin Cosmet Investig Dermatol. 2020;13:241-25
  12. Hou Q, Li Y, Li L, Cheng G, Sun X, Li S, Tian H. The metabolic effects of oats intake in patients with type 2 diabetes: A systematic review and meta-analysis. Nutrients. 2015;7(12):10369-87. PubMed
  13. González-Afonso M, Cañas JA, Sastre B, et al. A Case of Anaphylaxis After Ingestion of Oats: Research Into New Allergens. J Investig Allergol Clin Immunol 2022;32(6):506-508. PubMed

See these in context on the Oats 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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