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Dietary supplement

Cinnamon 350 mg Ingredients & Drug Interactions

by Natures Plus Herbal Actives

Cinnamon 350 mg label
See full label image
Capsule 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 Cinnamon 350 mg 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

Cinnamon 350 mg is a dietary supplement by Natures Plus Herbal Actives with 1 active ingredient. Its ingredients are commonly taken for blood sugar support, digestive upset, antioxidant support.Based on those ingredients, 442 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cinnamon. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Cinnamon 350 mg by Natures Plus Herbal Actives

Ask about any prescription or over-the-counter medication and we check it for interactions with Cinnamon 350 mg by Natures Plus Herbal Actives — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Cinnamon 350 mg by Natures Plus Herbal Actives

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 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: cassia cinnamon at 350 mg per capsule. The inactive ingredients are microcrystalline cellulose, silica, magnesium stearate, stearic acid, vegetable cellulose, and purified water — standard capsule fillers and binders.

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 Cassia Cinnamon's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: nutritional support for healthy blood sugar levels.
  • We looked for evidence on: Diabetes, Impaired glucose tolerance (prediabetes), Dyslipidemia, Obesity, metabolic health, glucose metabolism.
  • The closest evidence on file: Cassia Cinnamon is rated "Insufficient Reliable Evidence To Rate" for Diabetes (Natural Medicines).
  • Also on file: Cassia Cinnamon is rated "Insufficient Reliable Evidence To Rate" for Dyslipidemia, Obesity, Impaired glucose tolerance (prediabetes).

The evidence we hold for cassia cinnamon doesn't establish it as effective for any of the conditions listed — amenorrhea, angina, common cold, diabetes, diarrhea, and dyslipidemia (abnormal cholesterol or triglycerides) all show insufficient reliable evidence to rate. That means the research to date hasn't proven benefit for these uses.

The evidence, ingredient by ingredient Cassia Cinnamon

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.

Food amounts of cinnamon are generally well tolerated. At supplement doses — especially high doses over a long time — there's concern about liver harm from coumarin, cinnamon's natural compound.

In clinical trials, doses up to 12 grams daily for three months did not significantly raise liver enzyme markers, but very high coumarin doses (50–7,000 mg daily) can cause liver problems that improve when you stop. A small number of trial participants reported a rash, and one case of eyelid rash was linked to systemic contact dermatitis to cinnamon in the diet — it cleared within five days of stopping.

One patient reported a low blood sugar seizure during a trial, though it's unclear if cinnamon caused it. During pregnancy and breastfeeding, food amounts are likely safe, but avoid medicinal or high-dose supplement amounts — data isn't there to know either way.

Side effects, ingredient by ingredient Cassia Cinnamon

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 — Cassia Cinnamon.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 443 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 your medications before starting if you take diabetes drugs (blood sugar medicines) or hepatotoxic drugs (medications that can harm the liver) — cassia cinnamon may add to both effects and require dose adjustments.

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.

Cassia cinnamon at this dose is generally well tolerated, but check with your pharmacist if you take diabetes or liver-toxic medications — dose adjustments may be needed. The evidence doesn't support it for the conditions commonly listed.

Talk to your pharmacist before you start, especially if you take blood sugar or liver-affecting drugs.

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 Apr 25, 2019.

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 Cinnamon 350 mg, straight from the product label.

Brand Natures Plus Herbal Actives
Barcode (UPC) 097467071469
Net contents 60 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Apr 25, 2019
DSLD ID 200641
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy 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 Cinnamon 350 mg by Natures Plus Herbal Actives, 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:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
UPC/BARCODE
097467071469
IngredientAmount% DV
Cinnamon350 mg--

Other ingredients: Microcrystalline Cellulose, Silica, Magnesium Stearate, Stearic Acid, Vegetable Cellulose, purified Water

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.
General Statements

Nutritional Support for Healthy Blood Sugar Levels in those individuals already within normal ranges.

Guaranteed Maximum Potency: Each Herbal Actives formula is scientifically standardized to the highest level of active principles.

HerbaShield: An exclusive purity and safety system including light-resistant bottle, airtight inner seal, moisture-absorbing packet, tamper-evident safety cap and tamper-proof full bottle seal.

Formula

Each Herbal Actives Cinnamon capsule, providing the greatest concentration of active botanical principles, maximizes the synergistic benefits of the whole bark, which naturally contains bioactive polymeric polyphenols, including trimeric and tetrameric A-type polymers.

20% Polyphenols

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement offering the consistent benefits of exact potency, one capsule daily or as recommended by your health care professional.

Precautions

Note: If you are pregnant or nursing, consult your health care professional before using any herbal product.

Printed HerbaShield inner seal and full bottle seal. Do not use if either seal is missing or broken.

Keep out of reach of children.

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.

Formulation

This is not a prescription product. It is a dietary supplement made with the highest possible quality standards.

Prescription quality

Gluten Free

Gluten Free

Free from artificial colors and preservatives. Free from the common allergens yeast, wheat, corn, soy and milk.

Hypo-allergenic

Vegetarian

Brand IP Statement(s)

Herbal Actives is a registered trademark of Natural Organics, Inc. in the US and/or other countries.

HerbaShield

Vcaps is a trademark of Capsugel

Natural Organics

FDA Statement of Identity

Standardized Botanical Supplement

Seals/Symbols

Guaranteed Maximum Potency

Storage

Keep tightly closed in a cool, dry place.

General

PRODUCT NO. 7146 LBL. 1137423

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

See for yourself

Cinnamon 350 mg by Natures Plus Herbal Actives label

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

Cinnamon 350 mg 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 Cinnamon 350 mg by Natures Plus Herbal Actives

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

Serving size1 Capsule(s) Dosage formCapsule Amounts shown are per serving.

Cinnamon

Interacts with
442 drugs
350 mg per serving Form: C. cassia bark extract, Cinnamomum zeylanicum, Polyphenols

Cassia cinnamon is the common, inexpensive cinnamon used in cooking, and it is also taken as a supplement, most often for blood sugar support. The evi...

Cinnamon monograph & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Silica, Magnesium Stearate, Stearic Acid, Vegetable Cellulose, Purified Water. These complete the product’s ingredient list but are not active constituents.

Interaction report

Cinnamon 350 mg by Natures Plus Herbal Actives Drug Interactions

Want to check YOUR meds against Cinnamon 350 mg?

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
442Drugs
442 Moderate

Ingredients driving the most interactions

Cinnamon 442

Individual Drug Interactions

The ingredients in Cinnamon 350 mg interact with 442 drugs. Click any drug to see the details.

1 of the 1 ingredient in Cinnamon 350 mg interact with drugs. Each result below shows which ingredient is responsible. Cinnamon

Each ingredient & the kinds of drugs it affects

For each ingredient in Cinnamon 350 mg 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.

Cinnamon2 drug types · 442 drugs

Antidiabetes Drugs

Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Cassia cinnamon may lower blood glucose levels, and have additive effects in patients treated with antidiabetic agents. Dose adjustments to diabetes medications might be necessary.

Likelihood Possible Evidence B
Hepatotoxic Drugs

Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
There is some concern that ingesting large amounts of cassia cinnamon for an extended duration might cause hepatotoxicity in some people. Cassia cinnamon contains coumarin, which can cause hepatotoxicity in animal models. In humans, very high doses of coumarin from 50-7000 mg/day can result in hepatotoxicity that resolves when coumarin use is discontinued. Lower amounts might also cause liver problems in sensitive people, such as those with liver disease or those taking potentially hepatotoxic agents.

Likelihood Possible Evidence D
Cinnamon full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Cinnamon 350 mg, from the product label.

Natures Plus Herbal Actives

See all Natures Plus Herbal Actives products
Name
Natural Organics Laboratories, Inc. makers of Nature's Plus
Street Address
9500 New Horizons Blvd.
City
Amityville
State
New York
ZipCode
11701
Web Address
www.naturesplus.com
Pharmacist Counseling Corner

Cinnamon 350 mg by Natures Plus Herbal Actives: Common Questions

Does Cinnamon 350 mg by Natures Plus Herbal Actives interact with any medications?
Yes. Based on its ingredients, Cinnamon 350 mg has a known interaction with 442 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Cinnamon 350 mg 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.
Can I take this while pregnant or breastfeeding?
Food amounts of cinnamon are likely safe during pregnancy and lactation, but avoid medicinal or high-dose supplement amounts — there isn't enough safety data to know either way. Talk with your doctor or pharmacist for personalized advice.
Does this product actually help with diabetes or cholesterol?
The evidence we hold doesn't establish cinnamon as effective for diabetes, cholesterol problems, or the other conditions listed. You'd want to rely on your prescribed medications and talk with your doctor about whether this is right for you.
What are the side effects?
A small number of trial participants reported a rash. One person developed contact dermatitis to cinnamon in food, which cleared a few days after stopping. One trial participant reported a low blood sugar seizure, though it's unclear if cinnamon caused it.
Is there a risk to my liver if I take this long-term?
Food amounts are generally safe, but supplement doses — especially high doses over time — carry concern about liver harm from coumarin, a natural cinnamon compound. Clinical trials at doses up to 12 grams daily for three months didn't significantly raise liver enzyme markers, but very high coumarin doses can cause liver problems.
What inactive ingredients are in this capsule?
The capsule contains microcrystalline cellulose, silica, magnesium stearate, stearic acid, vegetable cellulose, and purified water — all standard fillers and binders.

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

Not sure if Cinnamon 350 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Cinnamon 350 mg label
Go deeper

The Full Monographs Behind Cinnamon 350 mg’s Ingredients

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

Herb & supplement monograph

Cassia Cinnamon

Interacts with 442 drugs

Cassia cinnamon is the common, inexpensive cinnamon used in cooking, and it is also taken as a supplement, most often for blood sugar support. The evidence for its health benefits is mixed a...

Read the full Cassia Cinnamon monograph →
Sources

Sources & How We Checked

Cinnamon 350 mg'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 20 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.

Cassia Cinnamon 20 references
  1. Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
  2. Khan A, Safdar M, Ali Khan M, et al. Cinnamon improves glucose and lipids of people with type 2 diabetes. Diabetes Care 2003;26:3215-8. PubMed
  3. De Benito V, Alzaga R. Occupational allergic contact dermatitis from cassia (Chinese cinnamon) as a flavouring agent in coffee. Contact Dermatitis 1999;40:165. PubMed
  4. Drake TE, Maibach HI. Allergic contact dermatitis and stomatitis caused by a cinnamic aldehyde-flavored toothpaste. Arch Dermatol 1976;112:202-3.
  5. Press release. Cinnamon capsules to reduce blood sugar are medicinal products! Efficacy has not been scientifically proven - some products contain high levels of coumarin. Federal Institute of Risk Assessment (BfM), Germany, November 11, 2006. Available a
  6. Felter SP, Vassallo JD, Carlton BD, Daston GP. A safety assessment of coumarin taking into account species-specificity of toxicokinetics. Food Chem Toxicol 2006;44:462-75. PubMed
  7. Crawford P. Effectiveness of cinnamon for lowering hemoglobin A1C in patients with type 2 diabetes: a randomized, controlled trial. J Am Board Fam Med 2009;22:507-12. PubMed
  8. Akilen, R., Tsiami, A., Devendra, D., and Robinson, N. Glycated haemoglobin and blood pressure-lowering effect of cinnamon in multi-ethnic Type 2 diabetic patients in the UK: a randomized, placebo-controlled, double-blind clinical trial. Diabet.Med. 2010; PubMed
  9. Lu T, Sheng H Wu J Cheng Y Zhu J Chen Y. Cinnamon extract improves fasting blood glucose and glycosylated hemoglobin level in Chinese patients with type 2 diabetes. Nutr Res. 2012;32(6):408-412. PubMed
  10. Choi, J., Lee, K. T., Ka, H., Jung, W. T., Jung, H. J., and Park, H. J. Constituents of the essential oil of the Cinnamomum cassia stem bark and the biological properties. Arch Pharm Res 2001;24(5):418-423.
  11. Altschuler JA, Casella SJ, MacKenzie TA, Curtis KM. The effect of cinnamon on A1C among adolescents with type 1 diabetes. Diabetes Care 2007;30(4):813-6. PubMed
  12. Stoecker BR, Zhan Z, Luo R, et al. Cinnamon extract lowers blood glucose in hyperglycemic subjects. FASEB J. 2010;22:722.1 (Abstract only). DOI
  13. Admani S, Hill H, Jacob SE. Cinnamon Sugar Scrub Dermatitis: "Natural" Is Not Always Best. Pediatr Dermatol. 2017;34(1):e42-e43. PubMed
  14. Isaac-Renton M, Li MK, Parsons LM. Cinnamon spice and everything not nice: many features of intraoral allergy to cinnamic aldehyde. Dermatitis. 2015;26(3):116-21. PubMed
  15. Vandersall A, Katta R. Eyelid dermatitis as a manifestation of systemic contact dermatitis to cinnamon. Dermatitis. 2015 Jul-Aug;26(4):189. PubMed
  16. Wickenberg J, Lindstedt S, Nilsson J, Hlebowicz J. Cassia cinnamon does not change the insulin sensitivity or the liver enzymes in subjects with impaired glucose tolerance. Nutr J 2014 Sep 24;13:96. PubMed
  17. Brancheau D, Patel B, Zughaib M. Do cinnamon supplements cause acute hepatitis? Am J Case Rep 2015;16:250-4. PubMed
  18. Shekarchizadeh-Esfahani P, Heydarpour F, Izadi F, Jalili C. The effect of cinnamon supplementation on liver enzymes in adults: A systematic review and meta-analysis of randomized controlled trials. Complement Ther Med 2021;58:102699. PubMed
  19. Bernaola J, Valverde-Monge M, Otal-Buesa M, Cullen D, Heras-Mendaza F. Cinnamon allergic contact cheilitis. Contact Dermatitis 2023;88(5):418-419. PubMed
  20. Patel K, Howard M, Tate B. Cheilitis caused by allergic contact dermatitis to cinnamon in chai tea: A case report. Contact Dermatitis 2023;88(3):239-240. PubMed

See these in context on the Cassia Cinnamon 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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