ConsumerLab.com uses JavaScript to provide the best possible experience for our content, but your browser has it disabled. Learn how to enable it here.

About ConsumerLab.com

Search term may appear only in full report available to members. Join now for full access.

Product Review

Cinnamon Supplements and Spices Review

CAUTION: Limit Use of Some Cinnamon Due to Liver Toxin. See Our Findings and Top Picks.

Cinnamon Review 2025

CL Answer

Which supplements and foods can help lower or control blood sugar?

Find out which supplements can help lower or control blood sugar. Supplements including turmeric/curcumin, fiber, cinnamon, and ginseng are believed to help lower blood sugar.

Blood Sugar Control -- blood test and blood sugar chart

News Release

October 30, 2025

ConsumerLab.com Reveals Key Safety Tips for Cinnamon Users: What You Need to Know About Toxic Compounds and Health Benefits

October 30, 2025 — Cinnamon is a popular spice and supplement, but new testing by ConsumerLab.com highlights important safety considerations for regular users. Dr. Tod Cooperman, president of ConsumerLab.

News Release

December 11, 2020

Caution With Cinnamon: ConsumerLab Tests Reveal High Amounts of Toxin in Some Supplements and Spices

White Plains, New York, December 11, 2020 — Cinnamon is a favorite spice that may modestly help lower blood sugar levels, likely due beneficial proanthocyanidins (PACs).

News Release

January 05, 2016

Cinnamon Spices and Supplements Found to Vary Widely in Levels of Potentially Helpful and Harmful Compounds Reports ConsumerLab.com

White Plains, New York, January 5, 2016 — Cinnamon supplements may be helpful for controlling blood sugar in people with type 2 diabetes or prediabetes, possibly due to compounds known as proanthocyanidins or PACs.