On September 9, 2021, the FDA and FTC (Federal Trade Commission) issued Warning Letters to 10 companies for marketing dietary supplements with claims that they could cure, treat, mitigate, or prevent diabetes. According to the FDA, the products were being marketed as unapproved new drugs and had not been evaluated by the agency as safe and effective for those intended uses.

The agencies cited claims appearing on company websites, social media pages, and online marketplace listings. Several of the products were sold online through Amazon and Walmart. Examples of statements used to promote some of the products included “help control diabetes,” “fight insulin resistance,” “reduce blood glucose,” or “control your blood sugar now.”

(See ConsumerLab’s article about supplements and foods for lowering blood sugar. Also see the Cinnamon Supplements and Spices Review and Berberine and Goldenseal Supplements Review for tests of related products.)

For more information, use the links below to read the full Warning Letter for each company.

• Live Good Inc. - Berry Gen Sugar Control
• Pharmaganics LLC - Diabetes Doctor Pre-Diabetes, Diabetes Doctor Blood Sugar 24 Hour
• Lysulin, Inc. - Lysulin Weight Loss Shake, Lysulin Diabetes and Prediabetes Chewables, Lysulin Diabetes and Prediabetes Liquid, Lysulin Diabetes and Prediabetes Capsules, Lysulin Diabetes and Prediabetes Powder
• Nuturna International LLC - Diabetic Support Formula
• Phytag Labs - GLUCOTYPE2
• Ar-Rahman Pharm LLC - Diabetes Support
• Metamune Inc. - DiabetesSupport
• Holistic Healer & Wellness Center, Inc. - Diabalance Diabetes Supplement
• Radhanite, LLC d/b/a Curalife Ltd - CuraLin
• Aceva, LLC - Sugar Balance

The FTC instructed the companies to stop making unsupported claims that products could prevent, treat, or cure diabetes. The FDA requested that the companies respond in writing within 15 working days of receipt of the Warning Letters to detail the steps they will take to correct the violations.

See related recalls and warnings: