Dr. Mercola Biothin Berberine with Chromium – Supports Healthy Metabolic Function – Enhanced Absorption – Non-GMO, Gluten-Free & Soy-Free – 30 Capsules (30 Servings)

Customers find the nutritional supplement effective for blood sugar control and weight loss, with one noting it helps lower sugar levels. Moreover, the product receives positive feedback for its quality and value for money. Additionally, customers report reduced cravings, with one mentioning a significant decrease in carb cravings. However, some customers experience upset stomach as a side effect.