Weight & Blood Sugar
Weight Loss
Weight loss supplements, programs and products, reviewed with realistic expectations. This is the category regulators watch most closely.
What we cover
- Weight loss and appetite supplements
- Fiber supplements such as glucomannan
- Green tea extract, caffeine and "fat burners"
- How supplements compare with prescription GLP-1 medications
Weight Loss reviews
We're researching our first weight loss reviews now. Every review covers the ingredients and doses, an evidence rating for each, safety, price per serving and the refund policy. Get notified when they go live.
Common ingredients and the evidence
| Ingredient or option | Used for | Evidence | Notes |
|---|---|---|---|
| Glucomannan (fiber) | Fullness, modest weight loss | Limited | Take with plenty of water. |
| Caffeine | Metabolism | Limited | Small effect; watch total intake. |
| Green tea extract | Fat burning | Limited | Linked to rare liver injury, especially on an empty stomach. |
| Garcinia cambogia | Weight loss | Insufficient | Trials show little or no effect. |
Ratings follow our evidence scale and are updated as new research appears.
Claims to be careful with. No supplement works like prescription GLP-1 medications. Be skeptical of claims like "lose 30 pounds in 30 days" or "no diet or exercise needed." The FDA has found hidden drugs in some weight loss products.
These statements have not been evaluated by the Food and Drug Administration. Products discussed are not intended to diagnose, treat, cure, or prevent any disease.