Weight & Blood Sugar
Weight Loss
Weight Loss reviews
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
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.
See a doctor if…
You're considering weight loss with a medical condition or medication, or have unexplained weight changes. A doctor can discuss safe options, including prescription treatments.
Medical disclaimer →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.