Separate hunger from nutritional intake
NHS guidance suggests smaller, more frequent meals, nourishing snacks and energy-dense additions when healthy weight gain is appropriate. Drinks between meals may help, while filling up on fluid before eating can reduce intake. These measures aim to improve nourishment even when appetite remains modest. [1]
A booster claim needs evidence for the actual cause
A vitamin or herb cannot be assumed to reverse poor appetite caused by illness, a medicine or emotional distress. FDA does not approve dietary supplements for effectiveness before sale. A product marketed to make you hungry therefore needs more support than testimonials or an ingredient’s normal nutritional function. [2]
Investigate an ongoing change
Imagine meals have become smaller and weight is falling without intention. Arrange clinical assessment and discuss a dietitian-supported plan rather than relying on an appetite capsule. A balanced meal pattern and appropriate activity may help, but persistent weight loss should not be explained away as simply needing more willpower or another supplement. [1]
| Situation | Appropriate distinction |
|---|---|
| A symptom | Identify its cause |
| A marketing promise | Check the measured outcome |
| A treatment change | Review suitability and follow-up |

Sources for this article
- Healthy ways to gain weight - NHS
Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product. - Questions and Answers on Dietary Supplements | FDA
Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product.