5-HTPand Appetite & Cravings.
Evidence gradeA
ImpactModerate
Confidencehigh
Imported rating. This grade comes from SuppCo and has not been independently reviewed. It describes research, not a product, and it is not medical advice.
The rating
- Direction
- Favourable
- Rated by
- SuppCo
- Observed
- 28 September 2026
Studies behind it
Preliminary fMRI findings concerning the influence of 5‐HTP on food selectionStephanos Ioannou · Brain and Behavior2016Hypothalamic serotonin in control of eating behavior, meal size, and body weightS. Leibowitz · Biological Psychiatry1998Effects of oral 5-hydroxy-tryptophan on energy intake and macronutrient selection in non-insulin dependent diabetic patientsC. Cangiano · International Journal of Obesity1998