Garcinia supplements come from the rind of *Garcinia cambogia*, a tropical fruit. The main active ingredient is hydroxycitric acid (HCA). HCA works partly by blocking an enzyme that turns extra carbohydrates into stored fat. This process may help the body lean on existing fat stores for energy and curb hunger signals.
Most people time their dose 30 to 60 minutes before meals, hoping to cut cravings and support their body composition targets.
Important cautions apply. Garcinia may interact with diabetes drugs and some antidepressants, including SSRIs and MAOIs. Rare reports note liver-related effects. Pregnant or breastfeeding women should avoid it unless a professional advises otherwise.