Hormonal
Garcinia cambogia (Hydroxycitric acid/HCA) supplementation reduces visceral fat and improves fasting blood glucose and insulin sensitivity in overweight/obese individuals.
Garcinia cambogia (HCA) at 1,000 mg/day may help reduce visceral fat and improve blood sugar in overweight people, but it is not a magic bullet. It works by blocking fat synthesis and suppressing appetite.
In a randomized double-blind human trial, the group consuming 1,000 mg/day of HCA for 12 weeks showed significant reductions in body weight and visceral fat compared to placebo.
Why this rating
The paper cites specific RCTs (Hayamizu et al., 2003; Preuss et al., 2004) but notes that long-term safety and efficacy need further study.
Source
Literature Review on the Effects of Functional Food Ingredients for Blood Glucose and Body Fat Reduction on Glycemic Control in Insulin Resistance and Diabetes
Nohyeon Kim et al. · Journal of the Korean Society of Food Science and Nutrition · 2025
DOI 10.3746/jkfn.2025.54.10.805
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