Figure 1

Anti-obesity effects of berberine and metformin in high-fat diet-induced obese rats.
(a) Body weight; (b) Adiposity index, calculated according to the following formula: 100 × (epididymal fat weight + perirenal fat weight)/body weight. Differences were assessed by one-way ANOVA, *P < 0.05, **P < 0.01, **P < 0.001.