Abstract
Phaseolus vulgaris may reduce appetite, body weight and gut microbiota and has been shown to contribute to the development of obesity, type 2 diabetes and non-alcoholic fatty liver disease. This study was conducted to investigate the impact of P. vulgaris extract (PVE) on obesity and obesity-associated metabolic syndromes, and determine whether the protective effects of PVE were associated with modulation of gut microbiota. C57BL/6J mice were fed low-fat diet, high-fat diet or high-fat diet supplemented with PVE of 50 mg/kg. The composition of gut microbiota was analysed by 16S rDNA sequencing. Our results showed that PVE treatment reduced body weight and improved hepatic steatosis and insulin resistance in high-fat diet-fed mice. PVE administration increased the relative abundance of Bifidobacterium, Lactobacillus and Akkermansia at the genus level. In conclusion, PVE protects from diet-induced obesity, insulin resistance and hepatic steatosis, and these beneficial effects were associated with the PVE-related modulation of gut microbiota.
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