摘要：Adzuki bean consumption has many health benefits, but its effects on obesity and regulating gut microbiota imbalances induced by a high-fat diet (HFD) have not been thoroughly studied. Mice were fed a low-fat diet, a HFD, and a HFD supplemented with 15% adzuki bean (HFD-AB) for 12 weeks. Adzuki bean supplementation significantly reduced obesity, lipid accumulation, and serum lipid and lipopolysaccharide (LPS) levels induced by HFD. It also mitigated liver function damage and hepatic steatosis. In particular, adzuki bean supplementation improved glucose homeostasis by increasing insulin sensitivity. In addition, it significantly reversed HFD-induced gut microbiota imbalances. Adzuki bean significantly reduced the ratio of
Firmicutes/
Bacteroidetes (
F/
B); enriched the occurrence of
Bifidobacterium,
Prevotellaceae,
Ruminococcus_1,
norank_f_Muribaculaceae,
Alloprevotella,
Muribaculum,
Turicibacter,
Lachnospiraceae_NK4A136_group, and
Lachnoclostridium; and returned HFD-dependent taxa (
Desulfovibrionaceae,
Bilophila,
Ruminiclostridium_9, Blautia, and
Ruminiclostridium) back to normal status. PICRUSt2 analysis showed that the changes in gut microbiota induced by adzuki bean supplementation may be associated with the metabolism of carbohydrates, lipids, sulfur, and cysteine and methionine; and LPS biosynthesis; and valine, leucine, and isoleucine degradation.
