Effects of acylated and nonacylated anthocyanins extracts on gut metabolites and microbiota in diabetic Zucker rats: A metabolomic and metagenomic study

•Dysbiosis of gut microbiota and metabolites in diabetic rat were observed.•Anthocyanins were extracted from purple potato and bilberry.•Acylated and nonacylated anthocyanins increased cecal sugars.•Acylated anthocyanins modulated gut oxidative phosphorylation and purine metabolism.•50 mg/kg acylated anthocyanins increased cecal short-chain fatty acids.