
Keywords: α-Aminoadipic acid; Branched-chain amino acids; Insulin sensitivity; Metabolic syndrome; Vitamin D; 1,25(OH)2D2; 1,25-dihydroxyvitamin D2; 1,25(OH)2D3; 1,25-dihydroxyvitamin D3; 25(OH)D2; 25-hydroxyvitamin D2; 25(OH)D3; 25-hydroxyvitamin D3; α-AA; α-am