Miki T, et al. – Researchers analyzed metabolic alterations in IGT by applying two types [D–glucose (Glc) and partial hydrolysate of starch (PHS)] of oral glucose tolerance tests (OGTT), with emphasis on serum incretins and metabolites. According to the data, comparison of PHS/OGTT and Glc/OGTT revealed that oligosaccharide absorption was accelerated in impaired glucose tolerance (IGT). Remarkably, methylcysteine and sedoheptulose 1,7–bisphosphate could be novel markers for dysregulated glucose metabolism.