GAA and type 2 diabetes mellitus: Dietary factors undoubtedly play an important role in the development of type 2 diabetes (T2DM) [11], by regulating and slowing down the activity of major digestive enzymes, especially pancreatic alpha amylase and alpha glucosidase, the absorption rate of carbohydrates in the gastrointestinal tract is significantly reduced, effectively controlling T2DM and alleviating symptoms of hyperglycemia [12].