Composition capable of improving gastrointestinal tract function and assisting lowering of blood sugar and blood lipid

The present invention provides a composition, which is characterized mainly by a shell oligosaccharide, mannan oligosaccharide, oligopeptide, grape seed, natural astaxanthin according to a certain ratio, processed and made. Component of the formulation by weight percent: Chitooligosaccharide (Chitosan oligosaccharides, COS) 30.0% ~ 50.0%, mannose oligosaccharides (Mannose oligosaccharides, MOS) 10.0% ~ 30.0%, the protein hydrolyzate (oligopeptides) 5.0% ~ 15.0%, grape seed extract, 1.0% to 5.0% natural astaxanthin (astaxanthin, ASTA) 0.01% ~ 0.02%. The composition may promote intestinal bifidobacteria, lactobacilli and other significant proliferation of beneficial bacteria, and on the basis of the environment to improve the gut microflora, reducing blood glucose, lipid, strengthen the immune system.