Astragalus extract is the dried root extract of the leguminous plant Astragalus. Dry roots are cylindrical, rarely have differences, the upper end is thick, the lower end is thin, flat at both ends, 20~70cm long, coarse 1~3cm, the surface of the grayish yellow or light brown, all have irregular longitudinal wrinkles or trenches, weak and specific, slightly sweet taste, chewing bean smell. It can enhance immunity, enhance energy, resist fatigue, resist mutation, protect liver and inhibit osteoclast. Astragalus polysaccharide has the effect of lowering blood lipids, that is, lowering cholesterol and triglyceride and increasing high density lipoprotein. It can help support cardiovascular and cerebrovascular health. Astragaloside IV can help reduce blood sugar, glycosylated hemoglobin and urinary protein.