Dr. Becker's BioNutrients is a physician formulated line of dietary supplements. Each product is standardized to assure maximum potency and health benefit. Astragalus Root is a perennial plant found in Asia that provides nutritional support for the body's immune and digestive systems. BioNutrients Astragalus Root is harvested and processed under strict guidelines assuring reliable quality in every vegetarian capsule. Take 3 capsules up to three times daily.