DOCTORS' PREFERRED Berberine Clinical Grade Supplement is a doctor-formulated dietary supplement that provides 1,500 mg of Berberine per daily serving. This supplement is designed to help maintain healthy lipid levels within the normal range and support overall wellness. It is developed by Julian Whitaker, MD, a pioneer in integrative medicine, and adheres to stringent quality standards with thoroughly screened raw materials, 100% batch testing, and independent verification of purity and potency. The product comes in a bottle containing 90 capsules, providing a 30-day supply.