nutricost Dietary Supplement Magnesium 500 mg Strength Capsule 240 Per Bottle - Bottle500 mg of magnesium per serving from magnesium oxide, magnesium citrate and magnesium glycinate. Magnesium plays a crucial role in insulin regulation and glucose metabolism. Supports muscle relaxation, heart health and energy levels Promotes cognitive function and a positive mood Gentle on digestion NonGMO and certified vegan Bottle contains 240 capsules which will last 8 months if taken as directed.