Dietary Supplement Bone Health Nerve Function Healthy Teeth Gluten Free Preservative-Free Milk / Casein Free Potency & Quality Guaranteed An FDA Regulated FacilityCalcium promotes healthy bones and teeth, is an important mineral required for muscle contractions and nerve function, and plays a role in many blood and tissue processes.The calcium is chelated with glycine (an important amino acid in human nutrition) to promote absorption.