Magnesium is an essential mineral and is the second most abundant nutrient in the body 50 60 of which is stored in bone. Magnesium is responsible for over 300 different processes in the body including energy metabolism the healthy structure of bones and teeth and normal nerve transmission and muscle function including heart muscle. Magnesium is an essential mineral and is the second most abundant nutrient in the body 50 60 of which is stored in bone. Magnesium is responsible for over 300 different processes in the body including energy metabolism the healthy structure of bones and teeth and normal nerve transmission and muscle function including heart muscle. Ingredients: Magnesium Oxide 167mg providing 100mg of elemental Magnesium 27 RDA Microcrystalline Cellulose Magnesium Stearate. Directions: Take two to four tablets daily as a food supplement or as directed by a healthcare professional. Store in a cool dry place. Keep away from children at all times. Do not use if the seal is broken. Cautions: Pregnant or Lactating women should consult a Doctor before using this product. Food Supplement: This product should not be used as a substitute for a varied diet. Caution: If under medical supervision please consult a doctor before use. Discontinue use if adverse reactions occur. Do not exceed the recommended daily dosage. Keep out of reach of children. Always read the label before use.