Minerals play a variety of essential roles throughout the body. Some of the primary roles of each mineral include: – Calcium is a principal mineral constituent of bones and is thus essential for strong bones. – Magnesium is involved in energy metabolism, and is notably important in the heart, skeletal muscles,and nervous system. – Iodine is necessary for the synthesis of thyroxin,the thyroid hormone that regulates the body’s metabolic rate. – Zinc is important for growth, immune system function, protein synthesis, antioxidant mechanisms, and wound healing. – Selenium is an essential cofactor of glutathione peroxidase, a potent antioxidant. – Copper regulates iron metabolism and activates superoxide dismutase, a powerful endogenous antioxidant. – Manganese is essential for antioxidant systems in the body, bone growth, fat metabolism, and protein, nucleic acid, and cartilage synthesis. – Chromium is required for normal blood sugar and lipid metabolism; it is an integral component of glucose tolerance factor (GTF). – Molybdenum is involved in copper and iron transport, nucleic acid synthesis, and sulfur metabolism. – Potassium is involved in normal muscle tone, nerve function, and many enzymes. – Vanadium is active in lipid and glucose metabolism. – Boron is involved in steroid hormone metabolism,cell membrane stability, and bone health.