Magnesium is an essential nutrient, indispensable to your health and well-being. By adding this mineral to your diet, you are guarding against-and helping to alleviate-such threats as heart disease, stroke, osteoporosis, diabetes, depression, arthritis, and asthma. But despite magnesium's numerous benefits, many Americans remain dangerously deficient. Updated and revised throughout with the latest research, this amazing guide explains the vital role...