Like "Redorangedog, Proper balance of magnesium is key to a healthy stress response. Many people eat too many calcium supplements to stave off osteoporosis and do not step up their magnesium, thus increase the occurrence of heart disease. Magnesium is vital to enzyme activity. It assists in calcium and potassium uptake. A deficiency interferes with the transmission of nerve and muscle impulses, causing irritability and nervousness. Supplementing the diet with magnesium helps prevent depression, dizziness, muscle weakness, twitching, heart disease, and high blood pressure, and also aids in maintaining the proper ph balance. This essential mineral protects the arterial lining from stress caused by sudden blood pressure changes and plays a role in the formation of bone and in carbohydrate and mineral metabolism. With vitamin B6, magnesium helps reduce and dissolve calcium phosphate stones. Sources are found in most foods, especially dairy products, fish, meat and seafood. Other rich sources include apples, apricots, avocados, bananas, black-strap molasses, brewer's yeast, brown rice, figs, garlic, kelp, lima beans, millet, nuts, peaches, black-eyed peas, sesame seeds, tofu, tourla, greens, leafy vegetables, wheat and whole grains. The RDA recommends that an adult consume 750 mg a day with a 1 to 2 ratio to calcium, which would be 1500 mg a day. "