Calcium is a mineral the body needs to make bones and teeth,
transmit nerve messages, tighten (contract) muscles, and help the blood to clot
and the heart to function properly. Calcium is found in milk and milk products
(including yogurt and cheese); in certain leafy, green vegetables (broccoli,
spinach, kale); in legumes; and in some nuts.
A person
needs to eat 3 to 4 servings a day of foods high in calcium to get the
recommended daily amount.