Calcium is vital in your diet for keeping your bones and teeth strong. Besides low-fat milk, yogurt, and cheese, good sources of calcium include dark green leafy vegetables, like spinach and broccoli: calcium fortified fruit juice, and canned salmon.
When talking a calcium supplement, make sure it also contains Vitamin D and Boron. There are several good supplements on the market. Just make sure you remember that only about 40 -45% of ingested calcium is actually processed by the body.