One of the best ways to help protect against osteoporosis is to bolster your diet with calcium while you're young and get plenty of exercise. Even after bones stop growing in length, they continue to fill-in and gain strength until about age 35. After that, calcium helps maintain bone density and helps prevent premature loss of bone density. Adults over the age of 25 need 1,000 mg of calcium or three glasses of milk per day to ensure strong bones. Excessive loss of bone density may lead to osteoporosis, a bone crippling disease that affects 20 million American women.
Strong bones depend on many things.