1. Bone is mostly made of protein and calcium. True False 2. More than 99 percent of the calcium in your body is found in your bones. True False 3. New bone tissue is laid down only during childhood and adolescence. True False 4. Many Americans get less than half the calcium they need for healthy bones. True False 5. Dairy products are an excellent source of calcium. Dark green, leafy vegetables are also good sources. True False 6. Vitamin D is important to your health only if you don't get enough calcium. True False 7. Regular exercise helps strengthen bones. True False 8. Certain medications can cause loss of bone mass as a side effect. True False 9. The older you are, the greater your risk for osteoporosis, a serious bone thinning disease. True False 10. A bone scan is the most common test used to determine bone mineral density. True False Past Quizzes View a full list of past quizzes here