Millions of Americans are affected by bone diseases from various causes, the most common of which is osteoporosis. People with osteoporosis are at a high risk of fractures. Fractures are often disabling and lead to deterioration in the patient’s physical and mental health. Primary osteoporosis is the most common type of osteoporosis. It is the result of deteriorating bone structure and bone loss with aging. Primary osteoporosis can be prevented through proper nutrition, adequate physical exercise, and when necessary, appropriate treatment. Secondary osteoporosis is the result of other diseases that affect the bones and certain drugs and toxic substances that make bones weak. If secondary osteoporosis is recognized in time, it can be prevented with nutrition, physical activity, and treatment if needed.