Osteoporosis is a bone disease that not only affects elderly people, but it can affect young as well. Osteoporosis is the loss of bone density, which can lead to bone fractures and breaks. There are some preventive measures that can be taken to prevent osteoporosis. The earlier in life that a person takes notice of their bone health, the better chance there is to avoid the onset of the condition. Preventive care is essential in avoiding osteoporosis.Diet is a big part of osteoporosis prevention. Calcium is what makes bones strong in our bodies. Drinking milk and eating other dairy products provides the body with the essential calcium it needs. Those who cannot tolerate drinking milk should consider taking a calcium substitute every day. Cheese and yogurt are also good sources of calcium. There are more cereals now that are enriched with calcium so even children can benefit from preventive care that begins when they are young.Vitamin D plays a role in bone development as well, but it is not abundantly found in foods. The body generally produces vitamin D from healthy exposure to sunlight. In cases where vitamin D is not sufficiently generated in the body, a vitamin supplement can be taken to help the absorption of calcium for bone density.Daily exercise strengthens bones and helps to maintain bone density throughout life. An exercise regime of at least 30 minutes every other day is enough to keep bones healthy and to prevent osteoporosis. Walking is the best exercise anyone can do and it is normally the easiest. Aerobics can increase the heart rate and help with bone strength as well. Weight bearing exercise should also be part of an exercise plan, because this type of physical activity helps to actually build bone density. The more active you are, the better the chances of not developing osteoporosis in the future.The older people get, hormone levels begin to drop in the body. This is especially true for women. Estrogen levels decrease with age which can lead to the onset of osteoporosis. A hormone supplement can be taken to increase estrogen levels. A natural hormone, such as progesterone, can also help protect bone loss.Medicines also have become available to prevent osteoporosis, such as Fosamax. This drug can be taken by both men and women and aids in prevention and the treatment of osteoporosis. Actonel and EVISTA are other drugs that increase bone density. The use of drugs, however, always come with the risk of side effects. The best early prevention of osteoporosis is to develop a healthy diet, regular exercise routine and the addition of quality calcium supplementation.