Osteoporosis is a condition in which bones become fragile and can break easily. Even though it is most often associated with women, men can also develop osteoporosis. In fact, estimates based on data from the CDC indicate that by 2020, 3.3 million men will have osteoporosis. For osteoporosis resources from FNIC, go to Diet and Disease > Osteoporosis.
NIH provides more information on osteoporosis and its prevention: