Term: Astronaut, Description: Person who commands, pilots, or serves as a crew member of a spacecraft, Question: Does an astronaut worry about osteomalacia?, Answer:No
Fact1: astronauts spend many months on a space. Fact2: In space gravity force is much smaller than on earth. Fact3: You cannot maintain appropriate bone density in low gravity environment. Fact4: Astronauts tend to have osteoporosis.  Fact5: osteomalacia is caused by severe vitamin D deficiency not lack of gravity.  