Question

the condition known as osteopenia affects mostly women. causes a gradual reduction in bone mass. is caused by too much vitamin d in the diet. only affects the femur. is rarely seen as people age.

Explanation:

Osteopenia is a condition where there is a gradual decrease in bone mass. It can affect both genders and multiple bones, not just the femur. It is more common with aging and is not caused by excessive vitamin D intake.

Answer:

causes a gradual reduction in bone mass.