i think the awnser is nutrition facts i really hope this helps ;)
Eat calcium-rich foods.
Take calcium supplements. ...
Add Vitamin D to your day. ...
Do weight-bearing exercises. ...
Don't smoke, and don't drink excessively. ...
Get your bone mineral density tested. ...
It can make antibodies immediately!!
To men, there are acne and breast development, to others it could be life-threatening, like liver cancer or heart attacks.