If you have ever broken a bone, you do not want to ever feel that pain again. But low bone mass (osteopenia) and severe low bone mass (osteoporosis) is a difficult problem affecting many women and some men. For females, the most rapid bone mass accumulation usually occurs between the ages of 11 and 14. Bone mass continues to increase in the in the teen years and even into the twenties, but usually peaks by age 30. You definitely want to start with a healthy bone mass, because it dwindles throughout life, with the loss accelerated after menopause.
However, to form or keep good bone it is important to have sufficient intake of calcium(about 1200mg daily) and to have adequate amounts of vitamin D available. Unfortunately, young girls are not drinking a lot of milk. They often do not have a lot of calcium sources in their diet. What is worse is that if they happen to drink a lot of coke or other dark soda, they may actually be sabotaging their own skeleton.
Since humans make vitamin D with the help of the sun, sunscreen also may lead to lower vitamin D levels. Sunscreen is important, and it is still a good idea to lather it on. But there are a couple of changes that can be simply made that will likely prevent a lot of pain down the road.
#2- As far as vitamin D is concerned, it is now recommended that a supplement of 800 international units of vitamin D be taken daily. Spending a little time in the sun daily also helps