In order to expand and strengthen the bones, more exercise, do physical work and eat a healthy diet, as improved blood circulation and improve all processes in the body, including metabolism.
Make yourself a diet consisting of foods containing calcium, phosphorus, iron, trace elements. Eat cereals, dairy products, fish, greens, meats, and be sure to enter in your diet jelly. For example, child diathesis give crushed eggshells added a few drops of lemon juice or milk. Also you can eat the shell with the jam or marmalade.
For greater effect, take medicines containing calcium. But be careful, because calcium in high doses contributes to the appearance in the body rain. Talk to your doctor about how much calcium you need to take. And don't forget about regular food, healthy sleep and exercise.