Calcium intake

Bone is living tissue in perpetual renewal. This bone remodelling constantly weighs the demolition and reconstruction processes against one another and there are three major stages during the course of life:

• growth during the first 20 years: formation of bone mass, the formation being greater than the resorption,
  
  - plateau: a period of balance between the two phenomena,
• bone loss: The loss is 0.5 to 1% per year with a phenomenon that accelerates in women after the menopause.

Thus, the more the initial bone mass is significant the more subsequent risk of complications is kept under control.

From childhood, calcium intake should be sufficient; and the intake should be adjusted and maintained in adulthood. A sporting activity, also beneficial to bone healing, can be recommended.
Similarly, sun exposure is to be favoured in order to produce vitamin D.