One must understand that the joint contains the all important synovial fluid. The most important ingredient in this fluid is nutrients. Nutrients are derived from daily diet. Should the daily diet have excess or lack of any required nutrients, joint damage is bound to occur. The bone will try to correct this by thickening its bone mass.
Cracks develope on the jointcartillage.
The regenerative and elastic properties of the articular cartilage are reduced and result into loss of lubrication and nourishment. Scartissue developes replacing the cartillage. The femoral head is flattened resulting to abnormal wear of the articular cartilage developing bone-cartillage formations. On stress points bonecartillage is wornout and the bone is bared. Result is a painfull and movement restrictive joint damage.