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Vitamin D Deficiency

Vitamin D Deficiency



Deficiency sign :-
The fundamental change in this vitamin deficiency is an increased loss of calcium and phosphate in the faeces .This leads to fall in their blood level, and hense not available for bone formation . Due to this reason, the children suffer from rickets(wrickken=to twist), and adults from osteomalacia. In rickets the bones remain soft due to less doposition of calcium salts. Due to defective ossification there is malformation of the chest and pelvis, and changes in the spinal curvature (scoliosis), softness in parictal bones(craniotabes), etc. Rickets occur in children between 6 and 18 months of life during the period of skeletal growth.

Osteomalacia :-
is a form of adult ricket. It is due to deficiency of vitamin D and calcium salts in the diet. It occurs in women during pregnancy and lactation when a large amount of calcium is depleted frome the pregnant woman ( mother ).
International Unit :- Equivalent to activity of 0.025 micro-gram of calciferol.

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