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The importance of vitamin D for ensuring the health of children has long been understood. Over time, however, dietary recommendations for vitamin D intake have varied, with some eras seeing higher levels recommended and some lower. Remarkably, the current recommendations from the Institute of Medicine are not much different from those released with the first edition of the recommended dietary allowances...
Nutritional rickets has long been considered a disease caused by vitamin D deficiency, but recent data indicate that inadequate dietary calcium intake is an important cause of rickets, particularly in tropical countries. Children with rickets due to calcium deficiency do not have very low 25(OH)D concentrations, and serum 1,25(OH)2D values are markedly elevated. Studies of Nigerian children with rickets...
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