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维生素D缺乏是我国乃至全世界面临解决的重要营养问题,主要出现于儿童,引起骨质变软变形,导致X、O型腿、鸡胸、出牙迟及不齐、易龋齿、腹部肌肉发育差、易膨出;同时,维生素D缺乏也易引起成人骨质软化病及老年骨质疏松症。近年来,有研究表明维生素D除具有经典的调节钙磷平衡和维持骨骼健康的作用外,还具有调节激素水平、影响免疫功能、
Lack of vitamin D is an important nutrition problem that our country and even the whole world are facing to solve. It mainly occurs in children and causes soft deformation of the bone, resulting in X, O-type legs, chicken breasts, missing and missing teeth, decayed teeth and poor abdominal muscular development , Easy to bulge; the same time, vitamin D deficiency can easily lead to adult osteomalacia and senile osteoporosis. In recent years, studies have shown that vitamin D in addition to the classic regulation of calcium and phosphorus balance and maintain the role of bone health, but also has the regulation of hormone levels, affecting immune function,