进入秋冬季节,宝宝发育的速度比较快,骨骼生长也快,钙、磷代谢明显加快。如果在这时候没有注意保证宝宝足够的维生素D的吸收,宝宝容易得佝偻病。佝偻病,是婴幼儿时期常见的一种营养性疾病。引起佝偻病的主要原因是体内维生素D水平不足。维生素D的主要功能是促进钙、磷吸收和利用,并保 Into the autumn and winter, baby development faster, faster bone growth, calcium, phosphorus metabolism significantly accelerated. If at this time did not pay attention to ensure adequate absorption of vitamin D baby, baby easy rickets. Rickets is a common nutritional disease in infancy. The main cause of rickets is the lack of vitamin D in the body. The main function of vitamin D is to promote calcium and phosphorus absorption and utilization, and Paul