简述维生素缺乏的主要原因。
许多因素可致人体维生素不足或缺乏,常见原因有:①膳食中供给不足。②抗维生素化合物的存在。③人体吸收利用降低。④机体对维生素的需要相对增高。
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/1005632.html
上一篇:计算机网络主要有哪三个基本特征?
下一篇:How did the Days of the Week Get Their Names?There was a time in the early history of man when the days had no names! The reason was quite simple:Man had not invented the week.In those days,the only division of times was the month,and there were too