Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
众所周知,维生素是人体所需的六大营养素之一,也是维持人体正常生活及健康所必需的微量有机化合物。对绝大多数维生素而言,人体不能直接合成或合成量非常少,无法满足机体的需要。因此,必需由食物供给以维持正常的生命活动和生理功能。随着营养观念的深入人心,人们越 ...