The practice of subsisting on a diet composed primarily or wholly of vegetables,grains,fruits,nuts,and seeds,with or without eggs and dairy products.

• 素食主义靠食用主要或全部由蔬菜、谷物、水果、干果和种子构成的（包括或不包括蛋类和乳制品）日常食物，维持生存的做法。