That might be families on low incomes, pregnant women, people with diabetes, or anyone on a restricted diet or one that involves cutting out whole food groups, such as vegans, vegetarians, or people with coeliac disease.

比如说低收入家庭、、尿病患者，者正进行限制性饮食，者不摄入某一类食物，如纯素主义者、素食主义者患有乳糜泻。