食物构成,就是人们吃些什么食品,一般用平均每人每年消费各种食品的数量来表示。世界上一些发达国家,由于农林牧渔的高度发展,特别是畜牧业占首位以后,人们的食物构成由以粮食为主转变为以肉、蛋、奶、鱼、油以及糖、水果等为主。例如 Food composition, that is, what people eat food, the average annual consumption of various foods per person per year to represent. In some developed countries in the world, due to the high development of agriculture, forestry, animal husbandry and fishery, especially after the livestock husbandry occupies the first place, people’s food composition changes from mainly food to meat, egg, milk, fish, oil, sugar and fruit . E.g