Nutritionists and dietitians can analyze a person's diet in detail by using tables of food composition. 营养学家和饮食学家能够通过使用食物成分表详细分析个人的饮食。
Food intolerance, where a symptom is triggered by a food or substance, is much more common than food allergy. 食物不耐受的症状由某种食物或食物成分引起，比食物过敏更常见。
This gradual change in the food consumption pattern will cause the staple food consumption to decrease while the supply of grain used for feed will gradually increase. 由于食物构成的变化，直接食用的口粮将继续减少，饲料粮将逐渐增加。
