People in different physiological states have different needs for various nutrients. For people who lack some nutrients, providing this nutritious food can improve their health well;

However, for this kind of overnourished people, or those who need to limit this kind of nutrition because of some diseases, the same food may have many adverse effects on their health. For example, diabetics can't eat many foods with high glucose content at one time.

Extended data nutrient density

Because of the great differences in water and energy provided by different kinds of foods, when evaluating the nutritional characteristics of various foods, it is sometimes impossible to scientifically reflect the real differences in nutritional values of different foods only by comparing the nutritional content of100g of foods. At this time, the concept of nutrient density (ND) can evaluate the nutritional value characteristics of food more accurately.

The so-called nutrient density is the ratio of nutrient content to energy content in a food or diet. It is expressed by the number of nutritional mass units per 1000 calories. For example, the protein density of standard wheat flour is 32g/1000 kcal, and the calcium density is 90mg/1000 kcal. The formula of nutrient density is:? Nutrient density = (100g of nutrients in food/100g of energy contained in food) × 1000.