The seven nutrients are mainly minerals, lipids, protein, vitamins, carbohydrates, water and dietary fiber. Seven kinds of nutrients can play three physiological roles in the human body: one is as an energy substance to supply the energy needed by the human body, the other is as a "building" material for the human body, protein; Third, as a regulating substance, it regulates the physiological functions of the human body, mainly including vitamins, minerals and dietary fiber.

Nutrients are substances that need to be ingested from the external environment in order to maintain all life activities and processes such as reproduction, growth, development and survival. Nutrients must be taken from food to meet the minimum needs of the body, that is, survival.

Extended data:

There are many kinds of nutrients from food. According to their chemical properties and physiological functions, nutrients can be divided into seven categories, namely protein, lipids, carbohydrates, minerals, vitamins, water and dietary fiber. Nutrients can be divided into macronutrients and micronutrients according to the human body's demand for various nutrients or the amount of nutrients in the body. Macronutrients The human body needs a lot of macronutrients, including carbohydrates, lipids and protein. These three nutrients can release energy after oxidation in the body, so they are also called productivity nutrients and dietary fiber that cannot be absorbed by the human body.

Baidu encyclopedia-seven nutrients