1. Their physical meanings are different. Nutrition is a process, which refers to an "action", "behavior" or "biological process", and nutrients are a real substance.

2. The definitions of the two are different: nutrition is a biological process in which food nutrients are absorbed and utilized by life activities. There are seven categories: sugar, lipid, protein, vitamins, inorganic salts, water and cellulose, which are usually called nutrients.

3. The subordinate relationship between them is different, and nutrients contain nutrition.

Extended data:

Macronutrients include carbohydrate, fat, cellulose, protein and water; Micronutrients include minerals and vitamins, which can be subdivided into fat-soluble vitamins and water-soluble vitamins. Fat-soluble vitamins include: vitamins A, D, E and K; Water-soluble vitamins include vitamin B 1, B2, B6, B 12, nicotinic acid, folic acid and vitamin C.

Macronutrients, except cellulose and water, mainly provide energy for human body, measured in joules or calories. Each gram of carbohydrate or protein provides 4 kilocalories, and each gram of fat provides 9 kilocalories [1]. Other nutrients, including cellulose, water, minerals and vitamins, do not provide energy, but play an important role in the physiological activities of the body.

Baidu encyclopedia-nutrients

Baidu encyclopedia-nutrition