How much nutrients do people need to consume every day?

Carbohydrates, fats, proteins.

Calories: Infants need about 100-120 kcal (418-502 kJ) per kilogram of body weight per day at birth, and then gradually decrease with age, 80-100 kcal (335-418 kJ) at about 1 year of age.

Protein: Protein requirements for breastfeeding are 2 grams per kilogram of body weight per day; grams when fed with milk; When supplied mainly with soy and cereal protein, it is 4 grams.

Fat: Fat accounts for 45 of the total heat at birth, and gradually decreases to 30 40 of the total heat with the increase of age. Fatty acids should provide no less than 1 3 calories of the total calories.

Carbohydrates: Carbohydrates in infancy and early childhood should account for 50-55 of the total calories. Newborn babies can digest other sugars (lactose, glucose, sucrose) except starch.

Minerals: Sodium intake should be restricted in infants before 4 months of age to avoid increasing renal load and inducing hypertension in adulthood. The amount of iron stored in a baby's body at birth is roughly proportional to their birth weight. Iron deficiency is the most common nutritional deficiency in infants.

Vitamins: In breastfed infants, normal breast milk contains all the vitamins needed by the infant, in addition to a low supply of vitamin D. China stipulates that the amount of vitamin A for infants under 1 year old is 200 micrograms per day.

The amount of vitamin B1, B2 and niacin varies with the amount of caloric energy, and for every 1000 kcal intake, vitamin B1 and mg are supplied, and the supply of niacin is 10 times greater, i.e. 5 mg 1000 kcal.

Water: Normal infants are recommended to receive 150 ml of water per kilogram of body weight per day.

Many parents have encountered such troubles, how much nutrient intake is the best for the baby a day? And how to meet the needs of the various elements and microelements in these quantities? Once the intake of certain nutrients in infants and young children is insufficient or excessive, it can significantly affect the process of development in a short period of time, so it is immeasurable harm in the long run, which will have an extremely adverse impact on the baby's physical and mental health.

There are more than 40 essential nutrients in 7 categories, including carbohydrates, fats, proteins, minerals, vitamins, fiber, and water. Among them, carbohydrates, fats, and proteins are called the "three major nutrients".

Nutrients can be divided into macronutrients and micronutrients according to the amount of nutrients required by the human body.

Macronutrients refer to nutrients that require more than 1 gram per day, such as carbohydrates, fats, proteins, water and potassium, sodium, calcium, magnesium, phosphorus, chloride, etc.;

Micronutrients are nutrients such as iron, copper, zinc, cobalt, manganese, molybdenum, selenium, silicon, iodine, fluoride, and certain vitamins that require between a few grams per million and milligrams per thousand.

Therefore, the above questions are not enough for the nutrients that a person needs every day.

It's definitely not enough, the human body needs carbohydrates, proteins, etc.

It's not comprehensive enough, people need a lot of energy.