What are Essential Amino Acids? What are the essential amino acids? What foods are rich in essential amino acids?

1. What are essential amino acids?

Essential amino acids refer to the human body (or other vertebrates)NoSynthesis or synthesis speed is far from possiblesatisfyBodyneed, must be fromIn vitroFoods in proteiningestmoreoverNecessary for the human bodyof amino acids.

The human body cannot be deficient in essential amino acids for a long time, otherwise it will not be able to maintain the body's nitrogen balance and affect health. It causes abnormal metabolism in the body, which affects the health of the whole body.

2. What are the types of essential amino acids?

There are more than 100 known amino acids isolated from various natural sources, but there are only more than 20 amino acids that make up human proteins, and only essential amino acids8 typesnamelyLysine, threonine, leucine, isoleucine, valine, methionine (methionine), tryptophan, phenylalanine； In addition, the amount of arginine and histidine synthesized by the human body does not meet its own needs, and it also needs to take a part from food, which we call semi-essential amino acids for the human body.Recite mantra one：The stupid came to the dormitory to dry his shoes；Recite mantra two：Let's say you borrow a book or two。

3. What are the specific functions of essential amino acids?

The main effects are as followsFive aspects：

(1) It is to synthesize or repair tissue proteins to supplement the same kind of proteins that are broken down in human metabolism;

(2) It is synthesized or converted into other amino acids, such as phenylalanine can be converted into tyrosine, methionine can be synthesized into cysteine, etc.;

(3) it is the catabolic process that enters amino acids, and its nitrogen-containing part is usually converted into urea;

(4) It is a nitrogenous compound other than protein, such as purine, creatine, etc.;

(5) It is used as a thermogenic nutrient to release energy in the metabolic process for the body's needs.

4. Which foods are rich in essential amino acids?

(1) Meat: such aschicken, beef, pork, etc., are not only rich in essential amino acids, but also high in protein.

(2) Eggs:Egg, duck eggs, etc., are a high-quality source of amino acids, rich in nutrients and easy to absorb.

(3) Milk:Milk, goat's milk, etc., contains a variety of amino acids required by the human body.

(4) Legumes:soybean, black beans, etc., have a complete range of amino acids in their vegetable proteins.

(5) Nuts: almonds,walnutetc., can provide a certain amount of amino acids.

5. What common foods are deficient in essential amino acids?

（1）cerealFood: CerealsleucineThe content is comparativelow。

（2）plantSexual protein: In plant-based proteinLack of lysine, methionine, threonine, leucine, isoleucine, valine, phenylalanine.

（3）animalSexual foods: Leucine deficiency may occur if the diet is high in cereals and low in animal foods.

Homework:

1. Why are children or adults?Don't be picky or picky eaters？ WhyEat a balanced diet？

2. What is the Dietary Nutrition Pagoda?Dietary Nutrition PagodaWhat's thereGuidance？