Functions of 1. protein powder and its applicable objects

The so-called protein powder is generally powder composed of purified soybean protein, casein, whey protein or the combination of the above proteins, and its purpose is to supplement protein for individuals lacking protein. The main function of protein powder is to correct malnutrition in protein, and it is mainly suitable for patients whose body is in negative nitrogen balance due to trauma, burns, extensive skin ulceration, major surgery, tumor radiotherapy and chemotherapy, etc. It can also be used for patients with insufficient intake or absorption of protein caused by anorexia nervosa, functional dyspepsia and intestinal malabsorption. It can also be used for growing children, pregnant women and lactating women, and the elderly with weak gastrointestinal function. It can be said that protein powder is not a supplement suitable for all healthy individuals.

2. protein that healthy people need every day

The daily protein requirement of a healthy adult is 0.8 ~ 1.0g per kilogram of body weight, which is about 50 ~ 60g in total.

The protein required by healthy adults can be completely met by daily diet. Eat a proper amount of staple food (more than 6 pairs for men and more than 5 pairs for women), 1 ~ 2 bags of fresh milk (250 ~ 500ml) or the same amount of yogurt or soybean milk, 1 egg, 3 pairs of lean meat, 2~3 pairs of bean products, etc. Enough to supplement 50 ~ 60g protein needed by a healthy individual every day. If protein powder is supplemented on this basis, the intake of protein will exceed the standard, thus making the human body in a state of "high protein load".

3. Adverse effects of excessive supplementation of protein by healthy people.

Excessive intake of high protein will bring many adverse effects on human health. For example, long-term intake of high protein will increase the burden on the kidneys, and even make the kidneys "overloaded" for a long time, which may accelerate their aging and damage; Also, excessive intake of protein will promote the dissolution of calcium in bones and increase the loss of calcium. Long-term intake of high protein will increase the risk of osteoporosis.

To sum up, it is not difficult for us to draw the conclusion that:

1. protein should and can be supplemented by a reasonable daily diet;

2. Healthy adults don't need to supplement protein powder on the basis of reasonable daily diet.

3. For patients or specific groups who can't eat normally, the demand for protein is increasing, protein is malabsorption, and protein is too much, so protein powder needs to be supplemented under the guidance of nutritionists.