Protein is an essential nutrient for human body, so we should pay attention to the intake of high-protein food in our daily life.
High-protein foods, one is animal protein such as milk, livestock meat, poultry meat, eggs, fish and shrimp; The other is beans such as soybeans, green beans and black beans, as well as plant proteins such as sesame seeds, melon seeds, walnuts, almonds and pine nuts.
Because the types and proportions of amino acids contained in animal protein are more in line with human needs, the nutritional value of animal protein is higher than that of plant protein.
Nutritional value:
The content of protein in beans, peanuts, meat, milk, eggs, fish and shrimp is higher, while the content of cereals is less, even less in vegetables and fruits.
The human demand for protein depends not only on the content of protein, but also on the types and proportions of essential amino acids contained in protein. Because the types and proportions of amino acids contained in animal protein are more in line with human needs, the nutritional value of animal protein is higher than that of plant protein.
In plant foods, protein in rice and flour lacks lysine, and protein in beans lacks methionine and cystine. Therefore, eat more mixed foods, and have complementary functions to improve the utilization rate of mixed protein. If proper animal protein is added, the nutritional value of protein in the diet can be improved.
Although the content of protein in human milk, cow milk and eggs is low, their essential amino acids are basically the same as human body, so their nutritional value is high.