What are the foods with high quality and high protein content?

red meat such as pigs, cows and sheep; Chicken, duck and other poultry meat, animal lean meat is an important source of high-quality protein. Animal viscera is also rich in high-quality protein. Aquatic products, fish, shrimp, shellfish and crabs are all high-quality protein foods. Protein is one of the three indispensable nutrients for human body. Almost all biological behaviors involve protein, and protein is also one of the important components of human cells.

protein is the material basis of life, an organic macromolecule, a basic organic substance that constitutes cells, and the main undertaker of life activities. There is no life without protein. Amino acids are the basic building blocks of protein. It is a substance closely related to life and various forms of life activities. Protein is involved in every cell and all important parts of the body. Protein accounts for 16%~2% of human body weight, that is, an adult weighing 6kg has about 9.6~12kg of protein in his body. There are many kinds of protein in human body, with different properties and functions, but they are all composed of 2 Aminoacid in different proportions, and they are constantly metabolized and updated in the body.