Pork contains high-quality protein, dietary fiber, fat, cholesterol, thiamine, vitamin B2, nicotinic acid, vitamin C, vitamin E, vitamin A, carotene, potassium, phosphorus, calcium, sodium, selenium, magnesium, iron, zinc and essential amino acids.
1. protein in pork is mainly high molecular myosin and myoglobin, which is a relatively stable soluble protein with high price, easy digestion and absorption, and high nutritional components and edible value.
2. Pork is a kind of meat food with high energy and fat. It is an important energy source for human physiological activities. Lipids are important components of cell protoplasm and nerve tissue, among which phospholipids can also promote the transport of cholesterol in the body. For health, fat has the functions of maintaining nutritional balance, disease resistance and immunity.
Like other animal meat, pork contains more essential trace elements, such as calcium, magnesium, phosphorus, sodium, potassium and chlorine. Among them, calcium and phosphorus are nutrients for long bones. Iron is not only an indispensable substance for hemoglobin synthesis, but also the most important component of more than a dozen enzymes (such as cytochrome C and cytochrome oxidase). ) to maintain normal human life activities. Sodium, chlorine and other elements can supplement the salt consumed by the body and are also raw materials for generating gastric acid.
Pork contains a variety of B vitamins, especially vitamin B 1. Without vitamin B 1, people will suffer from beriberi, polyneuritis, anorexia, vomiting, beriberi heart disease, myocardial edema and sulfanilamide poisoning.