the nutritional value and function of milk

the nutritional value and function of milk. Milk products are rich in trace elements needed by human body, such as calcium and iron, which are not only delicious, but also beneficial to osteoporosis. I would like to share with you the nutritional value and function of milk, hoping to help you. The nutritional value and function of milk 1

Milk

Milk has the highest nutritional value among many animal milk. It is cheap and nutritious, and it is a nutritional supplement for the elderly and infirm. Its protein is mainly casein and lactalbumin, which contains 18 kinds of amino acids, including 9 kinds of essential amino acids needed by human body. It belongs to complete protein, and its biological value is 85. About 95 ~ 96% of milk fat is triglyceride, and the fat particles are small and highly dispersed, which is easy to digest and absorb. Carbohydrates are all lactose, which can promote gastric juice secretion and gastrointestinal peristalsis. Milk is rich in minerals such as calcium, phosphorus and potassium, and its calcium mostly exists in the form of calcium caseinate, with high absorption rate, low iron content and low absorption rate. Vitamin content varies with feeding conditions, seasons and processing methods. Vitamin D and C are high in summer, and vitamin A is the highest in winter. Regular consumption can replenish deficiency, benefit the five internal organs, moisturize the skin, strengthen the body and prolong life, and has a preventive effect on senile osteoporosis.

goat milk

goat milk mainly refers to the milk produced by female goats. The nutritional value of goat milk is high. The nutritional value of goat milk is almost the same as that of milk, with high milk white protein content, fine and soft milk clot, and fat particle size close to that of human milk. Goat milk contains many minerals, and its iron, phosphorus and potassium content is high, which is the best supplement for infants, pregnant women and the elderly and the sick.

Yogurt

Yogurt is a dairy product made of fresh milk or skimmed milk, which is sterilized and fermented by pure cultured lactobacillus. Yogurt has high nutritional value. Because of the increase of acidity, it can protect ascorbic acid from being destroyed, inhibit intestinal spoilage bacteria, adjust intestinal flora, prevent the adverse effects of spoilage bacteria and amines, improve human body's resistance to diseases, and is easy to digest and absorb, especially beneficial to gastrointestinal absorption of the elderly. It is not only suitable for gastrointestinal patients such as diarrhea, dyspepsia and enteritis, but also a health food for the elderly.

whole milk powder

whole milk powder is made from fresh milk by spray drying. Is convenient to transport, store and eat. At present, there are many manufacturers producing milk powder all over the world with different varieties. There are Heinz milk powder, Quechao milk powder, infant milk powder, vitamin-enriched multi-dimensional milk powder, full-fat instant milk powder, skim milk powder, prepared milk powder and so on. In recent years, there are many varieties of breast-fed milk powder, which have the advantages of increasing the iron content, reducing the casein content and increasing the vitamin A content. It is a superior nutritious food suitable for all ages. Nutritional value and function of milk 2

Nutritional value

1. Milk is rich in vitamin A, which can prevent dry and dull skin and make skin fair and shiny;

2. Milk contains a lot of B2, which can promote skin metabolism;

3. Whey in milk can eliminate melanin and prevent spots caused by various pigmentation;

4. Milk can provide skin with sealing oil, form a film to prevent skin moisture evaporation, and temporarily provide moisture, which can ensure smooth and moist skin;

5. Some substances in milk have protective effects on middle-aged and elderly men. Men who drink milk tend to be slim and full of physical strength, and the prevalence of hypertension and cerebrovascular diseases is also low.

6. Calcium in milk is the easiest to be absorbed, and the collocation of phosphorus, potassium, magnesium and other minerals is also very reasonable. Pregnant women should drink more milk, and middle-aged women before and after menopause can slow down bone loss.

Edible efficacy

1. Calm down: Drinking a glass of milk before going to bed can promote sleep.

2. Inhibit tumor: Milk and dairy cheese contain a CLA substance, which can effectively destroy free radicals that are dangerous to cancer in human body, and can quickly combine with cell membrane, so that cells are in a state of defending against the invasion of cancer-making substances, thus playing a role in preventing cancer. Moreover, the' calcium' contained in milk can effectively destroy carcinogens in human intestines, make them decompose and change into non-carcinogenic substances, and excrete them. Vitamin A, vitamin B2 and vitamin D contained in milk have certain preventive effects on gastric cancer and colon cancer.

3. Promote the development of children's brains: Milk is the only food for mammals to survive and develop after birth, and it contains all the nutrients necessary for the development of their young.

4. beauty beauty: Whey in milk can eliminate facial wrinkles and keep skin smooth and moist.

5. Comprehensive nutrition supplement: it can keep arterial blood vessels stable under high pressure and reduce the risk of stroke; Can greatly improve the working efficiency of the brain; It can strengthen bones and teeth and reduce the occurrence of skeletal atrophy; Make the wound heal faster.

Suitable crowd

It can be eaten by the general population. < P > Taboo population < P > Patients with iron deficiency anemia, digestive tract ulcer, cholecystitis and pancreatitis should not drink it; Take it with caution if the spleen and stomach are deficient in cold and diarrhea, and phlegm and dampness accumulate.

shopping skills

1. Look at the brand: high-quality brand milk, the product quality is more guaranteed.

2. Look at the packaging: milk is generally packed in cartons, and the packaging should be clean and tidy, with no typography, missing printing, external leakage and package expansion.

3. Look at the label: regular prepackaged milk must be marked with the product name, ingredients, net content, production date, shelf life, storage conditions, manufacturer's address and contact information, product standard number, production license number, product type, nutrient composition table and certification mark. If any item is missing, it is a unqualified product. Pay attention to the production date of products and try to buy products with newer production dates.

4. Look at the nutrient composition table: the nutrient composition of milk will mark the contents of protein, fat, carbohydrate, sodium and calcium. The content of fat and calcium should be consistent with the product type, and choose the product with appropriate content according to your own needs.

5. Look at the state of milk: high-quality milk is even milky white, fine and not sticky, without caking and stratification, without precipitation, without normal vision and visible external impurities.

6. Look at the wall hanging: the milk poured into the glass has a layer of milk film on the wall, which is delicate and has no small particles visible to the naked eye.

7. Taste: the taste is even and smooth, not sticky, with natural aroma and sweetness, and no sour, bitter and other peculiar smells.