In recent years, domestic dairy products have been the hardest hit areas for food safety problems. The saying that “a cup of goat milk equals three cups of milk†makes consumers question their trust. Is goat milk really so good? If it is really good, why is the dairy market still dominated by milk?
Zhang Ting
Consumers have no idea
Ms. Deng, who had just become a mother, was puzzled. She heard that the nutritional content and easy absorption of goat milk powder are closer to breast milk. When she bought baby milk powder in several shops selling baby foods in Beijing, sales staff recommended goat milk powder. At the same time, she found that sales of goat milk powder on many shopping sites were very large. The price of 900 grams of goat milk powder was more than 300 yuan. Some even created a record of 2231 pieces sold in 30 days.
Many websites announced in the introduction of goat milk: "Goat milk is a dairy product that domestic and foreign nutrition experts agree that is the closest to breast milk. Goat milk is not only nutritious, but also easily digested and absorbed, and does not get angry. Same as breast milk; the protein structure of goat milk is basically the same as that of breast milk.†In the face of these alluring publicity, Ms. Deng lost her mind.
The nutritional content of goat milk is slightly higher than milk
Before we talk about goat milk, we must first look at the nutritional value of milk.
The term "milk" was first seen in China in the "Shen Nong's Herbal Classic." It has a history of more than 1,800 years. Chinese medicine believes that milk is slightly sweet and cold, with thirst, nourishing the intestines, clearing away heat and constipation, tonic and spleen and other effects. Today, the main milk source for the Chinese is milk.
The protein in milk contains the essential amino acids needed by the human body and is a good quality protein for the human body. Protein is the main component of milk, including casein and whey protein. Half a kilo of milk can supply 20%~25% of the daily protein requirement of the human body or 40%~45% of the animal protein requirement. It contains high digestibility of milk protein and can be well absorbed by the body, guaranteeing Normal human needs, and can promote children's growth and development, but also the source of energy.
99.8% of sugars in milk are lactose, with a very small amount of glucose, fructose, and galactose. Lactose in milk is almost completely dissolved. Lactose has a role in regulating gastric acid, promoting gastrointestinal motility and secretion of digestive glands, but also promote the absorption of calcium, as well as the role of the entire intestine, laxative.
Milk is rich in minerals, mainly calcium, phosphorus, magnesium, potassium, sodium, sulfur and zinc, manganese and so on. Among them, calcium is the most important and milk contains 120mg/100ml of calcium, which is a good source of calcium for human body.
Calcium in milk is mostly in the form of calcium caseinate, and the ratio of calcium to phosphorus is 1.4:1. Both vitamin D and lactose in milk help calcium absorption and increase the absorption rate of calcium.
Li Li, director of the Department of Nutrition of the First Affiliated Hospital of Xinjiang Medical University, introduced goat milk as one of the three major sources of human milk. Its nutritional value is high. It has a healthy heart and lungs, a large intestine, nourishing the kidney, nourishing yin, nourishing the stomach, and treating thirst. The function of diet. Goat milk is known as the "King of Milk" in the international nutrition industry, and the nutritional value of goat milk is also recorded in ancient China. In "Compendium of Materia Medica", it is mentioned that "the sheep's milk is warm, non-toxic, moistens the heart and lungs, and strengthens the kidney". .
Goat milk has low casein content and high whey protein content. The ratio of casein to whey protein in goat milk is 75:25, milk is 85:15, and human milk is 60:40. It can be seen that the proportion of milk protein in goat milk is closer to that of human milk.
Goat milk fat ball diameter is about 1/3 of milk. Goat milk is rich in short-chain fatty acids (about 5 times that of milk) and does not contain fat lectin (containing milk). The total amount of 10 vitamins per 100g goat milk is 780μg, 80μg more than milk, 285μg more than human milk. Especially vitamin C is 10 times that of milk, niacin 2.5 times that of milk, and vitamin B6 25% more than milk. Vitamin A is 47% more milk than milk and niacin is 35% more milk than milk. Goat milk contains slightly more inorganic salt than milk, with 30% more calcium than milk, 27% more selenium, 13% more potassium, and 60% more milk than cobalt. Times. Goat's milk is also rich in taurine and its content is 47.7mg/L, which is 10 times that of milk.
Buy milk or goat milk on demand
It can be concluded that the advantages of goat milk over milk are:
Goat milk is more easily digested and absorbed than milk. Goat milk contains more whey protein and less casein than milk, and the clot formed by its protein in the stomach is more easily digested and absorbed. Goat milk fat balls only 1/3 of milk, but also contains more unsaturated fatty acids, more easily absorbed by the small intestine.
Goat milk can avoid allergic reactions caused by most milk proteins. Certain proteins in milk, such as α-S1 casein and β-lactoglobulin, are currently recognized as allergens. Under normal circumstances, these two proteins can be digested and absorbed by the body, but if the body's digestive capacity is insufficient, undigested proteins can cause allergic reactions. In general, the infant 0 to 6 months is the most sensitive period, manifested as a rash or diarrhea.
The disadvantage of goat milk over milk is that:
Milk is more accessible and can meet the needs of the general population. The milk industry is developed and has a high market share. People can easily purchase qualified milk every day. Compared to milk, goat milk has a limited source and is less likely to be purchased.
Lack of folic acid in goat's milk, iron content is also low, as is fresh milk, so the use of goat milk or milk for artificial feeding or mixed feeding infants, should be fed adequate amount of folic acid or iron supplement food.
Therefore, milk is suitable for the general population; goat milk is suitable for infants, milk allergies and the elderly.
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