4hw.com.cn: parents of new born babies hope to supplement the nutrition they need in their bodies in all aspects, which is not only conducive to strengthening their babies' physical fitness, but also plays a very important role in their growth. Now there are two options for their baby's diet, one is human milk feeding, the other is milk powder. We all know that milk powder contains some dimensions What is the nutritional value of human milk?
Five nutrients of human milk
1. Protein: the protein content of human milk is relatively low, 1.1-1.3g/dl. It consists of casein, which provides amino acids and inorganic phosphorus, and lactoalbumin. Milk white protein accounts for about 2 / 3 of the total protein, and its main components are & alpha; - milk white protein, lactoferrin, lysozyme, albumin, rich in essential amino acids, high nutritional value, small clots formed in the stomach, which is conducive to digestion and absorption.
2. Carbohydrate: lactose content in human milk is 6.5-7.0g/dl, which is higher than that in cow milk (4.5-5.0g / dl). It is the main source of heat energy for infants within 6 months after birth.
3. Fat: in the form of fine particles (diameter & lt; 10 & mu; m), the content of oleic acid is twice as much as that of milk, while the content of volatile short chain fatty acid is seven times less than that of milk, and the content of long chain unsaturated fatty acid is more, which is easy to digest and absorb.
4. Vitamin: the content of vitamin A, e and C in normal milk is higher, while the content of vitamin B1, B2, B6, B12, K and folate is less, but it can meet the physiological needs.
5. Minerals: the mineral content of human milk is about 1 / 3 of milk. The content of calcium and phosphorus in human milk (33:15) is lower than that in cow milk (125:99), but the proportion of calcium and phosphorus is suitable (2:1 in human milk, 1.2:1 in cow milk). The absorption of calcium is good, so hypocalcemia is less in human milk fed infants. The content of iron in human milk and cow's milk is low, but the absorption rate of iron in human milk is significantly higher than that in cow's milk. The content of zinc in human milk is lower than that in cow's milk (0.17-3.02mg/l for human milk, 1.7-6.6mg/l for cow's milk), but its bioavailability is high. Because there is a small molecular weight ligand (ligand) in human milk, it can promote the absorption of zinc.
When breastfeeding, the baby must pay more attention to its own diet. During the feeding period, it needs to supplement the nutrition needed in the body in all aspects. It is not allowed to smoke, drink and eat some spicy and stimulating food. At the same time, it is better not to eat some harmful food to ensure the quality of good human milk, which is conducive to the development of the baby.