Pure milk is more nutritious. Soymilk is just a soy-based beverage.
Fresh milk, also known as pure milk, is a milky white or yellowish homogeneous gelatinous fluid with no sediment, no clots, no impurities, no starch, and no odor. Fresh milk is mainly composed of water, fat, protein, lactose, minerals, vitamins and other components of a complex latex, in which the water content of 86% to 90%, so its nutrient content is relatively low compared with other foods.
The specific gravity of cow's milk is 1.032 on average, and the size of specific gravity is related to the content of solid substances in milk. In addition to the relatively large changes in the fat content of the various components of the milk, the other components are basically stable, so the specific gravity can be used as a simple indicator to assess the quality of fresh milk. The protein content of cow's milk is 2.8%~3.3%, mainly composed of 79.6% casein, 11.5% whey protein and 3.3% lactoglobulin, and a small amount of other proteins, such as immunoglobulins and enzymes.
Where 20 ℃ in pH 4.6 precipitation of cow's milk protein is called casein. Casein is a heat-resistant protein, but can be precipitated in acidic conditions, yogurt and cheese is made on this principle. In milk casein combines with calcium and phosphorus to form casein gels, which are present in the milk as a colloidal suspension. Whey proteins are thermally unstable and coagulate and precipitate when heated. The digestibility and absorption rate of cow's milk protein is 87%~89%, and the biological value is 85, which is a high-quality protein.
The nutrients contained in the more complete, high nutritional value and easy to digest and absorb, the most suitable for patients, young children and the elderly to eat. The first thing you need to do is to drink the milk on an empty stomach. Some people like to drink milk early fasting, in fact, this is not scientific, because eating on an empty stomach, stomach peristalsis faster, the nutrients in the milk can not be digested in time, the absorption was discharged to the colon, resulting in a lot of nutrient loss and waste, so it is best to drink milk before eating some steamed buns, cookies, bread and other food and then drink the milk, so that the milk nutrients in the role of the full play, conducive to the digestive and absorptive.