Protein is a nutrient that plays an important role in human health, so protein's nutritional supplement has been closely concerned by athletes, coaches, researchers and even the general public.
People can get a lot of protein from their diet, but due to the reasons of time and cooking methods, it is difficult to supplement the needed protein conveniently and timely. In addition, high-protein food will also bring many disadvantages. For example, containing excessive saturated fat, cholesterol, concentrated hormones, antibiotics and other harmful substances can easily lead to the increase of human fat and cholesterol, leading to the occurrence of cardiovascular diseases and affecting health. Therefore, it is necessary to supplement protein powder in an appropriate amount.
First of all, the nutritional value of whey protein is the highest among all kinds of protein products, and its protein titer, biological titer and net protein utilization rate are better than casein and soybean protein. At the same time, whey protein is rich in cysteine and methionine, which can maintain the level of antioxidants in human body and stabilize DNA as much as possible during cell division. Experiments show that whey protein can also stimulate human immune system, prevent the occurrence of cancer induced by chemicals, increase bone strength and reduce the level of low-density lipoprotein cholesterol.
Secondly, its absorption speed is fast, and the nitrogen in muscle can reach the peak within a few minutes after taking it, thus providing a large number of essential amino acids.
Thirdly, the amino acid composition of whey protein is closer to the needs of human body than soybean protein, and it is easier to be used by human body. Therefore, whey protein is the first for consumers. Especially for the elderly, convalescent patients, pregnant and lactating women, dieters, athletes and bodybuilders, it is more scientific to take whey protein.
Now the soybean protein on the market is completely protein, and its essential amino acids can basically meet the needs, and the price is much cheaper. At the same time, the combination of soybean protein hydrolysate with phospholipid or chitosan can improve cholesterol metabolism and significantly reduce plasma cholesterol, triglyceride and low-density lipoprotein, without affecting plasma high-density lipoprotein, thus reducing the occurrence of coronary heart disease. In addition, there is a substance called isoflavone in soybean protein, which has many special functions while promoting lipolysis and lowering cholesterol: anti-oxidation, cancer prevention, promoting bone calcification, inhibiting the proliferation of breast cancer cells, preventing complications of diseases such as hypertension and diabetes, and so on. In addition, isoflavone is a natural substance similar to female hormones and can be used as a hormone substitute for menopausal women. Because it is not only effective, but also very mild, unlike taking estrogen directly, it will have side effects. Therefore, soy protein is the first choice for menopausal women and people with coronary heart disease, hypertension and arteriosclerosis.
The difference between whey protein and soybean protein is that whey protein is the best source of protein and soybean protein is the most economical source of protein.