Soybean is known as the "king of beans", as "plant meat" and "green cow", with the most abundant nutritional value. Dry soybeans contain about 40% high-quality protein, which is the highest among other cereals. Modern nutrition research shows that one catty of soybean is equivalent to two catties of lean pork, or three catties of eggs, or twelve catties of milk with protein content. The fat content also ranks first among beans, and the oil yield reaches 20%; In addition, it also contains vitamins A, B, D, E and minerals such as calcium, phosphorus and iron. A catty of soybean contains 55 mg of iron, which is easily absorbed and utilized by the human body and is very beneficial to iron deficiency anemia; A kilo of soybean contains 2855 mg of phosphorus, which is very beneficial to the brain and nerves. All kinds of bean products after soybean processing not only contain high protein content, but also contain many essential amino acids that cannot be synthesized by human body. The protein digestibility of cholesterol content in tofu is as high as 95%, which is an ideal tonic and dietetic product. Soybean, bean products such as tofu and soybean milk have become popular healthy foods all over the world.
2, efficacy and role
(1) Reducing blood lipid
Soybean contains phytosterol, which can effectively reduce cholesterol in blood. When phytosterols enter the intestine, they compete with cholesterol, thus reducing the absorption of cholesterol. Moreover, phytosterol can reduce "bad cholesterol" in blood, but it will not affect "good cholesterol" in blood.
(2) Prevention of vascular sclerosis
Soybean can prevent angiosclerosis, cardiovascular diseases and protect the heart. Lecithin in soybean also has the function of preventing excessive accumulation of liver fat, thus effectively preventing fatty liver caused by obesity.
(3) lowering blood sugar and blood lipid
Soybean contains a substance that inhibits pancreatic enzyme and has therapeutic effect on diabetes. Saponins contained in soybean have obvious hypolipidemic effect, and at the same time, can inhibit weight gain.
(4) Whitening and skin care
According to Japanese researchers, linoleic acid contained in soybean nutrition can prevent skin melanin synthesis. Soybean can also effectively improve skin aging and delay menopausal syndrome.
(5) Prevention of Alzheimer's disease
Eating more soybeans in moderation at ordinary times can also effectively prevent Alzheimer's disease. Moreover, there is a substance called sterol in soybean, which can effectively increase nerve function and thus promote its vitality.
(6) Prevention of cancer
Soybeans also have the function of preventing cancer. Soybean has a certain inhibitory effect on different cancers, especially on breast cancer.