The key to natto's contribution to Japan's longevity is that its nutritional structure is both comprehensive and rare. Most of the nutrients it has are necessary for human beings and can resist the invasion of modern civilization diseases. It is a treasure given to human beings by nature. < P > protein in natto accounts for almost 35%. Protein is composed of 2 different amino acids, 12 of which can be synthesized by the human body, called "non-essential amino acids"; The other eight kinds of amino acids can't be synthesized by human body and can only be supplemented from daily diet. These amino acids are called "essential amino acids". Surprisingly, natto protein contains almost all essential amino acids, which is very rare in other plant foods.
1. Tryptophan, a natural hypnotic, is an essential amino acid. Tryptophan can be combined with vitamin B6, nicotinic acid and magnesium in human body to produce the neurotransmitter serotonin with analgesic, hypnotic and sedative effects. Therefore, tryptophan is known as a "natural hypnotic" in the United States, and serotonin can also ease anxiety and tension, and control depression. The serotonin content of patients with depression is generally low, which may be related to their low intake of tryptophan.
Serotonin can also be turned into melatonin in the thalamus and pineal gland. Melatonin is regarded as a "youthful thing" by the medical community and is a very magical substance. Melatonin has a good stimulating effect on human immune system, can enhance human immune ability and anti-cancer ability, and has the same effect as melatonin, so it has attracted much attention.
The latest research report also reveals that tryptophan can not only produce serotonin, but also regulate cholesterol and blood pressure, improve sexual function, relieve menopausal symptoms and alleviate and improve many diseases.
every 1g of natto contains .2g of tryptophan.
2. Lysine, the basic substance of antibody and hormone, is also an essential amino acid for human body. Every 1g of natto contains 1.3g of lysine. Although lysine is not needed by the body, it plays a very important role. It is the basic substance for the body to make antibodies, hormones and enzymes. Antibodies, hormones and enzymes are essential substances for human physiological activities. If any hormone in the human body is insufficient or abnormal, it will cause disaster. Therefore, lysine is an indispensable basic substance for human body in any case. Lysine also has the functions of promoting glucose metabolism, lowering blood sugar and eliminating body fatigue. If the body can take enough lysine, it can effectively prevent the occurrence of diabetes. In addition, lysine can also improve the detoxification and detoxification function of the liver.
3, the nemesis of fatty liver-threonine
Among all essential amino acids, threonine was the last one discovered by scientists, so its function is also the most eye-catching. Experts found in clinical investigation that the threonine content in patients with fatty liver is quite low. So what is the internal relationship between threonine and fatty liver? It turns out that threonine gradually accumulates in the liver after entering the human body, and tissue fat accumulates in the liver, thus effectively organizing the formation of fatty liver. Experts also found that threonine can also promote human growth and development, such as threonine deficiency, in addition to fatty liver, it will also lead to symptoms such as loss of appetite, anemia, weight loss, and these symptoms will gradually improve after ingestion of threonine.
every 1g of natto contains .8g of threonine.
4. Methionine, the diluent of ammonia, is an amino acid with the most unique function. After methionine enters the body, it will quickly enter the blood and dilute the concentration of histidine in the blood. Group ammonia is a chemical substance in the human body. Under normal circumstances, group ammonia has no activity and will not affect the physiological activities of the human body. However, once the body is injured or has a drug reaction, group ammonia will be activated, releasing a large number of inflammatory factors, resulting in vasodilation, itchy skin, pain and severe allergic reactions. When the body has an inflammatory reaction, doctors usually use anti-group ammonia drugs, and methionine is actually the most ideal natural anti-group ammonia "good medicine". As long as enough methionine is ingested at ordinary times, even if the body is injured or there is a drug reaction, there will be no too severe inflammatory reaction. In addition, methionine has the function of improving depression and comprehensive disorder. Scientists have also found that once methionine is deficient, cholesterol deposition, atherosclerosis and hair loss will occur.
every 1g of natto contains .2g of methionine
5. phenylalanine, which is the main substance involved in the restoration of kidney and bladder functions, is also an important substance for making neurotransmitters and is an essential amino acid. The intake of phenylalanine is helpful to improve brain function and depressive symptoms. Recently, scientists have also found that phenylalanine is also the main raw material for repairing the urinary system such as kidney and bladder, so taking a proper amount of phenylalanine is definitely helpful to improve renal function.
6. Isoleucine, an essential substance involved in the regulation of thymus function, is also one of the essential amino acids in the body. Previous studies believe that the body cannot lack isoleucine mainly because it has the functions of promoting the growth of the body and smoothing the nerve conduction system. In addition, it also has the function of dilating blood vessels and improving liver function. Recently, scientists have found that isoleucine plays more than that, and it is particularly important that it participates in the regulation of thymus and pituitary function. Thymus is an immune organ, and the size and function of thymus often affect the immune system of human body. Therefore, isoleucine is an indispensable nutrient for the body.
every 1 grams of natto contains 1 gram of isoleucine
7. Leucine, an important substance for improving liver function, is an essential amino acid that the body needs the most every day, and its main function is to improve the detoxification and metabolic function of the liver. The most direct harm of the lack of leucine in the body is that the disease resistance of the human body is getting worse and worse, and it is very easy to get sick.
every 1g of natto contains 1.6g of leucine
8. As an essential amino acid, valine, which is indispensable for maintaining the balance of female endocrine system, seems to have a greater effect on women, because valine is very important for the development of women's mammary glands and ovaries after entering the human body. If the intake of adolescent women is insufficient, it is very likely to affect the formation of menstruation, the secretion of sex hormones, and finally lead to endocrine imbalance.
In addition, valine can also regulate the balance of blood nitrogen. If the nitrogen content in human blood is too high, it will affect the function of nerve tissue, while the intake of valine can effectively reduce the concentration of blood nitrogen, make the nitrogen content of the body tend to normal level, and avoid harm to human body.
every 1g of natto contains 1g of valine
9. Glutamic acid, an activator of brain function, is the main amino acid in protein, accounting for about one third of the total amino acids in human body. After long-term research, scientists have found that glutamic acid has a unique function of activating brain nerves. It turns out that after glutamic acid enters the human body, it will react chemically with the toxic substance-nitrogen, and evolve into glutamine, which will promote urination and excrete it quickly. Ammonia is the killer of the brain nerve and will inhibit the function of the brain. Therefore, the intake of glutamic acid can activate the function of the brain, improve people's intelligence, and at the same time, it can effectively treat schizophrenia and Alzheimer's disease, and it also has a good auxiliary treatment effect on ulcers.
natto is rich in glutamic acid, and every 1g of natto contains 3.4g of glutamic acid, accounting for about 2% of the amino acids in natto, which means that 1/5 of the amino acids in natto are composed of glutamic acid.
1 grams of natto contains 31.2 grams of protein, which contains all essential amino acids with good amino acid balance, and is rich in unsaturated fatty acids, linoleic acid, phospholipids and lecithin, as well as minerals and vitamins, especially vitamin B12 for enriching blood.