Traditional Chinese medicine believes that black food is the best food for tonifying kidney and has a good health-preserving effect. So, what are the black foods?
Health care function of black food in diet health care
Chinese medicine says: black food nourishes the kidney. Kidney belongs to water, and the black in the five elements dominates water and enters the kidney. Therefore, eating fungus, mushrooms, mulberries, laver, sea cucumber and black-bone chicken can tonify the kidney.
Modern viewpoint: All kinds of black food have high nutritional, health care and medicinal value. They can obviously reduce the incidence of arteriosclerosis, coronary heart disease, stroke and other diseases, and have good curative effects on influenza, chronic hepatitis, nephropathy, anemia, alopecia and so on.
Health care function of black food
Experts at home and abroad have found that the nutritional value of natural black animals and plants often exceeds that of light-colored ones. The darker the color, the richer the nutrition and the more balanced and reasonable the structure. Although there are many kinds of plant-based black food resources with different varieties and different nutritional components, the nutritional characteristics are the same in summary, and the most valuable functions are as follows:
1, pigment-flavonoid
Generally speaking, vegetable black food contains a lot of natural pigments. According to the analysis, the main components of these pigments belong to flavonoids, and the content is generally 1 ~ 3 times higher than that of the corresponding light-colored similar products.
2, carbohydrates-dietary fiber
Its seed coat (pericarp) or epidermis is rich in some natural pigments and dietary fiber. When natural pigment is used, it can provide an ideal source of dietary fiber. The content is 2 ~ 3 times higher than that of ordinary light-colored similar products.
3, protein essential amino acids
The protein content of black rice and black beans is higher than that of light-colored varieties 10 ~ 60% respectively. The protein consists of various amino acids with reasonable proportion and high proportion of essential amino acids.
4. Trace elements-iron, zinc and selenium
The mineral nutrition of black grain, oil and food resources is rich and comprehensive, and the trace elements such as iron, zinc and selenium are 1 ~ 3 times higher than their corresponding light-colored counterparts.
5, vitamins-VB, VA, VE
Black foods VA and VE stand out. Black rice contains vitamin C and vitamin A (original) which are lacking in general white rice. The content of VE in black food is 1 ~ 6 times higher than that in light food.
These nutritional characteristics of black food make black food have the most development advantages in several health food functions, such as delaying aging, beauty beauty, regulating blood lipid, anti-fatigue, dietary nutritional supplements and so on.
What are the black foods?
1, black peanut
Black peanut is a unique variety bred by Chinese researchers after 8 years of breeding, 3-year yield comparison test and resistance and adaptability test.
Black peanut is a typical alkaline food with excellent characteristics of high protein, high arginine, high sunshine and high potassium. The contents of arginine, potassium, selenium, zinc and vitamin E are higher than those of common peanuts 120%,10/%,100%, 49% and 28% respectively. In addition, it is rich in trace elements such as calcium, magnesium, phosphorus, manganese, etc., and its nutritional components meet the nutritional index of human body.
Melanin, in particular, can effectively maintain a virtuous cycle of the human body, remove excess lipids in the body, and prevent visible light and ultraviolet radiation. It is a natural golden partner to supplement human nutrition. Eating black peanuts regularly can strengthen the brain and kidney, blacken the hair and beautify the face, warm the stomach and moisten the lungs, protect the heart and protect the liver, and has a good preventive and health care effect on various chronic diseases of the elderly.
2. Black millet
Black millet is rich in trace elements and amino acids, which is especially necessary for human body. The contents of tryptophan, leucine and arginine are higher than those of other grains. Whether cooking rice or porridge, it is easy to be digested and absorbed by the human body, and the digestion and absorption rate is as high as 97.4%.
Black millet has a unique medicinal effect, which not only has the effects of tonifying deficiency, strengthening spleen and stomach, clearing away deficiency and heat, but also has the unique effects of nourishing yin and enriching blood, blackening hair and preventing aging, calming the nerves and helping sleep. Modern medicine believes that tryptophan can make brain cells secrete serotonin, make people sleepy, temporarily inhibit brain thinking activities and produce drowsiness. The tryptophan content in black millet is as high as 202 mg100g, which is beyond the reach of other foods. In addition, black millet is rich in digestible starch, which can make people full and warm, promote the secretion of human insulin, and further increase the amount of tryptophan entering the brain, so eating black millet porridge half an hour before going to bed can help people fall asleep.
3. Black sesame
Black sesame is rich in unsaturated fatty acids, which can strengthen the brain, improve intelligence and resist aging, and is also rich in zinc necessary for human body. Many people often eat black sesame seeds whole, but this is not conducive to human absorption. If black sesame is ground before eating, its nutrients will be more easily digested and absorbed. People who like to eat black sesame seeds, it is best to prepare a small mortar at home, or directly eat and grind it with a pulverizer.
4, eggplant, grapes with skin to eat
When many people eat grape eggplant, they are used to throwing away the skin. This way of eating virtually loses a lot of nutrition. This is because dark skin is rich in vitamins, dietary fiber and various trace elements. For example, purple grapes contain antioxidant groups with anti-aging effect, and their content in skin is much higher than that in pulp. Eggplant is rich in vitamin E and vitamin P, which can reduce cholesterol and improve capillary elasticity, and has a good protective effect on cardiovascular and cerebrovascular diseases. These nutrients are the highest in eggplant skin.
5. Black beans
Most people attach great importance to black fungus, fungi and seafood in black food, but ignore a black food-black beans. Black beans can tonify kidney, dispel wind and induce diuresis. They are both medicine and food, which can improve human immunity and help reduce the incidence of cardiovascular diseases. So eat more black bean products, such as black soybean milk and black tofu.
What black fruits are there?
1, black grape
The health care effect of black grapes is better. It is rich in minerals such as calcium, potassium, phosphorus and iron, and vitamins B 1, B2, B6 and C, etc. , but also contains a variety of amino acids needed by the human body. Eating black grapes often is of great benefit to neurasthenia and fatigue. After black grapes are made into raisins, the content of sugar and iron will be higher, which is a good tonic for women, children and the weak and anaemic.
2. Blackcurrant
Also known as blackcurrant and black bean fruit. Blackcurrant is rich in various nutrients and has great benefits to human health, so it is very popular in Europe and other places. However, in the domestic market, only fruit juice and jam processed from blackcurrants can be seen, and there are few fresh fruits.
3. Mulberry
Mulberry tastes sour and juicy, but its character is slightly cold. Women should eat less when they come to their period to prevent cold and stomachache. Besides being eaten raw, mulberry can also be made into mulberry pudding, mulberry cake, mulberry jam, mulberry fruit salad and so on.
4. Wu Mei
It is rich in vitamin B2, potassium, magnesium, manganese and phosphorus. Modern pharmacological research holds that "people with alkaline blood live longer". Mume is an alkaline food, because it contains a lot of organic acids, which will be quickly converted into alkaline substances after being absorbed by the intestinal wall.