Nutritional effects
Caloric energy: the caloric value of dry red wine is equivalent to the caloric value of milk. l liters of 10 degrees of dry red wine has a caloric value of 560 kcal, mainly the heat energy provided by the alcohol when it is oxidized. In the case of sweet wines, the sugar in them is also a major source of heat energy.
Amino acids: There are eight amino acids that the human body cannot synthesize on its own, which are called "essential amino acids". These eight "essential amino acids" are found in both grapes and wine. This is not comparable to any other fruits and drinks, so people call wine "natural amino acid food", and it is approved by the United Nations Health and Food Organization as the healthiest and most hygienic food. In red wine, the content of these eight amino acids is very close to the content of human blood, and regular moderate drinking can effectively supplement the body's needs.
Minerals: Wine contains minerals including "trace elements" (such as iron, zinc, copper, manganese, iodine, chromium, etc.) and calcium, magnesium, phosphorus, etc., which are also nutrients needed by the human body.
Others: Wine also contains a variety of B vitamins, as well as vitamin C and vitamin P and other nutrients needed by the human body.
Health effects
Appetizing and strengthening the spleen, aiding digestion, and preventing constipation
The natural acidity of grapes is all dissolved in wine, and its acidity is close to that of gastric acid (pH 2~2.5). Therefore, wine, as a good accompaniment to meals, can help digestion and absorption of protein. In addition, wine contains sorbitol, which favors the secretion of bile and pancreatic juice, not only enhances the digestion and absorption of food in the gastrointestinal tract, but also adjusts the function of the colon, which is effective in treating colitis. Therefore, drinking wine before meals, especially for middle-aged and elderly people, can help digestion and is very beneficial to the body. At the same time, the tannins in wine can increase the contractility of intestinal muscle fibers, and the potassium tartrate and potassium sulfate, which can diuretic and prevent edema.
Preventing cardiovascular disease
Wine contains more anthocyanin, proanthocyanidin, tannin and other substances, which have obvious vasodilatation and enhance the role of vascular permeability. These substances are more abundant in red wine than in white wine. Modern medicine points out that the culprits of cardiovascular diseases are high levels of cholesterol and blood lipids in the blood. The body's HDL, which transports cholesterol from the blood vessels to the liver, is then converted into hormones that are useful to the body, and the excess is excreted in the stool. Moderate consumption of wine, especially red wine can make HDL in the body to increase and reduce the level of cholesterol and blood lipids in the blood, and thus can prevent atherosclerosis and heart disease.
For example, in the French dietary life, its representative foods such as whipped cream, butter, cheese, etc. contain a large amount of animal fat. The French consume almost 4 times as much saturated fatty acids as Americans and Britons, but strangely enough, the chances of the French suffering from atherosclerotic heart disease is only 1/3 of that of the Americans and Britons.
The French paradox is that the French drink wine at every meal, especially red wine. drinking red wine habits related.
Preventing strokes
Some studies have shown that red wine is an incredible anticoagulant. Drinking a little red wine on a regular basis can thin the blood and play a role in stopping the formation of blood clots in the blood vessels, thus preventing the occurrence or attack of cardiovascular and cerebrovascular diseases. In a study, French scientists confirmed that red wine both inhibits platelet aggregation and thus prevents the formation of blood clots, and also raises the level of high-density lipoproteins. Therefore, the researchers claimed that the anticoagulant effect of red wine on cardiovascular protection is unique. New evidence suggests that wine drinkers are less likely to have a stroke. In a 16-year study of more than 10,000 subjects, it was found that people who drank one to six glasses of red wine per week had a 34 percent lower incidence of stroke compared to those who drank no or very little alcohol. As a result, Dr. John Foltz, a cardiovascular disease expert at the University of Wisconsin School of Medicine, said, "Drinking red wine produces an anti-thrombotic effect in human blood, which is more effective than taking aspirin, which can cause stomach upset.
Anti-aging
Red wine is a powerful exogenous antioxidant. Free radicals are associated with disease and aging in humans, and antioxidants stop free radicals from attacking the body's cells by scavenging them. The body produces effective endogenous antioxidants, but the body also needs to supplement this defense system with exogenous antioxidants. Red wine is one of six known powerful exogenous ant
oxidants (specially prepared fresh olive oil, tea, fruits, vegetables, red wine, vitamin antioxidants). The antioxidants licensed in red wine can act on reactive oxygen groups in a variety of ways, the simplest of which is scavenging the active substance. Salicylic acid, benzoic acid and their metabolites in wine belong to this category of antioxidants, the scavengers of reactive oxygen species. Another important way of eliminating reactive oxygen species is for the antioxidant to provide it with a hydrogen ion that binds to the oxygen radical and removes it. Catechols and anthocyanins in wine are known to scavenge oxygen radicals.
Resveratrol-rich
Scientists have isolated resveratrol, the active ingredient in the health care function of red wine, which is chemically known as trihydroxystilbene, a polyphenol first reported by American scholars in 1992, and a plant antitoxin produced by plants of the genus Grapevine under ultraviolet light irradiation. Scholars at home and abroad generally believe that resveratrol has an extremely strong antioxidant property, which can effectively eliminate free radicals, inhibit various oxidative reactions that cause atherosclerosis and thrombosis, promote the circulation of blood and reduce vascular wall deposits, and have a special effect on the prevention of heart disease and stroke. As a healthcare drink for middle-aged and elderly people, red wine can prevent Alzheimer's disease. What's more encouraging is that resveratrol has definite cancer prevention activity, and its antioxidant and antimutagenic function can block the three periods (initiation, development and proliferation) in which cancer occurs.
Precautions in drinking
The conclusion of a large amount of research data is unanimous: the key to good health effects of red wine is moderation and regularity. Most experts recommend drinking between 50 and 200 milliliters of red wine a day, and within this range, the choice can vary from person to person. As has been pointed out, wine is a double-edged sword, and red wine is no exception. Drinking it in moderation and on a regular basis has good health benefits, while large quantities or excesses are counterproductive. Experts also point out that alcohol (including red wine) should not be consumed by those suffering from liver disease, by women with a predisposition to breast cancer, or by women who are pregnant.
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