There are many kinds of vinegar, including rice vinegar, fragrant vinegar, white vinegar, bran vinegar and wine vinegar. Vinegar is made from grains and other things by fermentation. China's Henan, Shanxi, Zhejiang, Jiangsu and Northwest provinces almost all produce vinegar. As a condiment, vinegar can change the nature and taste of vegetables and make people feel delicious. For example, when cooking fish, the fishbone can be softened, so that the fishy smell becomes smaller, and the smell covers up the fishy smell. Eating cold salad, vinegar not only makes it taste good, but also inhibits the growth of bacteria. Soaking food with vinegar, such as vinegar garlic, can make it taste more delicious. Jealousy can get greasy. The smell of vinegar can stimulate the receptors of the nose and oral mucosa, and feed back to the digestive system and the whole body through nerves, which can increase appetite and help digestion. Vinegar can also directly act on food, making the peptide chain of protein and fat shorter, the molecules smaller and easier to absorb. In addition to seasoning in diet, increasing appetite and helping digestion, vinegar has many medical functions. Traditional Chinese medicine believes that vinegar has the functions of invigorating spleen, tonifying kidney and astringing lung, treating hepatitis by invigorating spleen and treating cerebral anemia by tonifying kidney and astringing lung. Chinese medicine also believes that vinegar has the function of softening and resolving hard mass, which can eliminate carbuncle. The astringency of vinegar can reduce swelling and treat sores and tinea. Vinegar contains a lot of nutrients such as phosphorus, calcium, iron, protein, carbohydrates and nicotinic acid. It is one of the sources of human nutrition, so it is good for your health to be jealous often. In fact, the saying that "jealousy is good for health" has been circulating for a long time. Apple vinegar was very popular in the United States five or six years ago, and several related books were published to teach people how to drink vinegar to keep fit. Jealous Japanese regard vinegar as a panacea to prevent all diseases. Various vinegar treatments, such as vinegar eggs and beans, often set off a wave of weight loss. There are also many people who practice drinking vinegar in their daily lives. There are many folk sayings about the health benefits of jealousy, such as jealousy promoting metabolism, eliminating fatigue, lowering blood pressure, preventing arteriosclerosis, regulating blood pH to prevent diseases, helping digestion and even losing weight. Which of these different health arguments are correct and credible? What lacks scientific basis? ● Vinegar can't adjust the pH of blood. Many people drink vinegar every day for health, because they think that although vinegar tastes acidic, it is an alkaline food after entering the human body, so it can adjust the pH value of blood and make people less likely to get sick. Under normal circumstances, human blood is weakly alkaline (about PH7.4). Nutritionists point out that a few foreign studies have found that people with alkaline blood are healthier, while people with acidic blood are at higher risk of illness. There is also a folk saying that eating meat will make the body sour, eating vegetables, fruits, drinking vinegar and so on. You can adjust your physique and return to an alkaline state. But can eating certain foods really change the pH value of blood? Many western nutritionists point out that there is no scientific basis to prove this statement, and even Chinese medicine does not agree with the statement that this diet changes the pH value of the body. Western nutrition believes that the human body has its own mechanism to maintain the balance of blood pH, which involves complex enzyme action, and I am afraid that it can't be changed just by eating a certain food. Low vinegar can't lose weight. Drinking vinegar to lose weight was all the rage. It was popular in Japan and Taiwan Province Province to soak soybeans in vinegar and pickle them into vinegar beans, claiming that eating 10 ~ 20 capsules every morning and evening can achieve the effect of losing weight. It is said that vinegar can improve human metabolism and prevent fat accumulation, but nutrition experts shake their heads and say that there is no exact research to support this claim. Some nutritionists theorize that if you really want to lose weight by drinking vinegar, it may be that your mouth is full of vinegar and you can't eat anything else, or that you have replaced your usual high-calorie snacks with vinegar beans. In contrast, your calorie intake will be reduced. However, this method of losing weight can't last long. In the long run, it will lead to nutritional deficiency and imbalance, which will consume a lot of health. Weng Huiling reminded that on the contrary, some vinegar products will add a lot of sugar to enhance the taste if they are vinegar drinks, and the calories are not low. When buying, you can pay attention to whether sugar is listed in the ingredient list, or whether it contains the calories and carbohydrate content marked by nutrition. Therefore, it is doubtful whether drinking vinegar can lose weight. ● Vinegar can stimulate appetite. The sultry summer makes people lose their appetite. Eating some hot and sour dishes can stimulate their appetite. Seasoning with vinegar is one of the simple methods, for example, using vinegar and olive oil to make oil-vinegar salad dressing with lower calorie than Thousand Island Sauce, using vinegar, minced garlic and pepper to make cold seafood, or using vinegar to pickle cucumber, lotus root and bitter gourd as appetizers before meals in summer. Nutritionists suggest that letting chronic patients with poor appetite and elderly people with degraded taste eat vinegar in moderation can adjust their appetite and improve their diet. ● Vinegar can stimulate gastric acid secretion and help digestion. A moderate amount of jealousy is helpful to some people with less gastric acid secretion. But people with normal digestive tract function don't have to drink vinegar to improve digestion. Moreover, people with normal gastric acid secretion will not necessarily increase the amount of gastric acid secretion if they drink vinegar again. ● Vinegar can prevent hypertension. "Less salt and more vinegar" is a traditional healthy diet for China people. Modern people who often eat out and eat a lot of processed food have already exceeded the recommended amount of 6 grams per day. If we can make good use of vinegar to increase the flavor of dishes and reduce the use of salt, we can really reduce the risk of diseases such as hypertension, arteriosclerosis, coronary heart disease and stroke. In addition, fruit vinegar contains mineral potassium, which can help the body discharge excess sodium and achieve the purpose of preventing hypertension. Of course, eating fresh vegetables and fruits can also achieve the same effect. Chinese medicine also uses vinegar to pickle peanuts as a dietary therapy to regulate blood pressure-soak peanuts in vinegar for more than 7 days, and then eat 10- 15 peanuts every day for more than a week. ● Vinegar can help intake calcium. When cooking ribs soup, you can add a small amount of vinegar, which will help release calcium from bones and make it easier for us to absorb calcium. After reading all the above statements, it is not difficult to find that many popular methods of drinking vinegar are mostly personal opinions and feelings, and scientific evidence is insufficient. In this case, is it necessary for us to be jealous and drink vinegar every day? According to experts, a moderate amount of jealousy is harmless to health. However, the health care function of vinegar can be achieved as long as the diet is balanced, and it is not necessary to drink vinegar. Therefore, there is no need to expect too much from vinegar, let alone think that it can cure diseases. Whether to drink vinegar every day is purely a personal diet and health preference. People who are not used to drinking vinegar occasionally mix a cup of vinegar for a change as a way to increase the fun of life. It is necessary to remind you of the timing and weight of jealousy. Improper diet will do harm to your health. ● Don't drink vinegar on an empty stomach. No matter how strong your stomach is, it is not suitable for drinking vinegar on an empty stomach, so as not to stimulate the secretion of too much gastric acid and damage the stomach wall. Drinking vinegar between meals, or one hour after meals, is less irritating to the gastrointestinal tract and helps digestion. ● At most 1-2 cups of diluted vinegar every day, a small amount of jealousy is harmless, but anyone who drinks vinegar in large quantities like a jealous jar is too irritating to the gastrointestinal tract. Moreover, fruit vinegar or other vinegar drinks on the market often add a lot of sugar. If vinegar is used instead of boiled water, tea and other drinks, it will increase a lot of calories. If you drink it for a long time, the probability of obesity will increase greatly, which is not conducive to weight control.