Vinegar can be roughly divided into three types, namely brewing vinegar, synthetic vinegar and white vinegar. The largest number in China is fermented vinegar. Scientific analysis shows that fermented vinegar contains not only 5%-20% acetic acid, but also organic acids such as amino acids, lactic acid, succinic acid, oxalic acid and nicotinic acid, minerals such as protein, fat, calcium, phosphorus and iron, vitamin BI, vitamin B2, sugar and aromatic substance ethyl acetate. The content of organic acids and amino acids in rice vinegar made from rice is the highest.

Modern medicine believes that vinegar has the following functions in treating diseases and preserving health:

1, eliminating fatigue;

2. Adjust the acid-base balance of blood and maintain the relative stability of human internal environment;

3, help digestion, which is conducive to the absorption of nutrients in food;

4, anti-aging, inhibiting and reducing the formation of peroxide in the process of human aging;

5. Strong bactericidal ability, which can kill staphylococcus, Escherichia coli, dried bacteria, halophilic bacteria, etc. In the intestine;

6. Enhance liver function and promote metabolism;

7. Dilating blood vessels is beneficial to lowering blood pressure and preventing cardiovascular diseases;

8, enhance renal function, have diuretic effect, and can reduce urine sugar content;

9, can make the body's excess fat into physical exertion, and promote the metabolism of sugar and protein, which can prevent obesity;

10, vinegar also contains anticancer substances.

Low vinegar can't adjust blood pH value.

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.

● Vinegar cannot lose weight.

Drinking vinegar to lose weight used to be all the rage. It is popular in Japan and Taiwan Province Province to soak soybeans in vinegar and pickle them into vinegar beans. It is claimed 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 the traditional way for China people to eat healthily. However, modern people eat a large number of processed foods with high frequency, and the salt intake exceeds 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 absorb 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 gastrointestinal tract 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 harm the stomach wall. Drinking vinegar between meals, or one hour after meals, is less irritating to the gastrointestinal tract and helps digestion.

● Up to 1-2 cups of diluted vinegar per day.

A small amount of jealousy is no problem, but anyone who drinks vinegar in large quantities like a jealous jar will stimulate the gastrointestinal tract too much. 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.