Why you can't eat fruits and vegetables immediately after a meal can be said to be synonymous with health. Many people love to eat fruit, but many people think that eating fruit after meals is bad for their health. Let's learn more about why you can't eat fruit immediately after a meal and related knowledge.

Why can't I eat fruit immediately after dinner? 1 In our daily food, the main ingredients are fat, sugar and protein. The residence time of these foods in the stomach is roughly: sugar is about 1 hour, protein is 2-3 hours, and fat is 5-6 hours.

Eat fruit immediately after meals. Slow-digesting starch, protein and fat will affect fast-digesting fruits. These things will stay in the stomach for an hour or two or even longer, react chemically with digestive juice, decompose and then enter the small intestine for absorption. The fruit will be blocked and stagnated in the stomach and rot at the high temperature of Fahrenheit 104 degrees.

The main component of fruit is fructose, which produces fermentation reaction or even corruption at high temperature in the stomach, produces alcohol and toxins, and has symptoms such as flatulence and constipation, which has adverse effects on the digestive tract. Causes various diseases, including heartburn, indigestion, abdominal pain, etc.

Fruits also contain compounds similar to brass. If it is not digested and absorbed in the small intestine in time, it will be converted into dihydroxy benzoic acid by bacteria in the stomach after being blocked by food, and the vegetables eaten contain thiocyanate, which will interfere with thyroid function and lead to non-iodine goiter.

Pay attention to four points when eating fruit:

1. Many components in fruit are water-soluble. Eating before meals is beneficial to the absorption of essential nutrients.

2. Fruit is a low-calorie food, and its average calorie is only about 1/4 of the same weight of pasta and110 of the same weight of pork and other meats. Eating low-calorie food first makes it easier to grasp the total calorie intake of a meal.

3. Many fruits are easily oxidized and spoiled. Eating fruit first can shorten its residence time in the stomach, reduce the degree of oxidative corruption and reduce the possible adverse effects on the body.

4. Children are in a long physical period, and some women belong to the constitution of "spleen and stomach deficiency and cold" mentioned by Chinese medicine. It is inappropriate or inappropriate to eat fruit before meals. This group of people can eat fruit once between meals.

Why can't I eat fruit immediately after dinner? When is the most scientific time to eat fruit?

Different fruits should be eaten at different times.

Hawthorn: Not suitable for eating in the morning.

Hawthorn has the functions of removing blood stasis, resolving phlegm and detoxicating, heatstroke prevention and cooling, and stimulating appetite. However, people with an empty stomach or weak spleen and stomach should not eat in the morning, and those with gastritis and hyperacidity should eat less.

Jujube: Take vitamin C supplements before meals.

Jujube contains a lot of vitamin C, so it is best to eat it before meals.

Pineapple: Eating after meals helps digestion.

Fresh pineapple contains protease. If you eat on an empty stomach, the proteolytic enzymes of pineapple will damage the stomach wall, and a few people will also cause allergic reactions. So it should be eaten after meals, which can also help digestion.

In addition, we should also pay attention to the eating time of most fruits. The correct time to eat fruit is 65438+ 0 hour before meals and about 2 hours after meals (except persimmons).

In addition, don't eat fruit before going to bed at night, or your stomach will affect your sleep. Never think that eating fruit is a trivial matter. Only by eliminating these misunderstandings can we cultivate truly healthy living habits.

Why can't I eat fruit immediately after dinner? Why does eating fruit at night hurt your health?

The reason why eating fruit at night is bad for your health is that fruit contains a lot of fructose.

The chief culprit of fatty liver and visceral fat is sugar, especially fructose and sugar (sucrose). Because fructose molecules are small, it is easy to quickly become fat after absorption. Can the cause of fatty liver be excessive sugar intake?

About 1300 patients with fatty liver were followed up for about five years. At that time, it was generally believed that the three major causes of fatty liver were obesity, diabetes and excessive drinking, but it was found that many cases were actually "unexplained fatty liver" that did not meet the above three conditions.

This shows that it can't be "obesity" of course. The real reason for further emergence is "unbalanced diet", especially "excessive sugar intake".

According to the questionnaire survey on the eating habits of patients with fatty liver, it is worth noting that some people use a lot of fruits instead of vegetables, and often drink canned coffee or fruit and vegetable juice.

In addition, in the past five years, these patients with fatty liver were invited to assist in the investigation and write down their diet. It was found that after five years, on the whole, patients who reduced carbohydrate intake improved fatty liver more than patients who reduced lipid intake.

So, experts do experiments with rabbits. Three rabbits were fed with sucrose, fructose and starch continuously. Results The rabbits with the most liver fat were fed fructose feed, followed by sucrose and starch.

In other words, fructose and sugar (sucrose) are more easily converted into fat than starch, even if they are the same carbohydrates. I think the difference is naturally that the size of various sugar molecules is different, that is, it varies with the absorption speed. Fructose, the smallest molecule, can be absorbed from the small intestine at the fastest speed, enter the liver through the portal vein and synthesize triglycerides.

A survey report investigated the correlation between carbohydrate intake and the incidence of metabolic syndrome in10.2 million people.

The survey results show that the higher the proportion of carbohydrates, the higher the proportion of men suffering from metabolic syndrome. Men who consume more than 60% of total calories are more likely to develop metabolic syndrome 1.7 times than men who consume 40% to 60%.

Fruit contains vitamins, minerals and dietary fiber. Of course it has its advantages, but the daily intake should be controlled within 200 grams. In addition, eating more than 50 grams of sugar every day will increase triglycerides. Of course, foods such as white rice or bread are also sugar, so don't eat too much. However, you must not lose weight because of this.

Because sugar is also the only source of energy for the brain, it is estimated that the brain consumes about 500 calories a day, all of which comes from glucose that breaks down carbohydrates. Losing weight without eating carbohydrates will of course lead to insufficient brain energy.

In this case, the brain will use liver sugar stored in the liver as energy in an emergency, but the storage of liver sugar can only last for two days at most. After eating, the liver will make sugar from protein.

At this time, the body without protein? The body will play the role of protein in muscles. In other words, sacrifice muscles for the brain.