It is advisable to eat fruit before meals 1 hour and two hours after meals. Eating a proper amount of fruit before meals 1 hour is good for the stoma
It is advisable to eat fruit before meals 1 hour and two hours after meals. Eating a proper amount of fruit before meals 1 hour is good for the stomach. It is not advisable to eat fruits immediately after meals, because this will affect the absorption of protein, fat and vitamins.
In addition, the content of thiocyanate in vegetables, especially radish, Chinese cabbage and cauliflower, is high, and thiocyanate can be metabolized in the body; However, bright fruits such as apples, pears and grapes contain a certain amount of flavonoids, which are decomposed by bacteria in the intestine and converted into trihydroxybenzoic acid. The interaction between thiocyanate and trihydroxybenzoic acid can interfere with human thyroid function, lead to non-iodine deficiency goiter and affect people's normal physiological metabolism.
Therefore, the best time to eat fruit should be 65438+ 0 hour before meals or 2 hours after meals.
Fruits need to be cooled down. Fruits that have just been picked from trees in summer, it is best to leave them for half a day until the heat dissipates. The fruit that has just been taken out of the refrigerator should be put aside for a while before eating. Eating them immediately will make you feel too cold, which is not good for your stomach and is easy to cause bloating or diarrhea.
Moldy fruit cannot be eaten. Fruit is high in water content, suitable for mold growth and easy to mildew. In recent years, it has been found that moldy fruits contain a kind of toxin: cyanotoxin, which is very toxic and cannot be taken lightly. Where the fruit is attacked by mold, the peel becomes soft, forming diseased spots, sinking and the pulp is soft and rotten. Mold grows and reproduces in the pulp and produces toxins.
According to the determination, toxins can still be detected in the normal dental pulp at a distance of 1 cm from the decaying site. Therefore, we should choose fruits with bright skin color, freshness, crispness, fragrance and sufficient moisture. If there is a little spot or a small amount of insect-eaten, use a knife to dig out the rotten insect-eaten place and the good fruit parts around it above 1 cm. Fruits that rot or are eaten by insects over 1/3 or have bitter taste are inedible.
Fruit juice can't replace fruit.
Drinking juice is not as much as possible. Drinking too much juice has some negative effects on health. Fruit juice will dilute gastric acid and affect digestion and absorption, which will lead to malnutrition in the long run.
In addition, most of the cellulose is lost in the process of juicing, so drinking juice alone is easy to make people lack cellulose; The cellulose rich in fruits is very beneficial to prevent and reduce many diseases. It should also be noted that if you drink too much juice, you will lose your appetite and affect your appetite for dinner.
You should eat moderate amounts of fruits and vegetables.
Although fruits and vegetables are rich in vitamins, minerals and dietary fiber, it is not good for some fruits and vegetables to eat too much. For example, spinach, vegetables, celery, tomatoes and strawberries contain more oxalic acid, which is easy to form calcium oxalate stones when combined with calcium in other foods. This is also one of the reasons why many vegetarians are prone to lithiasis.
Most fruits and vegetables are alkaline. For patients with calcium phosphate stones, eating a lot of alkaline fruits and vegetables every day will increase the number of stones and it is not easy to excrete them.
Eating more fruits and vegetables does not exclude meat. When eating fruits and vegetables, you should also eat some meat. The ratio of fruits and vegetables to meat is 6: 1. The reasonable combination of vegetables and meat is conducive to maintaining the acid-base balance in the body, because meat, eggs and other foods are acidic foods, while vegetables, tea and fruits are mostly alkaline foods. Excessive rejection of meat food may lead to insufficient nutrient intake and decreased immunity.
In fruits and vegetables, except beans, which are rich in protein, the content of protein in other foods is very low, so it is not easy to be absorbed by human body. However, foods such as chicken, duck and fish can be an important source of nutrition, providing enough protein and fatty acids, as well as vitamins and trace elements that the human body is easy to lack.
Therefore, the combination of meat and vegetables can better preserve health. For example, potato beef has high nutritional value and can strengthen the spleen and stomach. Eating beef in winter can also warm the stomach, but beef with thick fiber will stimulate the gastric mucosa. Eating potatoes can protect the stomach, and potatoes are also very nutritious.
In addition, fish with tofu is also a nutritious dish. Fish is rich in methionine and low in phenylalanine, while tofu is the opposite. Eating the two together can complement each other. Tofu contains more calcium, which just improves the absorption rate of calcium by vitamins in fish.
Wash the vegetables first, then cut them.
In order to save trouble, some people will cut vegetables first and then wash them together, which will make a lot of vitamins flow into the water in vain. So the correct way is to wash vegetables first and then cut them.
Minimize storage time. Some people like to do big shopping once a week and store the vegetables at home and eat them slowly. Although it is time-saving and convenient, you should know that vegetables lose a lot of nutrients every day, such as spinach. Under normal circumstances (20℃), vitamin C will be lost as high as 84% every day.
Don't "pick up sesame seeds and lose watermelon". Some people throw away watercress in order to eat the sprouts of bean sprouts. In fact, the vitamin C content of watercress is 2? Three times.
Some people squeeze out vegetable juice when making dumpling stuffing, and vitamins will also lose more than 70%. The correct way is to cut the vegetables and mix them with oil, then add salt and seasoning, so that there is not so much soup in the dumpling stuffing.
Some people don't eat immediately after cooking, but wait for a while, which will also lose a lot of nutrition.
Some people eat vegetables instead of soup. In fact, when cooking, many nutrients in vegetables are dissolved in soup, so it's a pity not to drink them.
It is not advisable to heat vitamin C and vitamin B 1 for a long time when cooking with strong fire, so avoid stewing with low fire and stir-frying with strong fire when cooking. Adding a little vinegar when cooking is also beneficial to the preservation of vitamins. Some vegetables are more suitable for cold dishes, such as cucumbers and tomatoes.
Don't cover the pesticide residues in vegetables when cooking or cooking soup. Pesticides will be decomposed by heating during cooking and disappear with the evaporation of water vapor. So, don't cover them when cooking or making soup.
Cooking should not add too much oil, whether it is animal oil or vegetable oil, too much intake will lead to obesity, or too much intake of calories will lead to hyperlipidemia, diabetes, cardiovascular diseases and so on. It is best for everyone to eat no more than 30 grams of oil every day.