Eating and drinking juice is learned.
Because people seldom eat vegetables and fruits for breakfast, it should be a good habit to drink a cup of freshly squeezed juice or pure juice in the morning to supplement the water and nutrition needed by the body. Unfortunately, people often drink a glass of milk and can't drink anything else.
It should be noted that don't drink juice with high acidity on an empty stomach, and eat some staple food before drinking to avoid gastrointestinal discomfort. Whether it is freshly squeezed juice, pure juice or juice drink, drink as little as possible at lunch and dinner.
The acidity of fruit juice will directly affect the acidity of gastrointestinal tract. A large amount of fruit juice will dilute the concentration of gastric digestive juice, and the fruit acid in fruit juice will also combine with some nutrients in the diet, which will affect the digestion and absorption of these nutrients, making people feel full when eating, unable to eat, indigestion after meals, and stomach discomfort. Besides breakfast, it is also suitable for drinking juice between meals.
Fruit juice can't replace fruit.
If adults can't ensure a reasonable diet, it is also a good way to supplement some nutrition by drinking fruit juice. Some people don't like drinking boiled water. Sweet fruit juice can increase their water consumption and ensure their body's need for water, which is really a good thing.
Old people and children drink less fruit juice in moderation, which is helpful for digestion, moistening intestines and supplementing the lack of nutrition in diet.
Fruit juice retains a lot of nutrients in fruit, such as vitamins, minerals, sugar and pectin in dietary fiber, and its taste is better than ordinary boiled water. Compared with water and carbonated drinks, fruit juice does have considerable advantages.
However, most fruit juices are "delicious" because they are flavored with sugar, sweeteners, sours, spices and other ingredients.
Need to remind everyone that there is a considerable gap between the nutrition of fruit juice and fruit, so don't confuse the two, fruit juice can't completely replace fruit.
First of all, the loss of some nutrients (such as cellulose) in fruits will adversely affect the overall nutritional function;
Second, the sterilization method of heating will also destroy the nutritional components of fruits. Therefore, for those who can eat fresh fruit, the whole fruit is always the best choice in nutrition;
Thirdly, there is basically no cellulose in the juice;
Fourthly, in the process of fruit juice production, some additives will inevitably affect the nutritional quality of fruit juice, such as sweeteners, preservatives, coagulants to clarify fruit juice, additives to prevent fruit juice from discoloring, etc.
Fifth, the process of mashing and pressing destroys some vitamins that are easily oxidized in fruits.
Distinguish the kinds of juice
Usually we can buy the following kinds of juices in the market:
1, juice drinks.
There are many kinds of juice drinks with steam and juice drinks without steam, and the content of juice is different.
2, freshly squeezed juice.
Generally, it is stored in plastic bottles or box-shaped paper, which means that the storage condition is cold storage, and the storage time is short, mostly only 7- 10 days. This kind of juice is generally freshly squeezed juice, which has not been sterilized at high temperature, and basically does not add sugar, sweeteners and preservatives, and its nutrients are well preserved. This kind of fruit juice must be stored at low temperature and drunk in a short time, and its shelf life is short, so it is rare in the market.
3. Concentrated juice.
Glass bottles or plastic bottles are often used and can be stored at room temperature for a long time. This fruit juice contains a lot of sugar and additives, and the dilution ratio will be indicated on the label when drinking. Concentrated fruit juice is easy to carry, generally has high sweetness, and its taste can be adjusted by itself.
4. Pure juice.
Cartons, glass bottles and plastic bottles are generally used, and the storage time at room temperature is more than half a year. This kind of juice is mostly concentrated juice produced in the fruit producing area, which is reduced to the original juice concentration by adding water and then sterilized at an instant high temperature. Nutrients, especially vitamins, have been lost, and the flavor of fruits has changed slightly. The concentration of this juice should be the same as that of freshly squeezed juice, or at least similar.
How to drink freshly squeezed juice is healthier?
Freshly squeezed fruit and vegetable juice is really nutritious. After it enters the human digestive system, it will make the blood alkaline and expel toxins accumulated in cells, such as heavy metals such as lead, aluminum and mercury and free radicals, so it has the function of detoxification and purification.
In addition, it also has the functions of promoting digestion, stimulating appetite, whitening skin, bodybuilding and losing weight. For patients, the elderly and infants, gastrointestinal function is weak, gastrointestinal peristalsis is slow, there are fewer lactic acid bacteria in the intestine, and food remains in the gastrointestinal tract, which is difficult to digest. It is very suitable for supplementing the deficiency of nutrients in the diet by drinking fruit juice. If adults can't ensure a reasonable diet, drinking some juice can supplement some nutrition appropriately; For those who don't like drinking boiled water, sweet fruit juice can increase their water consumption, especially in summer to ensure their body's need for water.
In fact, drinking freshly squeezed juice, the human body gets nutrients such as sugar, fat and trace elements similar to eating fresh fruit. But the biggest deficiency is that fruits lose a lot of dietary fiber necessary for human body during fresh pressing. Water-soluble fiber represented by pectin has the health care function of preventing and reducing diabetes and cardiovascular diseases, while insoluble fiber is more used to prevent gastrointestinal system diseases, which can stimulate intestinal peristalsis and promote defecation. In addition, dietary fiber can also affect the blood sugar level, reduce the dependence of diabetic patients on drugs, prevent excess calories, control obesity, prevent gallstones and reduce blood lipids. The best way to solve the problem of less dietary fiber in fruit juice is to eat the solid residue left after juicing, so that the nutrients will not be lost.
In addition, don't heat the fruit after juicing, which will cause different degrees of damage to vitamins. It is not advisable to drink high-concentration juice on an empty stomach to avoid hurting the stomach. Don't drink too much for lunch and dinner, because a lot of fruit juice will dilute the concentration of gastric juice, and the fruit acid in fruit juice will also combine with some nutrients in the diet, which will affect the digestion and absorption of these nutrients.