1 Fruits also contain a lot of cellulose and pectin, which can help clean the intestines. There is nothing in the juice.

2. The vitamins contained in the pulp may not all be squeezed into the juice.

3. After being squeezed into juice, the sugar is concentrated, which is not good for the body. Drinking fruit juice will quickly increase blood sugar concentration and stimulate insulin secretion in a short time. Therefore, people with diabetes should not drink juice. Normal people should also try to keep blood sugar balance.

The nutrition of fruit juice is much less than that of fruit. Fruit juice has no nutrition at all.

People drink fruit juice mostly because they think it is nutritious and delicious. Many people think that fruit juice can replace fruit, and drinking fruit juice can supplement nutrients (such as vitamin C) in fruit, especially for children who don't like fruit, or even completely replace drinking water.

Fruit juice can't replace fruit.

Drinking less fruit juice in moderation for the elderly and children can help digestion, moisten the intestines and supplement the lack of nutrients in the diet.

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, and the sweet-smelling fruit juice can increase their drinking water and ensure their body's need for water, which is indeed a good thing.

Fruit juice retains a considerable amount 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, sour materials, 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, there is basically no cellulose in fruit juice; Second, the process of mashing and pressing destroys some easily oxidizable vitamins in fruits; Thirdly, the lack of certain nutrients (such as cellulose) in fruits will have an adverse effect on the overall nutritional function; 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 make fruit juice clear, additives to prevent fruit juice from discoloring, etc. Fifth, the sterilization method of heating will also damage the nutritional components of fruits. Therefore, for those who can eat fresh fruit, the whole fruit is always the best choice in nutrition.

Drinking juice with meals is learned.

Because people seldom eat vegetables and fruits for breakfast, it should be a good habit to drink a cup of fresh juice or pure juice in the morning to supplement the water and nutrition needed by the body. It's a pity that 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, eat some staple food before drinking, so as to avoid stomach upset. Whether it is fresh juice, pure juice or juice drink, try to 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 to 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 to drink juice between meals.

Distinguish the types of juice

Usually we can buy the following kinds of juice in the market:

First, fresh fruit juice in fresh-keeping package. Generally, plastic bottles or house paper boxes are used for preservation, indicating that the preservation condition is low temperature refrigeration, and the preservation time is short, mostly only 7-10 days. This kind of fruit juice is generally fresh 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, which is rare in the market because of its short shelf life.

Second, pure juice. Generally, cartons, glass bottles and plastic bottles are used, and the storage time at room temperature is more than half a year. This kind of fruit juice is mostly concentrated fruit juice produced in the fruit producing area, which is restored 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.

Third, concentrated juice. Glass bottles or plastic bottles are often used, which can be stored at room temperature for a long time. This kind of fruit juice contains more sugar and additives, and the label will indicate the dilution ratio when drinking. Concentrated fruit juice is easy to carry, generally high in sweetness, and the taste can be adjusted by itself.

Fourth, juice drinks. There are many kinds of juice drinks with steam and juice drinks without steam, and the content of juice is also different.