1. Fruit juice contains much less nutrition than fruit.
When the fruit is squeezed into juice, the pulp and membrane are removed. In this process, vitamin C is also greatly reduced, and vitamin C is something you must take in large quantities.
If the fruit itself contains few vitamins, such as apples, then in this process, the vitamins are almost eliminated.
2. Fruits with more nutrition usually make juice with more nutrition.
Such as citrus fruits. However, sometimes, some nutrients, such as vitamin C, are artificially added to fruit juice. Please read the label carefully and find out the substance in it. Maybe some brands of apple juice or grape juice contain the vitamin C you need, but maybe other brands don't.
3. The size of the container will affect the vitamin content in the juice.
How is that possible? Note that vitamin C will decompose when exposed to oxygen, and the juice in small containers will be exposed to more air during and after packaging.
4. There is no need to brag about such a thing as "100% juice".
There is always something in the juice that is in the seasoning position. They are usually not nutritious. In fact, they don't taste very good.
You can't find much fruit in so-called "juice food" and "juice drink"
Most of them are water and high content of corn syrup. However, there are exceptions. Some cranberry juices are rich in vitamin C and nutritious.
6. Once opened, the juice begins to lose its nutrition, so don't store it in the refrigerator for too long.
The nutrition of aseptic juice made of citrus, grapefruit and pineapple can be preserved for 7- 10 days. Other low-acid juices, such as apples and grapes, can be kept for a week after opening. If you buy juice that has not been sterilized at high temperature, you must drink it within one week even if it is unopened.
7. Juice that has not been sterilized at high temperature may be unsafe.
The US Food and Drug Administration requires warning labels on these juices. These juices are not dangerous to healthy adults, but for children, the elderly and other people with low immunity, it is best not to drink these juices, and some harmful bacteria are not killed. Almost all the juices sold in the supermarket are sterilized at high temperature-of course, the freshly squeezed juice is not counted. In the farmer's market, small producers may not. So you should pay attention and ask more questions.
8. Wash the fruit before juicing.
If you squeeze juice at home, wash the fruit with cold running water first to remove the bacteria on the surface. Wash it with fruit emulsion and hot water before each squeeze.
9. Insist on buying unmixed fruits.
If you want the most nutritious juice, please insist on buying unmixed juice, such as citrus and glaze. Or try other citrus juices, which are usually rich in vitamins A, C, E or calcium.
10, don't be too obsessed with juice.
If you browse and choose widely, then juice may be helpful to your diet. However, eating some water is really simple, and it is definitely much better than eating fruit juice.
Second, how to choose juice
The first step is concentration: high concentration and good nutrition.
Juice drinks always indicate the concentration on the bottle label. There are roughly four kinds of fruit juice drinks in the market: 10%, 30%, 50%, 100%, and most of them are 10%. Take 380ml 10% fruit juice as an example, its original fruit juice content is only 10%, that is, only 38ml, and the rest are water and food additives, so its value as "fruit juice" can be imagined. In some countries with mature juice industry, drinks containing only 10% raw juice cannot even be called juice drinks, and the name "juice drinks" can only be used when the content reaches 30%. So some people joked that some people drink sweeteners and pigment water instead of fruit juice.
The second step is to look at the place of origin: good juice, planted.
As the saying goes, oranges are born in Huainan and oranges are born in Huaibei. Fruit juice made from fruits from good producing areas is naturally much better than ordinary fruit juice. Good taste will naturally not add too many food additives.
If the raw materials of fruit juice come from a good place of origin, the general manufacturers are willing to indicate on the bottle label, and consumers should pay more attention when choosing.
The third step is to look at precipitation: there is precipitation and good juice.
The precipitation of fruit juice shows that the manufacturer has retained the cellulose in the fruit during the production process, which is very beneficial to the human body. Therefore, juice with precipitation is generally more suitable for human consumption than juice without precipitation, and it needs to be "shaken before drinking".
Secondly, the pulp components in some fruit juice drinks will not precipitate, but will be uniformly suspended no matter how long they are placed, which is contrary to common sense and may be due to the addition of some unknown food additives. How safe it is remains to be verified.
The fourth step, look at the color: the more mellow, the more natural.
Some fruit juices in supermarkets are bright in color, breathable and beautiful; Others are opaque, round and even a little dim.
After fresh apples are cut, a layer of rust will appear on the surface immediately. The reason is that fruits are easy to oxidize, and the color will naturally change after a long time. So is fruit juice. When stored for a long time, the color will become mellow and textured, and the transparency and vividness will decrease. The juice that will not change color for a long time may be added with color fixative and preservative, so consumers are advised to be cautious when drinking it.
Those seemingly dull juices on the shelves are actually good juices.
The fifth step is to look at ingredients: good ingredients are healthy.
The ingredients will be marked on the label of the juice bottle. At this time, consumers should take a closer look at these ingredients. Common harmful or controversial ingredients in fruit juice drinks include preservatives, color fixatives, sodium XXX, etc.