Juice that is labeled as 100 percent juice is only made from fruit juice and has not been diluted with water. This type of juice can, however, be mixed with water if it is a juice concentrate.
A 100 percent juice can be made through the process of squeezing or pressing. Concentrated juices are not as healthy and are made from a variety of fructose. Many brands of 100 percent juice do not add sugar, but still have a natural sugar content. Fruit juice can be high in calories and should be consumed in moderation. Vegetable juice is lower in calories and in most cases is a healthier option.
Raw juice has not been processed and maintains more vitamins and nutrients than other types of juices. Raw juice, however, does not have a long shelf life and should be consumed shortly after it has been juiced.
Flash pasteurized juice has gone through a series of heating and cooling. This process is done to kill any harmful bacteria that may be present in the juice. The pasteurization process also extends the shelf life of juice.
The vegetable and fruit juice with the highest vitamin and nutrient content is that which is squeezed fresh. Freshly squeezed juice can be made at home or purchased at specialty markets.