Terminology
In the United Kingdom the name or names of the fruit followed by juice can only legally be used to describe a product which is 100% fruit juice, as required by the Fruit Juices and Fruit Nectars (England) Regulations and the Fruit Juices & Fruit Nectars (Scotland) Regulations 2003. However, a juice made by reconstituting concentrate can be called juice. A product described as fruit "nectar" must contain at least 25% to 50% juice, depending on the fruit. A juice or nectar including concentrate must state that it does. The term "juice drink" is not defined in the Regulations and can be used to describe any drink which includes juice, however little. Comparable rules apply in all EU member states in their respective languages.
In the USA fruit juice can only legally be used to describe a product which is 100% fruit juice. A blend of fruit juice(s) with other ingredients, such as high-fructose corn syrup, is called a juice cocktail or juice drink. According to the Food and Drug Administration (FDA), the term "nectar" is generally accepted in the U.S. and in international trade for a diluted juice to denote a beverage that contains fruit juice or puree, water, and which may contain artificial sweeteners.
"No added sugar" is commonly printed on labels of juice containers, but the products may contain large amounts of naturally occurring sugars; however, sugar content is listed with other carbohydrates on labels in many countries.
Some carbonated beverages, not described as fruit juice, contain fruit juice (such as Mountain Dew or Orangina, which contain orange juice).
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