Fruit juices – such as orange or grapefruit juice – are valued above all as suppliers of vitamin C. This vitamin, which is essential for numerous bodily functions, strengthens the immune system and thus helps prevent colds. Vitamin C also provides indispensable support for conjunctive tissue. Pantothenic acid stimulates the regeneration of skin and hair and promotes the healing of wounds. The antioxidant effect of fruit juice – especially juice made from red berries – can play an important role in the prevention and control of cardiovascular disorders.
Fruit and fruit juice contain a number of different carbohydrates, including sugars, such as fructose, glucose and sucrose, which give fruit its sweet taste and serve the body – at varying speeds – as essential sources of energy.
Fruit juice contains minerals such as potassium, which regulates the distribution of liquids in the organism, among other things.
Although iron, another essential mineral, is present only in low concentrations in fruit juice, drinking fruit juice with meals helps improve the body’s ability to supply itself with iron. The vitamin C and fruit acids boost the body’s own capacity to absorb iron and thus enhance concentration and vitality.
Fruit juice is an excellent source of secondary plant substances, including especially polyphenols and carotinoids. These substances support the immune system in several different ways. Experts have determined, for example, that these substance groups can help eliminate certain harmful substances known as free radicals. Grape juice and such rich “superfruits” as cranberries or also have very strong antioxidant effects.