Fruit is made up of a high percentage of water, useful, always and especially in summer, to rehydrate the body. It also... moreFruit is made up of a high percentage of water, useful, always and especially in summer, to rehydrate the body. It also contains many mineral salts such as magnesium and potassium and a fair amount of carbohydrates in simple sugars (glucose and fructose) that give energy without weighing down the body. But fruit is a precious mine of vitamins, particularly C and beta-carotene (a precursor of Vitamin A).