Nutritional properties of the Apple
Nutritionists report that for every 100 grams of edible product, the average content is about 85 grams of water, 0.2 grams of protein, 0.1 grams of fat, 11 grams of various sugars, including fructose, glucose, and sucrose, 2 grams of fiber, for a total of about 45-50 calories, and about 4 grams of mineral salts including potassium, sulfur, phosphorus, calcium, magnesium, sodium, iron, as well as traces of copper, iodine, manganese zinc, and silicon.
The apple is also rich in vitamins: C, PP, B1; B2, A, and also contains malic acid (about 0.6-1.3 grams). Both in the pulp and in the skin there are also ethers, tannins, alcohols, aldehydes and a high number of terpenes that make the scent and taste of apples infinitely varied. The values indicated may vary according to the degree of ripeness of the fruit and quality, also because there are more than a thousand varieties of apples in the world today”.