In addition to containing organic compounds such as kiwiline, proteolytic enzymes, tannins, pectins and sugars, as well as trace elements such as calcium, potassium, selenium, zinc, germanium and 17 kinds of amino acids required by the human body, kiwi fruit also contains Rich in vitamin C, glucic acid, fructose, citric acid, malic acid, and fat. The average vitamin C content of red kiwi fruit per 500g is as high as 95.7 mg, making it known as the king of fruits.
Per 100 grams of edible part of citrus contains 16 mg of vitamin C.
Watermelon can be called the "King of Midsummer". It is refreshing and thirst-quenching, and tastes sweet and juicy. Vitamin C and other substances rich in vitamin C.
Some other fruits and vegetables contain large amounts of vitamin C, such as cherries, citrus fruits, guava, green or red peppers, mustard greens, spinach, strawberries, grapes and tomatoes. However, vitamin C is extremely unstable and is easily destroyed during storage, processing and cooking. In addition, vitamin C is easily oxidized and decomposed.