Oranges contain vitamin C. Oranges are the fruit of the orange tree of the genus Citrus in the family Rutaceae, and are a hybrid between grapefruit and tangerine, also known as mandarins and willows. Oranges are rich in vitamin C, carotenoids, citric acid, etc. Every 100 grams of oranges contain about 40 milligrams of vitamin C, which is a good source of vitamin C, as are many other fruits. Vitamin C, also known as vitamin C or ascorbic acid, is an essential nutrient for the human body. Moderate intake of oranges can be a good source of both vitamin C and can can help with hydration, among other things. However, due to the high sugar content of oranges, diabetic patients need to control the amount, the general public should also eat a balanced diet, should not be consumed in excess.