Diabetics can eat oranges in moderation. Oranges, tangerines and grapefruit have similar nutritional composition. All contain more minerals as well as insulin analogues, and rich in vitamin C and sugar. The magnesium ions in the minerals are helpful in maintaining the beta cell function of the pancreas, and the chromium ions have a certain role in stabilizing blood sugar. Although vitamin C has no role in changing blood sugar, it can increase the body’s resistance to reduce the health risks of high blood sugar. The sugar in oranges is composed of fructose and glucose, of which the proportion of fructose is relatively higher, and fructose does not raise blood sugar. Just need to pay attention to too much consumption of oranges will lead to an increase in blood sugar, need to limit the intake of oranges. Diabetic patients should not consume more than 2 oranges per day, if the oranges are relatively large, it is appropriate to calculate by weight not more than 3 taels per day.