URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Longans, raw, 1 fruit without refuse Protein (g) 0.04 Total lipid (fat) (g) 0 Carbohydrate, by difference (g) 0.48 Energy (kcal) 1.92 Fiber, total dietary (g) 0.04 Calcium, Ca (mg) 0.03 Iron, Fe (mg) 0 Magnesium, Mg (mg) 0.32 Phosphorus, P (mg) 0.67 Potassium, K (mg) 8.51 Sodium, Na (mg) 0 Zinc, Zn (mg) 0 Copper, Cu (mg) 0.01 Manganese, Mn (mg) 0 Vitamin C, total ascorbic acid (mg) 2.69 Thiamin (mg) 0 Riboflavin (mg) 0 Niacin (mg) 0.01 Vitamin B-12 (mcg) 0 Cholesterol (mg) 0