URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Energy drink, RED BULL, sugar free, with added caffeine, naicin, pantothenic acid, vitamins B6 and B12, 1 serving 8.3 fl oz can Protein (g) 0.62 Total lipid (fat) (g) 0.2 Carbohydrate, by difference (g) 1.75 Energy (kcal) 12.5 Calcium, Ca (mg) 32.5 Iron, Fe (mg) 0.05 Magnesium, Mg (mg) 7.5 Phosphorus, P (mg) 0 Potassium, K (mg) 7.5 Sodium, Na (mg) 210 Zinc, Zn (mg) 0 Copper, Cu (mg) 0.01 Manganese, Mn (mg) 0.01 Thiamin (mg) 0.06 Riboflavin (mg) 1.44 Niacin (mg) 21.25 Pantothenic acid (mg) 3.5 Vitamin B-6 (mg) 2.09 Vitamin B-12 (mcg) 4.38