URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Butterbur, (fuki), raw, 1 cup Protein (g) 0.37 Total lipid (fat) (g) 0.04 Carbohydrate, by difference (g) 3.39 Energy (kcal) 13.16 Calcium, Ca (mg) 96.82 Iron, Fe (mg) 0.09 Magnesium, Mg (mg) 13.16 Phosphorus, P (mg) 11.28 Potassium, K (mg) 615.7 Sodium, Na (mg) 6.58 Zinc, Zn (mg) 0.15 Copper, Cu (mg) 0.1 Manganese, Mn (mg) 0.26 Selenium, Se (mcg) 0.85 Vitamin A, IU (IU) 47 Retinol (mcg) 0 Vitamin C, total ascorbic acid (mg) 29.61 Thiamin (mg) 0.02 Riboflavin (mg) 0.02 Niacin (mg) 0.19 Pantothenic acid (mg) 0.03 Vitamin B-6 (mg) 0.09 Folate, total (mcg) 9.4 Vitamin B-12 (mcg) 0 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 9.4 Cholesterol (mg) 0