United States Department of Agriculture
Agricultural Research Service
USDA Branded Food Products Database
Try FoodData Central Basic Report:  11601, Yam, raw
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heading Nutrient Unit
Value per 100 g
cup, cubes 150 g
Proximates Water g 69.60 104.40
Proximates Energy kcal 118 177
Proximates Protein g 1.53 2.29
Proximates Total lipid (fat) g 0.17 0.26
Proximates Carbohydrate, by difference g 27.88 41.82
Proximates Fiber, total dietary g 4.1 6.2
Proximates Sugars, total g 0.50 0.75
Minerals Calcium, Ca mg 17 26
Minerals Iron, Fe mg 0.54 0.81
Minerals Magnesium, Mg mg 21 32
Minerals Phosphorus, P mg 55 82
Minerals Potassium, K mg 816 1224
Minerals Sodium, Na mg 9 14
Minerals Zinc, Zn mg 0.24 0.36
Vitamins Vitamin C, total ascorbic acid mg 17.1 25.6
Vitamins Thiamin mg 0.112 0.168
Vitamins Riboflavin mg 0.032 0.048
Vitamins Niacin mg 0.552 0.828
Vitamins Vitamin B-6 mg 0.293 0.439
Vitamins Folate, DFE µg 23 34
Vitamins Vitamin B-12 µg 0.00 0.00
Vitamins Vitamin A, RAE µg 7 10
Vitamins Vitamin A, IU IU 138 207
Vitamins Vitamin E (alpha-tocopherol) mg 0.35 0.53
Vitamins Vitamin D (D2 + D3) µg 0.0 0.0
Vitamins Vitamin D IU 0 0
Vitamins Vitamin K (phylloquinone) µg 2.3 3.5
Lipids Fatty acids, total saturated g 0.037 0.056
Lipids Fatty acids, total monounsaturated g 0.006 0.009
Lipids Fatty acids, total polyunsaturated g 0.076 0.114
Lipids Fatty acids, total trans g 0.000 0.000
Lipids Cholesterol mg 0 0
Other Caffeine mg 0 0