United States Department of Agriculture
Agricultural Research Service

National Nutrient Database for Standard Reference Legacy Release
Try FoodData Central Basic Report:  02065, Spearmint, fresh a 
heading Nutrient Unit
Value per 100 g

leaves 0.3 g

tbsp 91.2 g
Proximates Water g 85.55 0.26 78.02
Proximates Energy kcal 44 0 40
Proximates Protein g 3.29 0.01 3.00
Proximates Total lipid (fat) g 0.73 0.00 0.67
Proximates Carbohydrate, by difference g 8.41 0.03 7.67
Proximates Fiber, total dietary g 6.8 0.0 6.2
Minerals Calcium, Ca mg 199 1 181
Minerals Iron, Fe mg 11.87 0.04 10.83
Minerals Magnesium, Mg mg 63 0 57
Minerals Phosphorus, P mg 60 0 55
Minerals Potassium, K mg 458 1 418
Minerals Sodium, Na mg 30 0 27
Minerals Zinc, Zn mg 1.09 0.00 0.99
Vitamins Vitamin C, total ascorbic acid mg 13.3 0.0 12.1
Vitamins Thiamin mg 0.078 0.000 0.071
Vitamins Riboflavin mg 0.175 0.001 0.160
Vitamins Niacin mg 0.948 0.003 0.865
Vitamins Vitamin B-6 mg 0.158 0.000 0.144
Vitamins Folate, DFE µg 105 0 96
Vitamins Vitamin B-12 µg 0.00 0.00 0.00
Vitamins Vitamin A, RAE µg 203 1 185
Vitamins Vitamin A, IU IU 4054 12 3697
Vitamins Vitamin D (D2 + D3) µg 0.0 0.0 0.0
Vitamins Vitamin D IU 0 0 0
Lipids Fatty acids, total saturated g 0.191 0.001 0.174
Lipids Fatty acids, total monounsaturated g 0.025 0.000 0.023
Lipids Fatty acids, total polyunsaturated g 0.394 0.001 0.359
Lipids Fatty acids, total trans g 0.000 0.000 0.000
Lipids Cholesterol mg 0 0 0

Footnotes
a  Leaf