A 1-cup serving of blanched stinging nettles contains 37 calories and 0.1 grams of fat. With no fat, sodium, cholesterol, protein or sugar per serving and virtually no fiber, nettle leaves are nonetheless rich in nutrients.
Stinging nettle provides few carbohydrates and a small amount of protein, as well. One cup contains 6.6 grams of carbohydrates and 2.4 grams of protein.