Amounts are per 100 grams, from USDA FoodData Central. Basic and whole foods are lab-measured (SR Legacy and Foundation Foods); branded packaged products carry the manufacturer's own label values. FoodFactsUSA reports what a food contains; it is not dietary advice.

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Per 100 gOnions, welsh, rawFiddlehead ferns, frozen, unprepared

Calories3434

Protein1.9 g4.3 g

Total fat0.4 g0.3 g

Saturated fat0.1 g—

Carbohydrate6.5 g5.7 g

Fiber2.4 g—

Sugars2.2 g—

Sodium17 mg0 mg

Potassium212 mg129 mg

Calcium18 mg24 mg

Iron1 mg1 mg

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Source: USDA FoodData Central. Comparison is per 100 g of each food.