Data last updated: April 2026

Onion vs Prawn

Nutrition Comparison per 100g

Onion 5
vs
5 Prawn

Vegetables vs Seafood

Side-by-Side Nutrition Facts

Nutrient Onion Prawn Better
Calories 40kcal 106kcal Onion
Protein 1.1g 20.3g Prawn
Total Fat 0.1g 1.7g Onion
Carbohydrates 9.3g 0.9g Onion
Fiber 1.7g 0g Onion
Sugar 4.2g 0g Prawn
Vitamin C 7.4mg 2mg Onion
Calcium 23mg 52mg Prawn
Iron 0.2mg 2.4mg Prawn
Potassium 146mg 185mg Prawn

Macronutrient Breakdown

Onion

Protein: 1.1g Fat: 0.1g Carbs: 9.3g

Prawn

Protein: 20.3g Fat: 1.7g Carbs: 0.9g

Data Source

Nutrition data sourced from the USDA FoodData Central SR Legacy database. All values are per 100g of the food item. Actual nutritional content may vary by preparation method, brand, and serving size.

Onion vs Prawn — Key Takeaway

Onion has 66 fewer calories per 100g than Prawn, making it the lighter option. For protein, Prawn leads with 20.3g per 100g.

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