Data last updated: April 2026

Clam vs Onion

Nutrition Comparison per 100g

Clam 6
vs
4 Onion

Seafood vs Vegetables

Side-by-Side Nutrition Facts

Nutrient Clam Onion Better
Calories 148kcal 40kcal Onion
Protein 25.6g 1.1g Clam
Total Fat 2g 0.1g Onion
Carbohydrates 5.1g 9.3g Onion
Fiber 0g 1.7g Onion
Sugar 0g 4.2g Clam
Vitamin C 22.1mg 7.4mg Clam
Calcium 92mg 23mg Clam
Iron 28mg 0.2mg Clam
Potassium 628mg 146mg Clam

Macronutrient Breakdown

Clam

Protein: 25.6g Fat: 2g Carbs: 5.1g

Onion

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

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.

Clam vs Onion — Key Takeaway

Onion has 108 fewer calories per 100g than Clam, making it the lighter option. For protein, Clam leads with 25.6g per 100g. Clam provides 22.1mg of vitamin C.

Track Your Nutrition

Make informed food choices with detailed nutrition data for every meal.

Compare More Foods