Which is healthier, Onion or Oyster?

Neither is clearly better — they have different strengths. Onion has 40 calories and 1.1g protein per 100g, while Oyster has 81 calories and 9.5g protein.

How many calories are in Onion vs Oyster?

Onion contains 40 calories per 100g, while Oyster contains 81 calories per 100g.

Which has more protein, Onion or Oyster?

Oyster has more protein with 9.5g per 100g compared to 1.1g.

Onion vs Oyster

Nutrition Comparison per 100g

Onion 5

5 Oyster

Vegetables vs Seafood

Side-by-Side Nutrition Facts

Nutrient	Onion	Oyster	Better
Calories	40kcal	81kcal	Onion
Protein	1.1g	9.5g	Oyster
Total Fat	0.1g	2.5g	Onion
Carbohydrates	9.3g	4.9g	Onion
Fiber	1.7g	0g	Onion
Sugar	4.2g	0g	Oyster
Vitamin C	7.4mg	3mg	Onion
Calcium	23mg	53mg	Oyster
Iron	0.2mg	6.7mg	Oyster
Potassium	146mg	168mg	Oyster

Macronutrient Breakdown

Onion

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

Oyster

Protein: 9.5g Fat: 2.5g Carbs: 4.9g

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 Oyster — Key Takeaway

For protein, Oyster leads with 9.5g per 100g.

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