Which is healthier, Onion or Salmon?

Onion wins in 6 out of 10 nutritional categories. Onion has 40 calories and 1.1g protein per 100g, while Salmon has 208 calories and 20.4g protein.

How many calories are in Onion vs Salmon?

Onion contains 40 calories per 100g, while Salmon contains 208 calories per 100g.

Which has more protein, Onion or Salmon?

Salmon has more protein with 20.4g per 100g compared to 1.1g.

Onion vs Salmon

Nutrition Comparison per 100g

Onion 6

4 Salmon

Vegetables vs Fish

Side-by-Side Nutrition Facts

Nutrient	Onion	Salmon	Better
Calories	40kcal	208kcal	Onion
Protein	1.1g	20.4g	Salmon
Total Fat	0.1g	13.4g	Onion
Carbohydrates	9.3g	0g	Onion
Fiber	1.7g	0g	Onion
Sugar	4.2g	0g	Salmon
Vitamin C	7.4mg	0mg	Onion
Calcium	23mg	12mg	Onion
Iron	0.2mg	0.8mg	Salmon
Potassium	146mg	363mg	Salmon

Macronutrient Breakdown

Onion

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

Salmon

Protein: 20.4g Fat: 13.4g Carbs: 0g

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 Salmon — Key Takeaway

Onion has 168 fewer calories per 100g than Salmon, making it the lighter option. For protein, Salmon leads with 20.4g per 100g.

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