Shrimp vs fresh tuna: which is healthier?

They are about equally nutrient-dense: shrimp scores 67/100 and fresh tuna 66/100, so pick by your goal. Both can be part of a healthy diet; the table below shows where each one is stronger. Source: USDA FoodData Central.

Shrimp

67/100High nutrient density

99 kcal per 100 g. 3 oz cooked: 85 g

Fresh tuna

66/100High nutrient density

109 kcal per 100 g. 3 oz raw: 85 g

Which to pick for your goal

Fewer caloriesAbout even99 vs 109 kcal per 100 g
More proteinAbout even24 vs 24 g per 100 g
More fiberAbout even0 vs 0 g per 100 g
Less sugarAbout even0 vs 0 g per 100 g
More potassiumFresh tuna259 vs 441 mg per 100 g
Less saturated fatAbout even<0.1 vs 0.2 g per 100 g

Nutrition side by side

Per 100 g and per typical portion. Bold marks the better value for each row.
Nutrient	Shrimp, 100 g	Fresh tuna, 100 g	Shrimp, 85 g	Fresh tuna, 85 g
Calories	99 kcal	109 kcal	84 kcal	93 kcal
Protein	24 g	24 g	20 g	21 g
Carbohydrates	0.2 g	0 g	0.2 g	0 g
Sugars	0 g	0 g	0 g	0 g
Fiber	0 g	0 g	0 g	0 g
Fat	0.3 g	0.5 g	0.2 g	0.4 g
Saturated fat	<0.1 g	0.2 g	<0.1 g	0.1 g
Vitamin C	0 mg	0 mg	0 mg	0 mg
Vitamin A	0 µg	18 µg	0 µg	15 µg
Potassium	259 mg	441 mg	220 mg	375 mg
Iron	0.5 mg	0.8 mg	0.4 mg	0.7 mg
Calcium	70 mg	4 mg	60 mg	3.4 mg
Magnesium	39 mg	35 mg	33 mg	30 mg
Sodium	111 mg	45 mg	94 mg	38 mg

Last updated October 8, 2026. Scores use the HowHealthyIs Score method.

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