Early version. Nutrient values from USDA FoodData Central; dietitian review in progress. Not medical advice.

Mussels vs fresh tuna: which is healthier?

They are about equally nutrient-dense: mussels scores 64/100 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.

Mussels

64/100High nutrient density

172 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 caloriesFresh tuna172 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 tuna268 vs 441 mg per 100 g
  • Less saturated fatFresh tuna0.8 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.
NutrientMussels, 100 gFresh tuna, 100 gMussels, 85 gFresh tuna, 85 g
Calories172 kcal109 kcal146 kcal93 kcal
Protein24 g24 g20 g21 g
Carbohydrates7.4 g0 g6.3 g0 g
Sugars0 g0 g0 g0 g
Fiber0 g0 g0 g0 g
Fat4.5 g0.5 g3.8 g0.4 g
Saturated fat0.8 g0.2 g0.7 g0.1 g
Vitamin C14 mg0 mg12 mg0 mg
Vitamin A91 µg18 µg77 µg15 µg
Potassium268 mg441 mg228 mg375 mg
Iron6.7 mg0.8 mg5.7 mg0.7 mg
Calcium33 mg4 mg28 mg3.4 mg
Magnesium37 mg35 mg31 mg30 mg
Sodium369 mg45 mg314 mg38 mg

Last updated . Scores use the HowHealthyIs Score method.

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