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

How healthy is fresh tuna?

Is fresh tuna healthy? Yes, for most people. Fresh tuna scores 66/100 on the HowHealthyIs Score: 100 g provides 109 kcal, 24 g protein and 441 mg potassium. Fresh yellowfin tuna is very lean and high in protein, niacin, B12 and selenium. Source: USDA FoodData Central.

  • High in protein
  • Source of potassium
  • Low fat
Score explained

The score compares nutrient density per 100 kcal across every food we cover (NRF9.3 method). Fresh tuna ranks higher than 66% of them.

Counts in favor (% daily value per 100 kcal)

  • Protein45%
  • Potassium9%
  • Magnesium8%
  • Iron4%
  • Vitamin A2%
  • Vitamin E1%
  • Calcium0%
  • Fiber0%
  • Vitamin C0%

Counts against

  • Saturated fat1%
  • Added sugars0%
  • Sodium2%

Raw NRF9.3: 69 minus 3 = 66. The score is not a verdict on whether to eat a food; portion, the whole meal and your own health matter more. Full methodology

How many calories are in fresh tuna?

Calories93kcal
Protein21g
Carbohydrates0g
Fat0.4g
Fiber0g
Sugars0g
Nutrition facts for fresh tuna. Per 100 g and for the selected portion (85 g). %DV uses FDA Daily Values.
NutrientPer 100 gPer portion%DV
Energy and macronutrients
Calories109 kcal93 kcal
Protein24 g21 g41%
Carbohydrates0 g0 g0%
Fiber0 g0 g0%
Sugars0 g0 g
Added sugars0 g0 g0%
Fat0.5 g0.4 g1%
Saturated fat0.2 g0.1 g1%
Vitamins
Vitamin A18 µg15 µg2%
Vitamin C0 mg0 mg0%
Vitamin E0.2 mg0.2 mg1%
Minerals
Calcium4 mg3.4 mg0%
Iron0.8 mg0.7 mg4%
Potassium441 mg375 mg8%
Magnesium35 mg30 mg7%
Sodium45 mg38 mg2%

Source: USDA FoodData Central, "Fish, tuna, fresh, yellowfin, raw" (FDC 175159). Values rounded.

Why is fresh tuna good for you?

  • 21 g protein in 3 oz raw, 41% of the daily value. Protein contributes to the maintenance of muscle mass.

Good ways to use it

  • Seared steaks
  • Poke bowls and sushi

What should you watch out for?

  • Large tuna contains more mercury than small fish; pregnant people should follow local fish advice.

Which meat and fish score higher?

Other meat and fish with more nutrition per calorie. Variety matters more than picking one winner.

How does fresh tuna compare?

Common questions about fresh tuna

How many calories are in fresh tuna?
100 g of fresh tuna has 109 kcal. A typical portion, 3 oz raw (85 g), has about 93 kcal.
How much protein is in fresh tuna?
Fresh tuna has 24 g of protein per 100 g, or about 21 g in 3 oz raw.
Is fresh tuna good for weight loss?
Fresh tuna is fairly calorie-dense (109 kcal per 100 g), so portion size matters more than the food itself. 3 oz raw is about 93 kcal.

Sources

  1. U.S. Department of Agriculture. FoodData Central, SR Legacy: "Fish, tuna, fresh, yellowfin, raw", FDC ID 175159. fdc.nal.usda.gov
  2. U.S. Food and Drug Administration. Daily Value on the Nutrition and Supplement Facts Labels (21 CFR 101.9).
  3. Fulgoni VL, Keast DR, Drewnowski A. Development and validation of the Nutrient-Rich Foods Index. J Nutr. 2009;139(8):1549-1554.
  4. Monteiro CA, et al. Ultra-processed foods: what they are and how to identify them. Public Health Nutr. 2019;22(5):936-941.

Review and updates

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More: Meat & fish ranked, foods high in protein.