Nutrition Facts for Tuna

Calories in Tuna (Per 100g)

The following values are standardized per 100 grams of tuna.

  • Calories

    132 kcal

  • Protein

    28 g

  • Carbohydrates

    0 g

  • Fat

    1 g

Nutrition by Serving Size

Calories and macros for common portion sizes of tuna.

PortionCaloriesProteinCarbsFat
50g66 kcal14 g0 g0.5 g
100g132 kcal28 g0 g1 g
150g198 kcal42 g0 g1.5 g
200g264 kcal56 g0 g2 g

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Is Tuna Good for Weight Loss?

Tuna can fit into a weight loss diet when portions are controlled. At 132 calories per 100g, it offers a moderate calorie density, so you can include it in a calorie deficit without blowing your budget. Tuna is high in protein (28g per 100g), which supports satiety and helps preserve muscle during a deficit. It is low in carbs, making it easy to pair with vegetables and other foods. For best results, combine tuna with plenty of vegetables and a sustainable calorie target from a calorie calculator or calorie deficit calculator.

How to Use Tuna in Your Diet

Practical ways to include tuna in meals:

  • Add a 100g portion to lunch or dinner and pair with vegetables and a carb source if needed.
  • Use in meal prep: cook in bulk and divide into portions for the week.
  • Log your portion in our Meal Log Calculator to see how it contributes to daily calories and macros.
  • Combine with other high-protein or high-fiber foods to improve satiety.

Related Tools

Log tuna and other foods in the Meal Log Calculator. Set daily targets with the calorie calculator and macro calculator.