Calories in 50g of Raw Bluefin Tuna

50g of raw bluefin tuna (50 g) has 72 calories. That is 4% of a 2,000 calorie diet.

The calories come from 12 g of protein, 2.5 g of fat and 0 g of carbohydrates, a split of 68% protein, 32% fat and 0% carbs. For comparison, 100g of raw bluefin tuna has 144 calories. Burning 72 calories takes about 13 minutes of brisk walking or 6 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.