Tuna Calories and Macros — Nutrition Facts per 100g (canned in water)

Tuna contains 116 calories per 100g (canned in water), with 26g of protein, 0g of carbs, and 0.8g of fat. Here's the full nutrient breakdown and how it fits into common tracking goals.

Tuna nutrition facts

Reference is canned skipjack tuna in water, drained. Fresh tuna (yellowfin, raw) is similar on protein but slightly higher in calories.

How does tuna fit your goals?

With 26g of protein per 100g (canned in water), tuna is a workhorse for anyone tracking macros for weight loss or muscle gain. Protein is the most satiating macro and the hardest to over-eat by accident, which is why high-protein foods anchor most successful cutting and recomposition plans. A single serving covers roughly 17% of a 150g daily protein target — the kind of number that adds up quickly when you build meals around it.

Diet-wise, tuna fits keto, low-carb, and high-protein eating patterns.

Tracking tuna in Bento Bunny

Logging foods like tuna manually means digging through a database, picking the right entry, and adjusting the serving size — multiple taps per meal. With Bento Bunny's AI photo tracking, you snap one picture and the macros land in your daily total automatically. For tuna specifically, the model recognises typical portion sizes well, so the numbers above will land within a few percent of what you'd get from manual weighing.

Related foods

• Salmon calories and macros
• Eggs calories and macros
• Cottage Cheese calories and macros