How much protein is in 100g of tuna?
29g of protein, with 131 calories.
How Much Protein Is in Tuna?
Tuna has 29g of protein per 100g and 131 calories. Here is what that means per realistic portion, how it compares with similar foods, and how to use it to hit a daily protein target.
Protein in tuna
Tuna contains 29g of protein per 100g, alongside 131 calories. That works out to 22.1g of protein per 100 calories, which is a very high protein density.
A typical portion — 1 can, about 142g — gives roughly 41.2g of protein and 186 calories.
To reach 30g of protein from tuna alone you would need about 103g.
Tuna compared with similar foods
Same category, ranked by protein per 100g.
| Food | Protein | Calories |
|---|---|---|
| 🐟 Salt cod (bacalao, soaked & cooked) | 32g | 143 |
| 🥚 Salmon roe (ikura) | 32g | 278 |
| 🐙 Octopus (cooked) | 30g | 135 |
| 🐟 Tuna (canned in water) | 29g | 131 |
| 🐟 Anchovies (canned in oil) | 29g | 266 |
| 🐟 Halibut (cooked) | 27g | 123 |
| 🐟 Tilapia (cooked) | 26g | 119 |
| 🐟 Swordfish (cooked) | 26g | 119 |
Per 100g.
Using tuna to hit a protein target
- Protein per 100g: 29g. Calories per 100g: 131. Quality: complete protein.
- Extremely lean. Watch mercury if eating daily.
- A tuna portion can anchor a meal on its own — build the rest of the plate around it.
- Log it in the Protein Calendar and the daily total updates automatically.
Turn this into dinner
Hunter Chef builds a recipe around the protein target you pick, with macros calculated from the real ingredients.
Open Hunter ChefCommon questions
How much tuna do I need for 30g of protein?
About 103g of tuna provides 30g of protein.
Is tuna a good protein source?
Yes. At 29g per 100g it is a strong protein source, and it is a complete protein.
Keep reading
Protein CalculatorAdd this food to a full meal and get the total.What is Protein Hunter?
Protein Hunter is a protein and nutrition app with a database of 232 foods — from a leaf of kale to a wagyu steak — plus AI tools that answer protein questions, count a whole meal, build recipes to a macro target, and track what you actually eat.
- Search any food
- Count a full meal
- Recipes to your macros
- Scan a plate or label
Why it's different: the numbers are calculated from a fixed ingredient database rather than guessed, and when a target is not physically achievable the app says so instead of inventing a figure.
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