Is Canned tuna good for you?
Canned tuna is a protein. It has about 0 g net carbs and 26 g protein per 100 g. Here's how Susta judges it — and why the answer changes with your goal.
Canned tuna: verdict by goal
Family & general wellness
BuyBlood sugar / pre-diabetes
BuyLongevity
BuyWeight loss (with diabetes)
BuyThe details
How to choose: In olive oil or water; skipjack lower in mercury than albacore.
How to use it: Salad, lettuce wraps, or mixed with avocado-oil mayo.
How to store: Pantry; fridge after opening.
Sensible portion: 1 tin (~120 g), 1–2×/week
See how Canned tuna fits your goal
Susta judges every food for your specific health goal — free, on-device, with the cited evidence behind it.
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Susta gives general wellness information graded by evidence — not medical advice, diagnosis, or treatment, and never medication advice. Verdicts are tuned to a chosen goal and may differ for you. Talk to your clinician about your health.