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Tuna (Canned in Water) — Canned in water, drainedS
Seafood · #2 of 28

Tuna (Canned in Water)

Canned in water, drained · Fish & Seafood

69/100S tier
Calories108
Protein23.6g
Fiber0g
Sodium247mg
Sugar—g

Graded S — 69 out of 100, #2 of 28 seafood. Protein carries the score (87/100); omega-3 drags it down (19/100).

The short version: A protein-per-calorie monster. The mercury is the asterisk.

The catch: Limit albacore to about one serving a week; chunk light is lower in mercury.

Nutrition facts

Nutrition Facts

per 100g
Calories108
% Daily Value*
Total Fat 1g1%
Saturated Fat 0.3g2%
Cholesterol 50mg17%
Sodium 247mg11%
Dietary Fiber 0g
Protein 23.6g47%
Selenium 80.4mcg146%
Vitamin B12 2.5mcg104%
Niacin 11mg69%
* % Daily Values use FDA label references (2,000-calorie diet). Micronutrient %DV uses the same reference values as our scoring. Values: USDA SR Legacy or the manufacturer/chain’s published label.

Why it scored 69

Protein ×2587
Protein quality (DIAAS) ×1587
Clean label ×1585
Micronutrients ×2569
Omega-3 ×2019

Each factor is scored 0–100, then combined with the weights shown. Read the full methodology.

Where it ranks

#2 of 28 in Seafood. Why per-100-calorie scoring changes everything →

More fish & seafood

Head to head

Questions people ask

Is Tuna (Canned in Water) healthy?

It grades S — 69 out of 100, #2 of 28 seafood in our system. A protein-per-calorie monster. The mercury is the asterisk.

How many calories are in Tuna (Canned in Water)?

108 calories per 100g. For context, that is scored per 100 calories here, which is why energy-dense foods can grade lower than you’d expect.

How is the nutrition score for Tuna (Canned in Water) calculated?

Each factor (protein, fiber, micronutrients, and others depending on the category) is scored 0–100 against a fixed benchmark, then combined with published weights. See the score breakdown above or read the full methodology.

A note before you eat your screen: grades are computed from published nutrition data with a transparent formula. They are a starting point for thinking about food, not medical advice. Talk to your doctor or a registered dietitian about your diet.