USDA-derived comparison

Cod vs Tuna Steak

Cod leads for Vitamin E; Tuna Steak answers with Selenium, Vitamin B3 and Vitamin B12.

Who each is for: Choose cod for vitamin E. Choose tuna Steak for selenium and vitamin B3.

Reviewed 20 July 2026. Generic food data per 100g; brands and preparation vary.

Cod

Typical serving: 1 fillet (140g)

16/100

More vitamin E
Full Cod page

Tuna Steak

Typical serving: 1 steak (130g)

29/100

More seleniumMore vitamin B3More vitamin B12More vitamin B6
Full Tuna Steak page

Side by side, per 100g

The stronger number is highlighted, honestly: higher wins for aim-for nutrients, lower wins for stay-under ones like saturated fat and sodium.

NutrientCodTuna Steak
Calories105 kcal130 kcal
Protein23 g29 g
Carbs0 g0 g
Fat1 g1 g
Fiber0 g0 g
Sat fat0 g0 g
Sodium78 mg54 mg
Potassium244 mg527 mg
Calcium14 mg4 mg
Iron0.5 mg0.9 mg
Magnesium42 mg42 mg
Zinc0.6 mg0.5 mg
Vitamin C1 mg0 mg
Vitamin D1.2 µg2 µg
Vitamin B121.1 µg2.4 µg
Folate8 µg2 µg

Servings differ: 1 fillet of cod is about 140g, 1 steak of tuna steak about 130g. Scale accordingly before deciding anything on the 100g basis alone.

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