USDA-derived comparison
Haddock vs Tuna Steak
Tuna Steak leads for Selenium, Vitamin B3 and Vitamin B6 per 100g, while Haddock holds its own elsewhere.
Who each is for: Choose tuna Steak for selenium and vitamin B3.
Reviewed 20 July 2026. Generic food data per 100g; brands and preparation vary.
Haddock
Typical serving: 1 fillet (140g)
17/100
No clear per-100g leads, which is a result in itself.
Full Haddock pageTuna Steak
Typical serving: 1 steak (130g)
29/100
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.
| Nutrient | Haddock | Tuna Steak |
|---|---|---|
| Calories | 90 kcal | 130 kcal |
| Protein | 20 g | 29 g |
| Carbs | 0 g | 0 g |
| Fat | 1 g | 1 g |
| Fiber | 0 g | 0 g |
| Sat fat | 0 g | 0 g |
| Sodium | 261 mg | 54 mg |
| Potassium | 351 mg | 527 mg |
| Calcium | 14 mg | 4 mg |
| Iron | 0.2 mg | 0.9 mg |
| Magnesium | 26 mg | 42 mg |
| Zinc | 0.4 mg | 0.5 mg |
| Vitamin C | 0 mg | 0 mg |
| Vitamin D | 0.6 µg | 2 µg |
| Vitamin B12 | 2.1 µg | 2.4 µg |
| Folate | 13 µg | 2 µg |
Servings differ: 1 fillet of haddock is about 140g, 1 steak of tuna steak about 130g. Scale accordingly before deciding anything on the 100g basis alone.
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