USDA-derived comparison

Mackerel vs Mussels

Mackerel leads for Vitamin B3, Vitamin B6 and Magnesium; Mussels answers with Selenium, Iron and Folate.

Who each is for: Choose mackerel for vitamin B3 and vitamin B6. Choose mussels for selenium and iron.

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

Mackerel

Typical serving: 1 fillet (110g)

23/100

More vitamin B3More vitamin B6More magnesium
Full Mackerel page

Mussels

Typical serving: 1 serving (100g)

30/100

More seleniumMore ironMore folateMore vitamin C
Full Mussels 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.

NutrientMackerelMussels
Calories262 kcal172 kcal
Protein24 g24 g
Carbs0 g7 g
Fat18 g4 g
Fiber0 g0 g
Sat fat4 g1 g
Sodium83 mg369 mg
Potassium401 mg268 mg
Calcium15 mg33 mg
Iron1.6 mg6.7 mg
Magnesium97 mg37 mg
Zinc0.9 mg2.7 mg
Vitamin C0 mg14 mg
Vitamin D0 µg0 µg
Vitamin B1219 µg24 µg
Folate2 µg76 µg

Servings differ: 1 fillet of mackerel is about 110g, 1 serving of mussels about 100g. Scale accordingly before deciding anything on the 100g basis alone.

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