Mackerel

King mackerel should be avoided due to high mercury content

Why It Matters for Longevity

King mackerel should be avoided due to high mercury content High methylmercury levels in large mackerel species due to bioaccumulation up the food chain. Top vitamin B12 fish source (14 mcg per 75 g cooked, 233% DV); excellent omega-3 source (0.90–1.39 g EPA/DHA per 75 g cooked; salted mackerel: 3.43 g EPA/DHA) Exceptionally rich in both vitamin B12 and omega-3 EPA/DHA. Atlantic mackerel (Scomber scombrus) has low mercury levels and high omega-3 content; safe and beneficial unlike king mackerel (PubMed) Oily fish omega-3s including mackerel EPA/DHA reduce triglycerides and cardiovascular mortality; B12 supports homocysteine reduction (PubMed)

How to Use It

Pairs well with lemon, capers, mustard. Use as a fish in your daily meals according to the Longevity Diet guidelines.

What to Pair It With

Synergies

• Sardines (complement): Both oily fish with high omega-3 and B12; Atlantic mackerel is a safer mackerel alternative to king mackerel - Lemon (complement): Acid brightens flavor and may aid digestion of rich oily fish - Vitamin-D (synergy): Mackerel is one of few dietary sources of vitamin D that can meaningfully contribute to daily intake

Flavor Profile

Taste: rich, oily, savory, strong. Aroma: distinctly fishy, briny. Texture: firm, flaky, oily. Category: oily fish.

The Science

• PubMed: Atlantic mackerel (Scomber scombrus) has low mercury levels and high omega-3 content; safe and beneficial unlike king mackerel - PubMed: Oily fish omega-3s including mackerel EPA/DHA reduce triglycerides and cardiovascular mortality; B12 supports homocysteine reduction - Book claim (high confidence): King mackerel should be avoided due to high mercury content - Book claim (high confidence): Top vitamin B12 fish source (14 mcg per 75 g cooked, 233% DV); excellent omega-3 source (0.90–1.39 g EPA/DHA per 75 g co

Key Nutrients