Halibut

Halibut should be avoided due to high mercury content

Why It Matters for Longevity

Halibut should be avoided due to high mercury content Moderate-to-high methylmercury accumulation in a large flatfish species. Source of folate (12 mcg per 3 oz cooked, 3% DV), omega-3 (0.35–0.88 g EPA/DHA per 75 g cooked), and magnesium (24 mg per 3 oz cooked, 6% DV) White fish providing omega-3, folate, and magnesium. Halibut has moderate mercury levels (mean 0.241 ppm); FDA/EPA categorize it as a species to eat less frequently, consistent with book's avoidance recommendation (PubMed) White fish including halibut provides moderate EPA/DHA and magnesium; nutritional benefits partially offset by mercury risk at high consumption frequencies (PubMed)

How to Use It

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

What to Pair It With

Synergies

• Sardines (antagonism): Book recommends sardines over halibut as lower-mercury oily fish alternative with higher omega-3 density - Olive Oil (complement): Enhances fat-soluble vitamin absorption and adds monounsaturated fats - Lemon (complement): Classic pairing; acid balances mild flavor and may improve mineral absorption

Flavor Profile

Taste: mild, sweet, clean. Aroma: neutral, oceanic. Texture: firm, meaty, flaky. Category: white fish.

The Science

• PubMed: Halibut has moderate mercury levels (mean 0.241 ppm); FDA/EPA categorize it as a species to eat less frequently, consistent with book's avoidance recommendation - PubMed: White fish including halibut provides moderate EPA/DHA and magnesium; nutritional benefits partially offset by mercury risk at high consumption frequencies - Book claim (high confidence): Halibut should be avoided due to high mercury content - Book claim (medium confidence): Source of folate (12 mcg per 3 oz cooked, 3% DV), omega-3 (0.35–0.88 g EPA/DHA per 75 g cooked), and magnesium (24 mg pe

Key Nutrients