Methylmercury

The form of mercury that builds up in predatory fish such as tuna, shark and swordfish. A contaminant, never a listed ingredient.

Type
Contaminant (heavy metal)
How serious
High severity
Evidence
Strong evidence

Why it is flagged

Crosses the placenta and harms the developing brain, so Health Canada caps predatory fish for pregnant women and children and limits mercury in retail fish to 0.5 mg/kg.

Health topics it bears on

Sources

Also listed as

methyl mercury, mercury, méthylmercure, mercure, metilmercurio, mercurio, quecksilber, methylquecksilber

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