How often can kids eat salmon without too much mercury?
Yes, some fish should be limited. High-mercury fish like swordfish and shark should be avoided during pregnancy.
What's actually in it
Mercury occurs naturally in the ocean and builds up in fish tissue through a process called biomagnification. Larger predator fish that eat smaller fish accumulate the most. Methylmercury, the form found in fish, is a potent neurotoxin.
The FDA and EPA advise pregnant women and young children to avoid high-mercury fish (swordfish, shark, king mackerel, tilefish, bigeye tuna). Low-mercury fish like salmon, sardines, and shrimp are still recommended.
What the research says
A 2026 study in ecotoxicol environ saf found that a multi-omics approach reveals PFHxS as an environmental driver of gastric cancer via KEAP1 downregulation..
Teng Q(1), Xu K(2), Yang X(1), Wang X(1), Chen W(3), Li Y(4)..
The research at a glance
| Study | Journal | Year |
|---|---|---|
| A multi-omics approach reveals PFHxS as an environmental driver of gastric cancer via KEAP1 downregulation. | Ecotoxicol Environ Saf | 2026 |
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