Mercury is a natural element that can be released via volcanos or human activities like mining.
Once mercury gets into the water, its converted into toxicmethylmercuryand consumed by fish.
As fish eat other fish, more and more methylmercury gets built up in their systems.
Photo Illustration by Michela Buttignol for Verywell Health; Getty Images
Why Is Tuna Riskier Than Other Fish?
Should You Avoid Eating Tuna?
You shouldnt have to cut out all your seafood consumption because of concerns about mercury exposure.
Omega-3 fatty acids support healthy brain development and reduce heart disease risk.
Food and Drug Administration.Advice about eating fish.
Environmental Protection Agency.How people are exposed to mercury.
Consumer Reports.How worried should you be about mercury in your tuna?
fish advice may expose babies to too much mercury.
