Many varieties of tinned fish are very low in mercury, often due to their short lifetimes or shallow depth: https://www.consumerreports.org/cro/magazine/2014/10

Many varieties of tinned fish are very low in mercury, often due to their short lifetimes or shallow depth: https://www.consumerreports.org/cro/magazine/2014/10/can-eating-the-wrong-fish-put-you-at-higher-risk-for-mercury-exposure/index.htm https://www.consumerreports.org/cro/magazine/2014/10/can-eat... (For any readers who haven’t tried a great sardine, look for Matiz, La Gondola, any Portuguese brand, or in France, Rödel.)