SeafoodCheck (formerly FishToxicity) is your ultimate pocket guide to mercury levels in seafood with trustworthy data from FDA. Pregnant women, those who may become pregnant, breastfeeding mothers, and young children are encouraged to eat more fish and to eat a variety of fish from choices that are lower in mercury according to advice from FDA and EPA in 2014. You can easily type in the name of the fish/seafood you are about to buy or eat and check out its mercury level and eating guide. The mercury concentration data presented in this app is from FDA: Mercury Levels in Commercial Fish and Shellfish (1990-2010). Level classification and eating guide are from NRDC's Consumer Guide to Mercury in Fish.

What’s New

Version 1.4

Update app name to SeafoodCheck.

App Privacy

The developer, Yaoyu Yang, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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