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Is fish-based dog food safe long-term, considering mercury levels?

Updated On September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Female | spayed | 6 years and 4 months old | 17 lbs

Is it ok to feed a fish based dog food long term because of the possible toxin and mercury levels? Please explain thanks!

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on November 3rd, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! As long as it is a good quality diet, these levels are usually kept to a minimum to the point that it is ok to eat it longterm. I recommend brands such as Royal Canin, Purina and Science Diet. Good luck and have a good night!

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