Hormones are better than mercury
I have heard that hormones fed to chickens lead to breast enlargement in the humans that consume them. That's much nicer than brain damage from mercury in the tuna. Ask any mermaid you happen to see...Canned chicken ain't that bad, after it is cooked into something. But Fuzz has to be the one to open the can and turn it into a meal. Between the smell (I like chicken, hot, but not real fond of plain boiled chicken) and the gelatinous stuff on top,
Of course, I feel the same way about canned meat of any sort, including vienna sausage and tuna. Guess if it was all I had to eat, I'd manage it somehow.