was their comment that fish contains similar amounts of dioxins, pesticides, etc. as beef, pork, and dairy.

Exactly. That's the problem with it!

A little OT but related...

For quite a while now I've avoided buying fish-containing cat food (except for rare treats), not so much because of the health risks but because we are killing too many fish -- and I think other shoppers may be doing the same thing.  Sometimes when I look for non-fish canned cat food on supermarket shelves, it's down to small amounts, while a lot of the fish-containing cat food sits there unsold.

Ideally my cats and I would not eat animal products at all (or shop at supermarkets?!), but I think owners of carnivorous pets as well as seafood lovers would like to know which products (if any) containing fish are safe both to fish populations and to our health.

For now I'll just continue to forego the fish, for me and for the cats.

In nature, the game is survival.   Anything that makes itself a target is not going to survive (unless there is some type of symbiosis where it effective gets a "kickback").

Running around saying that eating something is "good for you" really overstates the issue.   Poignant would be "I ate this, and I'm still alive".   That's the best we can always hope form.

The Texeme Construct offers international text memetics construction and textcasting services.

It would be great if someone who is knowledgable about these things could write an article about cat food (and dog food too) as I worry a lot about what's in it. Maybe someone from a vetinary school could do it? My vet said not to give my cats a "home cooked" diet as it would surely be too low in taurine. Right now I feed my kitties canned food made from chicken and turkey, and, for the one who needs "novel proteins" (due to allergies) he gets -- I kid you not! -- canned cat food made from duck, venison, and rabbit. It's expensive and he hates it and he just ends up eating the other one's Fancy Feast anyway.