> Nutrical contians a small amount of cod liver oil but not enough to cause vitamin A
> toxicity from short term use. Long term use might be safe as well as long as the
> cat is not getting large amounts daily and is not eating a lot of liver. It is
> possible that it may cause problems with cats allergic to fish although some cats
> may only be allergic to one type of fish. I'm not a big fan of nutrical and I'd
> suggest talking to your vet about a higher energy food that would be appropriate
> for your cat's condition.
I guess I'll take that as a "yes, cod liver oil is really from cod."
Unfortunately, my cat's fish allergy appears to be indiscriminant. He
has also developed a food allergy to beef, so I'm pretty constrained
in the foods I can feed him. Many of the premium, super premium, and
prescription foods are not an option because even the poultry flavors
contain some beef or fish. It's taken months of searching, calling
food companies, and home trials to find a combination of wet and dry
food that he is both willing and able to eat.
As an aside to interested readers, in my calls I learned that most of
the time when "liver"--without a qualifier, "animal fat", or
"meat-by-products" were listed in the ingredients it usually meant
pork or beef & pork. I was very surprised.