Sentence Correction (SC) | Re: QOTD: According to recent studies comparing

B. wild animals have less total fat than livestock fed on grain and more of a kind of fat thought to be
There’s no pronoun here, so that’s cool. And I think the meaning works: “wild animals have less total fat than livestock fed on grain” is fine. The second part seems fine, too: “wild animals have… more of a kind of fat thought to be good for cardiac health.”

I don’t see any huge issues, so let’s keep (B).