I sincerely doubt any diet rich in (reasonably fatty, reasonably "unprocessed") meat would show a Vitamin A deficiency, unless too much of such plant matter as

I sincerely doubt any diet rich in (reasonably fatty, reasonably "unprocessed") meat would show a Vitamin A deficiency, unless too much of such plant matter as hampers bioavailability and absorption is consumed concurrently. Of course, a diet sufficient in (decent) meat is precisely what the world's poorest can't quite afford. But just to pick nits.