I'd put all of those things under the umbrella of "clean eating". And barring some other condition like celiac disease, a diagnosed gluten intolerance, or lactose intolerance, they all seem like pointless dietary restrictions, but there are a lot of people who will buy something just because it's advertised as "gluten-free".
> At its simplest, clean eating is about ingesting nothing but “whole” or “unprocessed” foods (whatever is meant by these deeply ambiguous terms).