There are threads here that talk about gluten-free feed recipes, like this one: https://www.backyardchickens.com/threads/gluten-free-feed.702367/Hey all! I have celiac and the chicken feed is really getting to me. I need some ideas or recipes for layer feed that is gluten free. Thanks in advance!
It's old, but I'm sure there are some pointers to be gleaned, if you have time for a deep dive! Gluten isn't an issue for me, so I don't pay as much attention to that, but I've seen lots of discussion go by; some folks have less sensitivity to non-GMO feeds. You might also consider searching on YouTube.