Interesting. I have been feeding my chickens ground flax seed and pecans (there are a lot of pecan orchards in the area so it's easy to get old nuts which I just smash and let the chickens pick through them). I don't have any quantitative data but I'm hopeful it produces healthier eggs. At minimum it produces very tasty eggs.

  If one in three households had enough chickens to eat your kitchen scraps, there would not be an egg industry in the United States. It would be completely non-essential. -- https://x.com/JoelSalatin/status/1984757129463337063

This is great, but we must be quite close to a decent synthetic milk by now? It's just water, fats, lactose (possibly optional) and some proteins - no structure to worry about. It would cut out a lot of unnecessary steps.