I noticed this today on Amazon. Interesting! I haven't seen this at pet food places yet. It definitely intrigues me, although I don't really have a cat with digestive problems right now (thank goodness). Wheat grass is that stuff that they often sell at pet stores. It can make cats throw up, getting rid of hair balls etc. And of course pumpkin is useful for helping with firming up runny poo. And Tiki Cat is a company I admire a lot. Might be worth a try for those having such issues. My real question is whether cats will want to ingest this stuff!
https://www.amazon.com/gp/product/B07KYSZHYC