Helpful site: It's Not as Difficult as You Think

https://www.seacoastecho.com/online_features/press_releases/in-the-home-of-endurance-racing-bifid-brings-grain-free-gut-first-feed-to-the/article_c7baea42-d6bc-59f5-abf2-5a41968e742f.html

Horse feed with barley mix provides a nutritionally balanced supply of energy, roughage, and readily absorbed nutrients for healthy performance and consistent body condition