What the Heck Is diet feed low starch UAE?

https://www.swxlocalsports.com/online_features/press_releases/in-the-home-of-endurance-racing-bifid-brings-grain-free-gut-first-feed-to-the/article_338131db-1e11-53b5-9cc9-67b0ca3f74d9.html

Liquid horse feed supplements help maintain hydration, digestive health, and daily nutrient balance for performance horses and pasture horses alike