What the Heck Is low-calorie senior feed UAE?

https://www.corydontimes.com/online_features/press_releases/in-the-home-of-endurance-racing-bifid-brings-grain-free-gut-first-feed-to-the/article_1a99f0ce-c8df-5bda-bb92-55deb86f9590.html

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