What the Heck Is clinical EMS feed?

https://horse-feed-range655.swiftnestly.com/posts/horse-feed-for-horses-requiring-condition-what-to-choose-and-the-reason

Gentle horse feed for sensitive stomachs, designed to support comfortable digestion, hindgut health and efficient nutrient uptake. A low-starch fiber-rich formula with naturally sourced ingredients to help maintain settled digestion and overall wellbeing.