What the Heck Is insulin resistance horse feed?

https://equine-nutrition161.brightsora.com/posts/horse-feed-for-weight-management-what-to-pick-and-for-what-reason

Gentle horse feed for sensitive stomachs, designed to support digestive comfort, hindgut health and better nutrient absorption. A low sugar fibre-rich formula with natural components to help maintain steady digestion and overall health.