What the Heck Is buy low starch feed?

https://www.mediafire.com/file/lz7q7h0gvwpozno/pdf-28291-81044.pdf/file

Gentle horse feed for sensitive stomachs, designed to support digestive comfort, hind gut health and better nutrient absorption. A reduced-starch high-fibre formula with natural ingredients to help maintain steady digestion and overall health.