What the Heck Is online grain free feed UK?

https://horse-nutrition428.lucialpiazzale.com/how-far-to-feed-a-500kg-horse-a-useful-horse-feed-guide

Gentle horse feed for sensitive stomachs, designed to support gut comfort, intestinal health and efficient nutrient uptake. A reduced-starch fiber-rich formula with natural ingredients to help maintain calm digestion and overall wellbeing.