What the Heck Is calorie controlled horse feed?

http://business.theeveningleader.com/theeveningleader/markets/article/abnewswire-2026-7-24-with-half-of-britains-horses-overweight-bifid-launches-grain-free-low-sugar-feed-for-the-nations-good-doers/

Gentle horse feed for sensitive stomachs, designed to support gut comfort, hind gut health and better nutrient absorption. A reduced-starch fiber-rich formula with natural components to help maintain calm digestion and overall wellbeing.