What the Heck Is low sugar pony feed?

http://haryanadaily.in//story/393395/with-half-of-britains-horses-overweight-bifid-launches-grainfree-lowsugar-feed-for-the-nations-gooddoers.html

Gentle horse feed for sensitive stomachs, designed to support gut comfort, intestinal health and easy nutrient absorption. A low-starch high-fibre formula with naturally sourced ingredients to help maintain settled digestion and overall wellbeing.