Will grain free feed for horses UK Ever Rule the World?

http://www.montpelierjournal.com/news/story/555500/with-half-of-britains-horses-overweight-bifid-launches-grainfree-lowsugar-feed-for-the-nations-gooddoers.html

Horse feed convalescent feed helps support healthy digestion, appetite and steady condition after being unwell, journeying or intense work