Do all the supplements, concentrates, and forages on the market have you confused about what’s best to feed your horse? Learn what your horse really needs to eat from equine nutritionist and consultant, Dr. Clair Thunes.Do all the supplements, concentrates, and forages on the market have you confused about what’s best to feed your horse? Learn what your horse really needs to eat from equine nutritionist and consultant, Dr. Clair Thunes.8/29/2014 1:30