Nug had been suffering from painful muscle spasms, similar to tying up. So I was advised to give Simple System a go as he was often unable to be ridden..... brilliant on this diet and with regular physiotherapy we are well on the way to making a recovery from this condition. The added bonus is that I have had so many comments about his condition as he truly looks fabulous and won all his showing classes in 2011.... so my mare is now on Simple System too!