Recently I came across John O'Leary's web site where he claims to have a preventative recipe for sand colic. I purchased the recipe and would like to hear from others who have tried this remedy with success before I use it myself. It seems a bit bizarre to say the least! According to the recipe it is almost foolproof, and I am keen to give it a go as my mare is displaying signs of sand colic and I am quite worried. Has anyone any feedback - good or not so good? Many thanks!