I have dozens of patients on PROTEK GI, two of my own. I can personally tell you that our selle francais jumper is much more settled in his job- less fussy in his bridle, more content to be brushed and touched. His course work is cleaner (jumping in better form) because he is more relaxed. The other younger jumper has put on weight (he was a hard keeper, finicky and poor appetite), eating normally and full of confidence in the field now, bucking and playing with the other horses. It's a rare patient that owner doesn't notice the difference in the first few weeks, when they are on the PROTEK GI. It's a bit pricey or I would put more horses on it- but for those that are in immediate need, it is well worth it.