I'll go the other way on the red cell. I guess I just like to be different. I fed it to a awesome mare that I was barrel racing on alot. I don't feed much for suppliments, I'm a plain, grass hay, alfalfa cubes, and whole oats person, but they wanted to sponsor me so I took the deal. It's nice to get paid to run before you leave home and everyone had talked so good about it I was like you all "it couldn't hurt", but it did. It wasn't two weeks after I started feeding it to her that she went thorough some serious bouts of colic, plus it messed up her cycle really bad. She would come into heat for a week, then out for a week, in for two days, out for a month, in.... well you get the point. There was just no rhyme or reason to her cycles anymore. Plus, as I said a mare that had always been healthy was having bad colic about once a week. Sometimes I'd go check on her and she'd just be soaked with sweat and shaking, then a little while later she was fine. Well, I was young and dumb and didn't know much, and my parents and the vets kept saying "it's good stuff, that can't be what is causing this". Well, after she was on it for 2 months we had had enough and we took her off. Two weeks later she wansn't colicking anymore, no more shaking and sweating and after two months her cycles were more normal. It was six months before her cycles were fully normal again, but I have never used it since. I don't know if my mare was just a freak that had a reaction or what, but I won't use it anymore. I know that I have had alot of friends use it and almost everyone that uses it really likes it, but I'm just letting you know what happened to one of mine.