It can be very confusing trying to find the right Equine supplement for your horse. With contents of ingredients in mg/lb, gm/lb, %, ppm, IU/lb etc and then to decide exactly how much your horse is getting with 2 to 3 ounces per day. After you have decided how much your horse gets of each ingredient per day, then you have to decide if that is the correct amount. I suggest that to choose a supplement you choose a company that has its own Equine Research Facility. This facility should have a history of operation for a number of years and should use that data to continue to update their supplements. It is also helpful that the company you choose has nutrition research data in the discipline you are using your horse in. The Equine Nutritionist should be available for consultation if you have any questions.