Stamina Plus has extensively researched muscle problems in horses, both in the research facility in Cody, Wyoming and in clinical cases. There are a few genetic problems like PSSM that can lead to muscle disorders in horses, but in most cases are controlled by a basic feeding program. All muscles need electrolytes and Vitamins, like Vitamin E and C, and Selenium on a daily basis. Most of the horses studied are basically deficient in these nutrients and some as simple as not having a salt block available on a daily basis. The take home message from these studies is to keep your feeding program simple, do not over feed, add electrolytes if working in hot weather or stressed (like hauling). The basic feeding program is hay, water, small amount of oats and Supplement daily. Stamina Plus has designed their Complete Equine Supplement to offer horses these important Nutrients on a daily basis with just 3 ounces per day.