Hack Up Liquid Electrolytes are key to keeping my horse Thunder hydrated on and after hot days while competing. Being dark bay he attracts the heat and therefore he sweats a lot. The Liquid Electrolytes are easy to use, in the feed or in water, when clean water is also available. I have fed other brands of Electrolytes before and have never noticed a difference in the amount he drinks after a show which did worry me. After feeding Hack Up Liquid Electrolytes he drank more than usual overnight. This was a relief as he never drinks much while at a show, even if he is hot and sweaty!! Thanks very much Hack Up, Natalie Rampling and Thunder.