Thank you for telling me about Gatoraid.. I used Rehydatetabs last year and I diluted them.. I also was at pheasant feast and talked to the Rep. My dog is a 5 year old Lab that does not slow down.. 2 years ago we had problem with him after 2 days.. last year he hunted all 5 days but it was a lot colder so I amy not sure if it was the pills or the cold weather that made him hunt better..