I have a gallon waterer (?) for my dog and cat and I put a few drops of Iodine and a few shakes of Sea Salt in it each time I fill it. They both love it and have noticed that the water bowl needs to be filled more often. On another note, when it's hot out and I'm wearing shorts, I find that dogs like to lick my legs. They don't do it to any other members of my family, and I'm the only one taking iodine. Maybe it's the combo of the Iodine sweating out and the salty sweat they like?