Your pooch may be deficient in immune support trace-minerals if they drink tap or filtered water and especially if they eat dry dog food which can dehydrate them. Doggie Lyte when added to their water bowl gives them 72 electrolyte-forming ionic trace minerals that are essential for good health, bones and teeth. The 2oz. bottle is easy to squirt into water. 10-15 pumps for 8-16 ounces of water. Great for puppies, active dogs and especially for senior dogs who many need extra minerals to help their bones.