My dog for the last two months has had loose stool. So I researched dog food and got him a good brand. I made sure I did not over feed him. Then I took the next steep and took him to the vet and had his stool tested for worms and anything else. Well that came back clean and the vet was stumped and kept saying try this kind of food which was junk food. So I decided today to try a new vet and lo and behold he found the problem in 5 minutes with a test. Found out it was Giardia so he is on medicine for that at least I finally know. The vet said its not hard to get rid of but I have to stop letting him drink from the lake I live on, that maybe that is where he got it. Has any one dealt with this Giardia before and was it that simple to fix? Another thing I learn a second opinion is needed in dogs also not just us. These dang dogs are like kids heck I watch how I feed them and take care of them almost better than I did my kids lol.