Hi

My name is stacey and am new here ! i breed bengal and bengal cross kittens i have to say in regards to your runny poo problem it does sound to me you made the change too quick try adding half and half of the biscuits and decrease the biscuit you dont want your dog to have over a period of time until he is only eating the new brand, also you could try holistic eagle food it comes from america and it is high in protein and have added vitamins and minerals if you look on my website you will see a link to a shop called zoo that provides this food for cats and i think dogs too, i found once i used this product that my cats never have runny poo and they eat less as they are getting everything they need from this food than they did on others. its expensive but worth a try