I feed Gertie and Ida Nature's Variety Prairie Chicken and Brown Rice. In the hope of avoiding allergies later on, I'm trying to give them variety now. I've noticed several members mentioning that they buy a different flavor of the same brand of food. I haven't done this yet. I can get lamb, beef, venison or salmon. Is this really a no problem, just switch to the new flavor type thing? I don't want to do something that will cause them problems, but if switching flavors is good for them and can be done without a gradual transition I'll get a differnt flavor next time. Does anyone else feed this brand?, and if so, do you get different flavors? Or, if you do this with some other brand, please tell me how this works out for you.