Since our dog was about 2 (she is 7 now) she has eaten primarily raw food (she only gets dog food when we are away and she stays with a relative). I'm hoping that she will be able avoid the problems of fluoride in her food. She eats the bones along with the organs so she should be getting everything she needs. I have started to give her a drop of Lugol's every day or so. We are also lucky in that our water is not fluoridated.