I would also recommend the work of Weston Price. His book is chock full of one picture after the other of what poor nutrition does to teeth and facial features. Then he goes on to explain about the breakdown in society as a result of eating the "white man's way" with all of the processed flours and sugars that occurs to primitive isolated cultures when they come into contact with "civilization." It is pretty graphic and easy to drive a point home for those who wish to remain in the comfort of denial. My own husband has horrible teeth and not the best jaw bone development, but he continues to eat the junk he was raised on. He refuses to change his eating habits, and this book was a way for me to show him that it was not just my imagination that this way of eating is bad for one's health. He still has yet to change his eating habits though.
Best to you as you forge ahead for the sake of your children. How do you like the beet kvass?