Well - I don't know about the ketosis and calcium depletion but according to my hygienist the LC diet has increased the amount of tartar that builds up on my teeth... solution= i switched to a tartar controlled tooth paste & floss. Teeth are still shiny!

Do you drink sodas, tea, or coffee? that could dull your teeth... i drink coffee & tea through a straw that way the liquid doesn't brush over the front of my teeth. so far, it seems to do the trick.

Hope this helps, viv