I started atkins for the first time Dec 2003 and I noticed my hair significantly falling out by the end of February. It slowed down to normal after about 4 months. When I stopped Atkins for about 6 months, I didn't notice any hair growing back. I re-started Atkins for the 3rd time this year at the end of March and this time I have not noticed hair falling more than normal, but it still hasn't grown back. I have been waiting for the hair to grow back that's shinier, healthier and more luxurius like some people reported but at this point I'd just want any hair to grow back. I'm looking a bit sparse.