I bought then new Atkins book today.. I had the yellow one, She told me that she had a stroke, and that her doctor had recommended the grapefruit.. but I believe she had medical problems prior to Atkins. I was on this diet 4 years ago and lost 65 pounds, I am going to stop listening to anti Atkins and do the diet the way I did before. Im just happy I found an intelligent group of people that has seen the success and plateaus!!! AND one that answered my questions really quick!