I had gestational diabetes, and I was so grateful for all of the low carb diet materials available. A lot of the low carb diet recipes work for diabetics.
I have met so many people who swear by low carb diets, I wonder why it is that they are working for these people - perhaps they have a tendency toward blood sugar swings and these diets work better for them?
I took enough biology classes in college to know why Atkins leads to so many problems, so I am not defending completely the low carb diet. I just think that something else may be going on that isn't really being studied or explored.
Oh, and I remember my mom trying the grapefruit diet probably 25+ years ago. Didn't work.