I tried the orange juice diet and didn't do all that well, and I'm B+. But at the time I was very sick nothing was working well. I'm not a big fan of the blood type diet but wonder if there isn't something to it. I've fasted on apple juice and even just water and done better. Perhaps differences in blood type are made worse by multiple toxins that didn't exist during Dr. Hay's lifetime.
P.S. I'm not trying to provoke anyone with this post. Just sharing actual experiences.