I discovered Dr. D'Adamo and his discoveries listening to the Laura Lee show from Seattle. It sounded right, and I tried it. I first followed the O diet for the first few weeks, but following a blood donation, I learned I was B-. I've not been perfect, but I keep getting better at it.
I was suffering from repetitive stress syndrome, chronic fatigue and a bunch of other chemical and cognitive disorders. Slowly but surely I've recovered nicely. I thank Dr. D for a big part of it. I also started yoga practice shortly before changing my diet for good.
Mostly what I think I got from following the book and the website is realization. I just didn't notice what I ate or how it affected me. The first couple of years were kinda confusing and rough, but the benefits were clearly evident. I'm not one to stick to things, but this has stuck. I hope others give it a serious shot.