The info that I have re Eating for your blood type is from the book as well as from other practitioners. However more recently I saw on Dr. Mercola's site (mercola.com) an article of interest that addresses this issue of diet very well. I have pasted in the link and hope you can click on it, but it may have to be cut and pasted.
Myths and Information About Vegetarianism
Dr. Mercola researches everything extensively before publishing info. I have found that information is on his site sometimes 5 years ahead of the public media (eg. Vit D necessity and deficiency implications.) His newsletter is full of very valuable information that has been well documented. He also has great video clips of talks with major contributors and researchers in all areas of health and wellness.
LW888