I had heard that we should eat right for our blood type. Any one could point out any reliable sources about?

The books is called Eat Right for Your Type by Peter J. D'Adamo, ND. There are several online reviews of the diet and I've included one below.

There is a book called Eat Right For Your Type. He's also written books about living right for your type, etcetera, which goes into the different personalities, strengths, weaknesses, tendancies and needs of people based on their blood type.

Very interesting reading :)

better than eating right for your blood type, is eating right for your metabolic type which takes into account your blood type and all of the biochemical processes of your body! metabolic typing is similiar to blood typing, but much more detailed! Go to amazon and type in 'the metabolic typing diet'. you'll really like it! again, this is far better than just eating for your blood group, as in incorporate many of the body systems, not just one! - hope this helped!

there is a book called eat right for your blood type