Natural Health: Coffee conundrum

Q. My friend swears by the Blood Type diet. I have read the book, but it sounds like another diet gimmick.

Is there any scientific research behind this diet, and does it actually work?

A. This diet, outlined in Peter J D’Adamo’s book Eat Right 4 Your Type, was popular about 16 years ago with a number of celebrities of the time, (including Elizabeth Hurley), following and endorsing the method of eating and avoiding specific foods based on whether your blood group is A, B, AB, or O.