The blood type diet (BTD), also known as the blood group diet, was popularized in 1996 by Dr. Peter D’Adamo in his book “Eat Right 4 Your Type.”

In this book, Dr. D’Adamo claims the optimal diet and exercise regimen for any one individual depends on their ABO blood type. This may supposedly have benefits like improved health and decreased risk of chronic diseases.

He also claims that each blood type represents the genetic traits of our ancestors, such as which diet they evolved to thrive on.

Keep reading to learn more about the BTD and if it’s right for you.