Blood Type Diet Confirmed to Not Have Any Scientific Evidence

A recent study confirms that there is actually no truth of scientific evidence to the effectiveness of the Blood Type Diet.

Canadian researchers found the science behind the popular diet does not add up. The Blood Type Diet which was based on the theory that people's nutritional needs vary by blood type has been found to be ineffective. "Based on the data of 1,455 participants, we found no evidence to support the Blood Type Diet theory," said senior author of the study, Dr. Ahmed El-Sohemy, Associate Professor at the University of Toronto. "The way an individual responds to any one of these diets has absolutely nothing to do with their blood type and has everything to do with their ability to stick to a sensible vegetarian or low-carbohydrate diet," he added.

The researchers involved in the study found out that the associations they observed between each of the four blood types: A, B, O and AB, and the markers of health are independent of the person's blood type. The Blood Type Diet gained popularity after the release of the book "Eat Right for Your Type" by naturopath Peter D'Adamo. The diet posits that individuals adhering to a diet specific to one's blood type can improve health and decrease risk of chronic illness such as cardiovascular disease.

However, Dr. El-Sohemy clarified that a previous lack of scientific evidence does not automatically mean that the diet does not work. "There was just not evidence, one way or the other. It was an intriguing hypothesis so we felt we should put it to test. We can now be confident in saying that the Blood Type Diet hypothesis is false."