Subject responses to the individual foods were converted into daily number of servings for each item.
#BLOOD TYPE DIET TYP O HOW TO#
Briefly, each subject was given instructions on how to complete the FFQ by using visual aids of portion sizes to improve the measurement of self-reported food intake. Considering the lack of scientific evidence and the popularity of the ‘Blood-Type’ diet, the objective of this study was to determine the association between ‘Blood-Type’ diets and biomarkers of cardiometabolic health and whether an individual's ABO genotype modifies any associations.ĭietary intake was assessed by a one-month, Toronto-modified Willet 196-item semi-quantitative food frequency questionnaire (FFQ) as described previously. A recent systematic review concluded that no evidence exists to support the proposed health benefits of ‘Blood-Type’ diets. However, little is known about whether the ABO blood group modifies an individual's response to diet. These findings demonstrate the potential importance of the ABO blood group in altering risk of disease, including cardiometabolic disease. Furthermore, group B individuals were found to have lower levels of E-selectin and a lower risk of type 2 diabetes compared to group O.
Regarding cardiometabolic diseases, individuals with blood group O were found to have lower levels of von Willebrand factor (VWF) and had a reduced risk of venous thromboembolism compared to the other blood groups. As one of the first recognizable genetic variants in humans, the ABO blood group has been studied extensively for its association with a variety of diseases including cancer, ,, , malaria, and cholera. The ABO blood group is a classification of blood based on the structural variation of a certain carbohydrate antigenic substance on red blood cells. The ‘Blood-Type’ diet also proposes that lectins, which are sugar-binding proteins found in certain foods, could cause agglutination if they are not compatible with an individual's ABO blood group. Finally, individuals with an AB blood group are believed to benefit from a diet that is intermediate to those proposed for group A and group B. Following the same rationale, individuals with blood group B are considered to benefit from consumption of dairy products because this blood group was believed to originate in nomadic tribes. In contrast, those with group A should thrive on a vegetarian diet as this blood group was believed to have evolved when humans settled down into agrarian societies. Based on the ‘Blood-Type’ diet theory, group O is considered the ancestral blood group in humans so their optimal diet should resemble the high animal protein diets typical of the hunter-gatherer era. D'Adamo postulates that the ABO blood group reveals the dietary habits of our ancestors and adherence to a diet specific to one's blood group can improve health and decrease risk of chronic diseases such as cardiovascular disease. The ‘Blood-Type’ diets have gained widespread attention from the public with more than 7 million copies sold in over 60 languages, and making the New York Times bestseller list. D'Adamo in his book “ Eat Right For Your Type” published in 1996.
A link between ABO blood group and diet was proposed by P.J.
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