Department of Health and Human Services and U.S. Journal of the Academy of Nutrition and Dietetics. Blood type is not associated with changes in cardiometabolic outcomes in response to a plant-based dietary intervention. doi:10.1371/journal.pone.0084749īarnard ND, Rembert E, Freeman A, Bradshaw M, Holubkov R, Kahleova H. Type O blood may be somewhat less likely to test positive for COVID-19 and have less severe disease than people with other blood types Negative blood types may. ABO genotype, 'blood-type' diet and cardiometabolic risk factors. Wang J, García-Bailo B, Nielsen DE, El-Sohemy A. Defining the optimal dietary approach for safe, effective and sustainable weight loss in overweight and obese adults. Koliaki C, Spinos T, Spinou Μ, Brinia Μ-E, Mitsopoulou D, Katsilambros N. Eggs (in moderation) It’s important to note that individuals with blood type O negative should avoid processed meats such as bacon, ham, and sausages, as they can cause inflammation and digestive issues. Seafood clams, crab, lobster, mussels, oysters, and shrimp. Diet and exercise in management of obesity and overweight. Fish cod, halibut, herring, mackerel, salmon, sardines, and trout. Blood type diets lack supporting evidence: A systematic review. Another 2020 review also found that there are no cardiometabolic benefits to be gained from the blood type diet.Ĭusack L, De Buck E, Compernolle V, Vandekerckhove P. In this review, scientists looked at 16 previously published reports on the blood type diet. Not backed by evidence: A research review published in 2013 no evidence to support any of the health claims associated with the blood type diet.Can be restrictive: Since the diets prescribed for blood types A and O are restrictive, there's some concern that individuals following these diets may fail to achieve sufficient intake of many vitamins and minerals that are essential for health.Requires unsubstantiated supplements: Although proponents of the blood type diet suggest that the use of dietary supplements can help people following the diet plan meet their nutritional needs, such supplements are not regarded as a reasonable substitute for a healthy, balanced meal plan.Anyone following some of the diets, no matter their blood type, may either see benefits or no changes, according to the study.

The available research on the blood type diet includes a study published in the journal PLoS One in 2014. Not based on science: Eating for your specific blood type is not rooted in science.Not effective: There is no research to support that the blood-type diet is an effective weight-loss strategy.

Best diet for o negative blood type