Diet and exercise in management of obesity and overweight. 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.The foods included on each of the diets aren’t necessarily going to be harmful, but excluding the specific foods highlighted is likely unnecessarily restrictive, Zeratsky said. People with type AB blood are directed to eat tofu, dairy, leafy greens and seafood and should avoid caffeine, alcohol and all smoked or cured meats.Īre there any risks to following the Blood Type Diet?.People with type O blood are encouraged to eat high-protein foods, focusing on eating meat, vegetables, fruits and fish, but should limit grains, beans and legumes.People with type B blood should avoid: corn, wheat, buckwheat, lentils, tomatoes, peanuts, sesame seeds and chicken. People with type B blood are advised to eat diets rich in green vegetables, fruit, dairy, eggs and certain meat, including goat, lamb, mutton, rabbit and venison.People with type A blood do best with a vegetarian diet and should stick to “pure, fresh and organic” foods when possible, according to the Blood Type Diet website.Health & Wellness How to eat a plant-based diet (without giving up meat) What will I eat on the Blood Type Diet? “I would say that the body of evidence around the Blood Type Diet indicates that there isn’t evidence to support its use,” Katherine Zeratsky, a registered dietitian at the Mayo Clinic in Rochester, Minnesota, told TODAY. But there’s no data to show that the different sets of foods prescribed by the Blood Type Diet will prevent those diseases any better than if people were to follow a general healthy diet with evidence to show it lowers heart disease or cancer risk (such as those recommended by the American Heart Association and the American Cancer Society). ![]() There is some evidence that certain chronic diseases, like some cancers and heart problems, can be more likely in people of various blood types. ![]() What does the science say about the Blood Type Diet? Still curious about what the diet entails? Here's what you need to know. While D’Adamo claimed the diet recommendations are based on rigorous clinical evidence, independent reviews conclude that evidence is effectively non-existent. The Blood Type Diet was developed by Paul D’Adamo, a naturopathic physician, and first published in his 1996 book, "Eat Right For Your Type."
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