Rahnama agrees: The recommendations listed for each blood type should never trump other proven measures of health. “Nutritionally speaking, any diet that is as restrictive as the Blood Type Diet and advocates eliminating entire food groups has the potential to be deficient in some areas,” says Sollid.ĭr. Keep in mind that the Blood Type Diet might also promote some unhealthy eating habits. Potential drawbacks of the Blood Type Diet The key caveat is that this just has nothing to do with your blood type. “Despite the lack evidence to support the Blood Type Diet, many do feel better when attempting this restricted plan because it promotes a cleaner diet devoid of junk food, processed food, and sugar,” Dr. That can’t hurt: “Ultra-processed” foods-products that contain substances not typically used in cooking to mimic real food-make up nearly 60 percent of the total calories Americans eat and 90 percent of the calories consumed from added sugar, according to study published in the BMJ Open. Plus, eliminating processed foods is recommended across all blood types. Vegetarian diets are rich in nutrients and typically low in calories, which can help prevent certain diseases and lead to a lower body weight, according to American Dietetic Association. For example, the plant-based recommendations for type A blood has its perks-for anyone. Getty Images So, does the Blood Type Diet have any benefits?ĭespite the lack of evidence surrounding the diet as a whole, there are elements of the Blood Type Diet that are supported by science. The Blood Type Diet claims type A people thrive on a vegetarian diet. What’s more, a 2018 study published in the Journal of Nutrition found that the Blood Type Diet didn’t have any significant health impact on overweight adults. After analyzing data from more than 1,400 patients, researchers discovered that sticking to certain blood type diet recommendations did have positive effects-like a lower BMI and blood pressure-but those were independent of a person’s blood type. The next year, a new study explored whether the Blood Type Diet could improve health markers associated with heart disease and diabetes. One 2013 review published in the American Journal of Clinical Nutrition concluded that “no evidence currently exists to validate the purported health benefits of blood type diets.” “There is no explanation to support a link between an individual’s blood type and their interactions with certain foods and weight,” says Nancy Rahnama, MD, a board-certified bariatric physician. When you take a closer look at the research, scientific backing for the Blood Type Diet falls short. What Is the Dubrow Diet? Interval Eating Explained. ![]() More importantly, he says, weight loss does not solely determine whether or not your diet is actually good for you. “Any diet can lead to weight loss, but that’s related to the number of calories you eat, your age, and how active you are,” explains Sollid. Technically, the blood type diet can help you lose weight. “The premise of the blood type diet is interesting from the perspective that it doesn’t recommend the exact same foods for everyone,” says Kris Sollid, RD, senior director of nutrition communications at the International Food Information Council Foundation. Focus on foods like tofu, seafood, cultured dairy, and green vegetables for weight loss.Ĭan the Blood Type Diet help you lose weight? Or improve your health? ![]()
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