What Not to Eat With A+ Blood Type, According to Diet Theory
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5 min read
First popularized by naturopath Peter J. D'Adamo in his 1996 book, the blood type diet suggests that people with A+ blood should primarily follow a vegetarian plan, avoiding red meat and dairy. However, a 2013 systematic review published in the *American Journal of Clinical Nutrition* found no evidence to support the claimed health benefits of blood type diets.