Can O Negative Eat Avocado? Debunking the Blood Type Diet
                                
                                
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                                    3 min read                                
                            
                                According to a 2013 review in the *American Journal of Clinical Nutrition*, there is no scientific evidence to support the claims of the blood type diet. This means that the popular myth dictating what foods, like avocado, a person with O negative blood should or should not eat is not based on sound scientific principles.