Can blood type O eat cereal? Exploring the Blood Type Diet
                                
                                
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                                    4 min read                                
                            
                                First published in 1996, Dr. Peter D'Adamo's *Eat Right 4 Your Type* book popularized the controversial blood type diet theory. Based on this theory, the question, "Can blood type O eat cereal?" is debated, as most grains are typically considered an 'avoid' food.