Nutrition Diet: What is the #1 healthiest vegetable?
                                
                                
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                                    3 min read                                
                            
                                According to a landmark 2014 study by the Centers for Disease Control and Prevention (CDC) on “powerhouse” fruits and vegetables, watercress received a perfect score for nutrient density. But is there a single definitive answer to **What is the #1 healthiest vegetable?** This exploration goes beyond a single champion to discuss a variety of top contenders for a well-rounded Nutrition Diet.