Are Black Walnuts Edible to Eat? A Guide to This Wild Nut
                                
                                
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                                    4 min read                                
                            
                                According to research from the University of Nebraska, black walnuts contain the highest level of protein of any tree nut and are a rich source of bioactive compounds. The answer is a definitive 'yes,' but proper harvesting and processing are essential to enjoy this flavorful, nutrient-dense wild food.