The Nutritional Breakdown: How Much Protein is in a 1/4 Cup of Walnuts?
                                
                                
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                                    4 min read                                
                            
                                A single 1-ounce serving of walnuts, which is roughly equivalent to a 1/4 cup, contains approximately 4 to 5 grams of plant-based protein. This makes walnuts a significant contributor to your daily protein intake, in addition to being rich in heart-healthy fats and vital nutrients.