How many walnuts equal 30 grams? Your guide to portion size
                                
                                
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                                    2 min read                                
                            
                                According to reputable nutrition sources, a standard one-ounce (30-gram) serving of shelled walnuts is equivalent to approximately 14 halves or about 10 whole kernels. This provides a straightforward way to manage portion size without needing a food scale.