How many hazelnuts are in 1 ounce? A detailed serving guide
                                
                                
                                •
                                
                                
                        
                                    
                                    3 min read                                
                            
                                According to USDA data cited by nutrition experts, a standard one-ounce (28g) serving of hazelnuts contains approximately 21 whole kernels. This measurement serves as a reliable benchmark for figuring out how many hazelnuts are in 1 ounce and controlling your portion sizes, although the precise number can vary slightly depending on the nuts' size and variety.