What is the NPN Content of Milk?
                                
                                
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                                    5 min read                                
                            
                                In cow's milk, non-protein nitrogen (NPN) typically makes up only 3-5% of the total nitrogen, a stark contrast to human milk where it can be as high as 20-25%. This article clarifies what is the NPN content of milk, its components, significance for quality control, and how it varies.