Which liver is high in protein? A nutritional comparison
                                
                                
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                                    4 min read                                
                            
                                With a 100-gram serving of beef liver containing nearly 30 grams of high-quality, complete protein, this organ meat is a verifiable nutritional powerhouse. But beyond the well-known beef variety, many animal livers are excellent protein sources. So, which liver is high in protein, and how do they stack up against each other in overall nutritional value?