Is Marrow a Carb? Understanding the Nutritional Profile
                                
                                
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                                    15 min read                                
                            
                                With a macronutrient breakdown that is over 90% fat, bone marrow contains virtually no carbohydrates. However, the answer to the question, "Is marrow a carb?" depends entirely on whether you are referring to animal bone marrow or vegetable marrow.