Does Lion's Mane Contain Vitamin B12? Separating Fact from Fungi Fiction
                                
                                
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                                    4 min read                                
                            
                                While some studies have detected trace amounts of B12 in Lion's Mane, a significant portion of this is a biologically inactive compound, making it an unreliable source for meeting daily requirements. The answer to **'Does Lion's Mane contain vitamin B12?'** is not as simple as a yes or no, particularly for those on a plant-based diet.