Can B12 Deficiency Cause White Patches on Skin?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                Studies have shown that vitamin B12 is essential for melanin production, and a deficiency can disrupt this process. This disruption is a potential reason why a B12 deficiency can cause white patches on skin, though it is not the only possible cause.