Which vitamin deficiency causes visual snow? Separating myth from medical fact
                                
                                
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                                    4 min read                                
                            
                                According to community-shared treatment experiences, vitamin B12 is the 8th most tried supplement among people with visual snow syndrome, despite its effectiveness being unproven. While there is no single vitamin deficiency that causes visual snow, certain deficiencies can cause visual disturbances that may be mistaken for it.