What Vitamin Deficiency Causes Vertical Lines on Fingernails? A Closer Look
                                
                                
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                                    4 min read                                
                            
                                While most people attribute them to normal aging, vertical lines on fingernails can sometimes be an indicator of a nutritional issue. The specific vitamin deficiency causes vertical lines on fingernails, along with other underlying health factors, are crucial to understand for maintaining overall wellness.