What Vitamin Deficiency Affects the Nail Fold?
                                
                                
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                                    3 min read                                
                            
                                According to studies, a deficiency in the B-vitamin biotin is a primary vitamin deficiency that can cause nails to split and affect the nail fold area. However, several other nutritional shortfalls can also impact the health of the skin and structures surrounding your nails, leading to various issues.