can vitamin d deficiency affect fingernails
This is your nail bed on cholecalciferol: my fingernails and vitamin D3. Further to my earlier post on supplements that helped to grow my fingernails, I can report that 15,000 IU of vitamin D3 a day for two weeks did amazing things. It basically did the same thing that 8 mg of methylfolate did, although the folate seemed to work faster.