I have vertical lines or ridges on all of my fingernails.

I have vertical lines or “ridges” on all of my fingernails and have been told by various people that it is a calcium deficiency, an iron deficiency, a vitamin A deficiency, etc. I’d like to find out once and for all what kind of deficiency it is if any. My nails rarely chip or break and they are strong and appear healthy except for the ridges. What can I do to get rid of them? Thank you.

Are you eating enough protein? I would recommend you discuss this with your doctor to determine if you have a protein absorption problem or it may be the result of a recent fever. It takes about 9 months for a nail to grow from the nail bed to the end of your finger. So if you have nail ridges, they will be there until your nail grows out to the end of your finger when you can trim off the ridged nail. Nails most often reflect iron status in your body but are also affected by protein status and fever.