why do my fingernails curl ?

I'm a 51 yr old caucasian female and my fingernails have a tendency the curl over as they grow out. This has been happening regularly for quite a few years. If I've had my hands in water, they straighten out until they have dried, then curl again. I've been told it might be a vitamin deficiency. Can you help?  Thank you, Barbara

[hurkemer]

If you've ever experianced this or know someone who has please explain I would like to know if its just a vitamin deficiency ,or ? thank you Barbara

[tbabi20]

Usually an insufficient intake of the Vitamin B12 tends to cause excessively dry, very curved and rounded nail ends.

In some cases, downward-curved nail ends possibly could denote liver, heart or respiratory problems.

It could also just be a iron deficiency. :D

I know alot of people with bent nails and they just cut them a little shorter or they learn to deal with how they look.

[FAnne]

Hydrolcloric Acid or HCL will take care of it. It did me! Take as directed with each meal. Available at all health food stores.