A few fingernails have changed color (grayish) and some weird vertical grooves have developed. Along with that the skin around my nails is tearing, so

I'm under the impression that I have a vitamin deficiency of some kind. What kinds of vitamin deficiencies are related to fingers/fingernails?

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cherokeepatti · 61-69, F

Grey nails can be caused by edema, arthritis problems, malnutrition, post-operative effects, glaucoma, lung problems, emphysema, cardio-pulmonary disease. Vertical ridges may be associated with kidney disorders, aging, anemia, or the tendency to develop arthritis.