Diet and disease : Brittle weak nails can be caused by deficiency in iron, biotin, zinc, silica, calcium, vitamin c, thyroid, estrogen, and magnesium. You can see it might be good to see your doctor to check out. It is a good thing to have this external sign of deficiency. You can get better.
Answered 4/26/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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