Many: Night blindness is one of the first signs of vitamin a deficiency. Vitamin B12 deficiency can cause permanent damage to nervous tissue if left untreated longer than 6 months.[scurvy is a disease resulting from a deficiency of vitamin c. Vitamin d deficiency has been associated with rickets, a disease in which the bone tissue doesn't properly mineralize. Sorry , there is not room for more.
Answered 12/30/2014
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