Answer :
A patient with a poor diet showing symptoms of diarrhea, confusion, and discoloration of the skin suggest possible Niacin deficiency.
Niacin is a B vitamin that your body produces and uses to convert food into energy. It supports the health of your nervous system, digestive system, and skin. Niacin (vitamin B-3) is frequently included in daily multivitamins, but most people get enough niacin from their diet.
A severe niacin deficiency causes pellagra, a condition characterized by a dark, sometimes scaly rash on sun-exposed skin areas, bright redness of the tongue, and constipation/diarrhea. Depression is another sign of severe niacin deficiency. Headache.
Niacin deficiency is more likely to be caused by problems with niacin or tryptophan absorption. Alcoholism is the most common cause. Other possible causes include digestive problems and long-term use of the tuberculosis drug isoniazid.
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