What Are the Signs of Niacin Deficiency?
A person who has a niacin deficiency may develop symptoms that affect his skin, mucous membranes, gastrointestinal system, and even his central nervous system. Those who develop skin symptoms because of a niacin deficiency may develop rashes and lesions. Often, the mouth is affected, and people may develop reddened, painful, ulcerated areas in the mouth as well as an increase in saliva production. A person with a niacin deficiency may also develop abdominal discomfort, constipation, and even bloody diarrhea. Women may also experience pain and redness in the vaginal area. Severe cases may result in psychological changes and dementia as well. When a person has a niacin deficiency, he often develops signs that affect his skin. For example, he may develop lesions and rashes at pressure points on his body as well as in places that are exposed to the sun. When the face is affected, a butterfly-like rash may form or the person may develop a necklace-like ring around his neck. Lesions may also
