An optional statement on nutrition label unless added as a nutrient supplement. It is a water-soluble vitamin and helps the body release energy from protein, fat and carbohydrate. Niacin promotes healthy skin nerves and digestion, and also fosters normal appetite. Functions as a co-enzyme. Deficiency is human pellagra, skin eruption, loss of appetite, nausea, vomiting and abdominal pain, dilation of blood vessels and atrophy, lesions in the colon, diarrhea, and disruption of the nervous system. Food sources are liver, kidney, meat, yeasts, cereals, legumes, green and leafy vegetables.