Niacin, also known as Vitamin B₃, is a water-soluable vitamin whose primary role is in helping with energy production inside cells, along with thiamin and riboflavin. It also helps in the maintenance of the digestive and nervous systems.

Good sources of Niacin

• Food sources high in protein. The body can convert the tryptophan inside protein into Niacin.
• Grain products such as enriches cereals and breads

Signs of Niacin Deficiency

• Skin disorders
• Diarrhea
• Confusion
• Irritability
• A smooth tongue
• Loss of appetite
• Weakness and dizziness

References:

• National Research Council. Recommended Dietary Allowances, 10th Edition. Washington: 1989.
• Brody, Jane. Jane Brody's Nutrition Book. Bantam Books. 1987.