D2I2.
nutritional

Pellagra (Vitamin B3)

Pellagra is a disease caused by a lack of the vitamin niacin (vitamin B3). Symptoms include inflamed skin, , , and sores in the mouth. Areas of the skin exposed to friction and are typically affected first. Over time, affected skin may become darker, stiffen, peel, or bleed.

Underlined words are explained — tap any of them.

Symptoms — what it feels like

  • · of the skin, , , sores in the mouth

Causes — why it happens

  • ·Not enough niacin

How it's found

  • ·Based on symptoms

Prevention

  • ·Consuming Niacin

Treatment

  • ·Nicotinic acid or nicotinamide supplementation.

Outlook

  • ·Good (with treatment), death in ~ 5 years (without treatment)
Plain-language summary adapted from Wikipedia. Not medical advice.