Physical
- dark skin patches
- dark knuckles
- dark eye area
- peeling skin
- redness
- scaly skin
- skin thickening
- mouth sores
- inflamed skin
- dementia
- diarrhea
Mental
- apathy
- dementia
- headaches
- depression
- low energy
- confusion
- irritability
- mood changes
- anxiety
- uneasy
- restless
- delusional
- disorientation
Other possible pellagra symptoms include:
- sores on the lips, tongue, or gums
- decreased appetite
- trouble eating and drinking
- nausea and vomiting