Which is a nutritional disorder caused by vitamin B3 deficiency, leading to clinical manifestations from the skin gastrointestinal tract and nervous system?

The correct answer is Pellagra.

Key Points

• Pellagra is a nutritional disorder caused by vitamin B3 (niacin) deficiency.
• Clinical manifestations of pellagra include skin rashes, diarrhea, dementia, and eventually death if left untreated.
• Vitamin B3 is important for energy production, metabolism, and DNA repair.
• Pellagra was once a common disease in the United States, particularly in the southern states, but it became rare after the fortification of grain products with niacin.

Additional Information

• Anaemia:
  • Anemia is a blood condition where the blood's capacity to carry oxygen is diminished because there are fewer red blood cells in the blood than usual.
  • It can be caused by various factors such as iron deficiency, vitamin B12 deficiency, or chronic disease.
• Beri Beri:
  • It is a disease caused by thiamine (vitamin B1) deficiency.
  • It can lead to symptoms such as fatigue, muscle weakness, and nerve damage.
• Scurvy:
  • It is a disease caused by vitamin C deficiency.
  • It can lead to symptoms such as bleeding gums, skin rash, and joint pain.