The deficiency of which of the following vitamins causes Pellagra?

The correct answer is B3.

Key Points

• Niacin (vitamin B3) deficiency results in a condition known as pellagra.
• Pellagra includes the triad of dermatitis, dementia, and diarrhea and can result in death.
• Niacin deficiency can occur through genetic disorders, malabsorptive conditions, and interaction with certain medications.
• Vitamin B3 is found naturally in a wide variety of both animal and plant-based foods, including beef, liver, poultry, eggs, dairy products, fish, nuts, seeds, legumes, avocados, and whole grains.

Additional Information

• A deficiency of vitamin B1 commonly leads to beriberi, a condition that features problems with the peripheral nerves and wasting. Weight loss and anorexia can develop. There may be mental problems, including confusion and short-term memory loss.
• Vitamin B5 deficiency is rare but may include symptoms such as fatigue, insomnia, depression, irritability, vomiting, stomach pains, burning feet, and upper respiratory infections.
• Riboflavin deficiency(B2) can cause fatigue, swollen throat, blurred vision, and depression. It can affect the skin by causing skin crack, itching, and dermatitis around the mouth. Hyperemia and edema around the throat, liver degeneration and hair loss can also occur along with reproductive issues.