What disease is caused by deficiency of ascorbic acid in diet?

Scurvy

The correct answer is option 4. Scurvy.

The disease caused by a deficiency of ascorbic acid (vitamin C) in the diet is Scurvy.

Ascorbic Acid (Vitamin C):

Vitamin C is essential for the synthesis of collagen, a protein that helps maintain the integrity of skin, blood vessels, bones, and connective tissue. It also has antioxidant properties and supports the immune system.

Scurvy:

Symptoms: Scurvy is characterized by symptoms such as bleeding gums, bruising, joint pain, and anemia. It occurs due to weakened blood vessels, connective tissue, and bone structure resulting from inadequate collagen synthesis.

Prevention and Treatment: Consuming foods rich in vitamin C, such as citrus fruits, tomatoes, potatoes, and green leafy vegetables, can prevent and treat scurvy.

Other Diseases Mentioned:

Cheilosis: This condition is characterized by inflammation and cracking at the corners of the mouth, often due to a deficiency in riboflavin (vitamin \(B_2\)).

Rickets: A disease caused by a deficiency of vitamin \(D\), calcium, or phosphate, leading to softening and weakening of bones in children.

Beri Beri: A disease caused by a deficiency of thiamine (vitamin \(B_1\)), leading to neurological and cardiovascular symptoms. Therefore, the correct answer is scurvy.