Question

The deficiency of vitamin A causes?
1. Weakness
2. Dysentery
3. Hair to fall
4. Night blindness

Answer 1

Correct Answer - Option 4 : Night blindness

The correct answer is Night blindness.​

• The deficiency of vitamin A causes night blindness.
• Night blindness, also known as nyctalopia, is a condition in which eyes are unable to adapt to low-light conditions.

• Vitamins are organic substances that are required in small quantities for normal health and growth in higher forms of animal life.
  • Fat-soluble vitamins are vitamin A, D, E and K
  • Fat-soluble means which are soluble in fat.

Vitamins	Deficiency Diseases	Source	Solubility
A (Retinol)	Night blindness	Green vegetables, guava, milk, nuts, tomatoes, oranges, carrots, broccoli, watermelon etc.	Fat
B1 (Thiamine)	Beri-Beri	potatoes, sweet potatoes, peas, corn, cashew nuts, wheat, milk, black beans, dates etc.	Water
B2 (Riboflavin)	Retarded growth, bad skin	Banana, dates, mushrooms, grapes, mangoes, peas, pumpkin, etc.	Water
B3 (Niacin)	Pellagra	Meat, fish, eggs, milk products, cereals, mushrooms, guava etc.	Water
B12 (Cyanocobalamin)	Anaemia	Meat, Fish, Milk, Cheese, eggs etc.	Water
C (Ascorbic acid)	Scurvy	Citrus fruits like lemon, orange etc.	Water
D (Calciferol)	Rickets	Fish, egg, liver, beef, etc.	Fat
E (Tocopherol)	Nerve and muscle damage	Potatoes, pumpkin, guava, mango, milk, nuts, seeds etc.	Fat
K (Phylloquinone)	Excessive bleeding due to injury	Tomatoes, chestnuts, cashew nuts, beef, lamb, mangoes, grapes etc.	Fat