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

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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

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