Question

List the sources, functions, and the deficiency disease of vitamin A.

Answer 1

Answer: Functions

Vitamin A is a blessing for us as it provides a wide range of benefits. It is quintessential in maintaining healthy functions of our body. It strengthens our immune system, helps in treating eye problems and supports cell growth and development. Vitamin A is mainly used for our eye health by improving our vision and treating night blindness, a condition where eyes are unable to perceive anything under dim or poor light.

Vegetables which have a high content of Vitamin A mostly in the form of carotenoids are:

Spinach, turnip, broccoli, lettuce, parsley, kale and other leafy green veggies.

Carrot, tomatoes, sweet potato, pumpkin, squash, zucchini, red pepper and other orange and yellow coloured vegetables.

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Answer 2

• Sources:

The top food sources of vitamin A diet include dairy products, liver, fish, and fortified cereals; the top sources of provitamin A include carrots, broccoli, cantaloupe, and squash.

• Functions:

Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucus membranes, and skin. It is also known as retinol because it produces the pigments in the retina of the eye. Vitamin A promotes good eyesight, especially in low light.

• Deficiency:

Vitamin A deficiency can cause blindness. It can also increase the risk of serious, sometimes fatal, infections. Symptoms include night blindness, dry skin and frequent infections.