Importance and Functions of Vitamin D Quiz

Sunlight is a primary source of vitamin D, as the skin produces it when exposed to UV-B radiation.

Vitamin D plays a crucial role in regulating the absorption of calcium and phosphorus in the body.

Bananas are not a good source of vitamin D; it is primarily obtained through sunlight exposure, supplements, or specific foods.

During winter, sunlight exposure is reduced, making it more challenging to obtain sufficient vitamin D naturally.

Polar regions are more prone to vitamin D deficiency due to limited sunlight exposure.

Vitamin D is transported in the bloodstream in the form of calcidiol.

Vitamin D plays a key role in calcium metabolism by increasing the absorption of calcium in the intestines.

The skin is the primary organ responsible for producing vitamin D when exposed to sunlight.

Vitamin D deficiency in children can lead to the development of rickets, a condition affecting bone development.

UV-B radiation is the type responsible for the synthesis of vitamin D in the skin.

The recommended daily intake of vitamin D for adults is 600 IU (International Units).

The scientific name for vitamin D is ergocalciferol.

The elderly population is at a higher risk of vitamin D deficiency due to factors like reduced skin synthesis and limited outdoor activities.

Excessive thirst is not a symptom of vitamin D deficiency; common symptoms include bone pain and muscle weakness.

Consuming too much vitamin D can result in hypercalcemia, an excess of calcium in the blood.

Parathyroid hormone regulates the production of active vitamin D in the kidneys.

The kidneys are the primary organs that convert inactive vitamin D into its active form.

Osteomalacia is the severe form of vitamin D deficiency in adults, leading to softening of the bones.

The process by which vitamin D is synthesized in the skin is called photosynthesis.

Obesity is a risk factor for vitamin D deficiency, as it may affect the bioavailability of vitamin D.

The maximum recommended daily intake of vitamin D for adults is 4000 IU to prevent toxicity.