Consider the following statements with regard to Vitamin D deficiency : 1. Vitamin D deficiency is common in northern latitudes. 2. Vitamin D deficiency is more likely to develop in people with dark skin. 3. Exposure to UV light is advisable in patients with Vitamin D deficiency. Which of the statements given above are correct?
Analyzing Vitamin D Deficiency Statements
This question requires evaluating three statements about Vitamin D deficiency to determine which are correct.
Statement 1: Latitude and Vitamin D Deficiency
Statement: Vitamin D deficiency is common in northern latitudes.
Analysis: This statement is correct. Northern latitudes receive less intense sunlight, especially during winter months. Since sunlight exposure is a primary source for Vitamin D synthesis in the skin, lower sunlight intensity and duration lead to a higher prevalence of Vitamin D deficiency in these regions.
Statement 2: Skin Tone and Vitamin D Deficiency
Statement: Vitamin D deficiency is more likely to develop in people with dark skin.
Analysis: This statement is correct. Melanin, the pigment that darkens the skin, reduces the skin's ability to produce Vitamin D in response to UV radiation. Individuals with darker skin pigmentation require more sun exposure than those with lighter skin to produce the same amount of Vitamin D, making them more susceptible to deficiency.
Statement 3: UV Light and Vitamin D Deficiency
Statement: Exposure to UV light is advisable in patients with Vitamin D deficiency.
Analysis: This statement is correct. Ultraviolet B (UVB) radiation from sunlight is essential for stimulating the skin to produce Vitamin D. Therefore, controlled exposure to UV light (primarily sunlight) is a recommended strategy, alongside dietary sources and supplements, to help correct Vitamin D deficiency. However, this should be balanced with risks of skin damage.
Conclusion
All three statements (1, 2, and 3) accurately describe aspects related to Vitamin D deficiency.
Therefore, the correct option includes statements 1, 2, and 3.
Important Questions from Vitamin D Deficiency
Which of the following abnormalities occur from vitamin D deficiency in children?
1. Craniotabes
2. Bossing of frontal and parietal bones
3. Muscle hypotonia
4. Shrinking of epiphysis at the lower end of radius
Select the correct answer using the code given below.
- Which one of the following is not a feature of vitamin D deficiency rickets?
- Which one of the following is not characteristic of Vitamin-D resistant rickets ?
- What is the naturally occurring form of vitamin D in the human skin ?
