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Vitamin D Deficiency and How to Address It

You&I Skin Clinic Wangsimni · 11년 차 피부과 전문의 - 강부경 대표원장 · January 9, 2025

Vitamin D Deficiency and How to Address It Vitamin D plays a very important role in our body. In particular, it is essential for strengthening the immune system and maintaining bon...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: You&I Skin Clinic Wangsimni

Original post date: January 9, 2025

Translated at: April 20, 2026 at 5:34 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

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Vitamin D plays a very important role in our body. In particular, it is essential for strengthening the immune system and maintaining bone health. But did you know that a significant number of modern people are deficient in vitamin D? In this article, we will look at the causes of vitamin D deficiency and the solutions that can help address it.

First, let’s look at the causes of vitamin D deficiency. Vitamin D is mainly produced through sunlight. However, as people spend more time indoors and a culture of avoiding sunlight has spread, many cases of insufficient vitamin D production occur. In particular, in urban environments, the air is often polluted and buildings block sunlight, making it difficult to obtain vitamin D naturally. In addition, if you do not consume enough foods rich in vitamin D in your diet, you can become deficient. In such cases, it is important to include foods for vitamin D supplementation.

Next, let’s look at the effects of vitamin D deficiency on health. When vitamin D is deficient, immunity can decline, making you more vulnerable to infectious diseases, and in severe cases, osteoporosis or rickets, which weaken the bones, can occur. It can also affect mental health conditions such as depression. For these reasons, adequate intake of vitamin D is very important.

So, how can vitamin D deficiency be prevented and addressed? The first method is sufficient exposure to sunlight. It is recommended to spend about 20 minutes a day in direct sunlight. However, prolonged exposure can instead be harmful to the skin, so it is important to keep the time appropriate. The second method is to obtain vitamin D through food. Salmon, mackerel, and egg yolks are foods rich in vitamin D. Including these foods in your diet can help. Lastly, vitamin D supplements can help prevent deficiency. In particular, for pregnant women and older adults, supplements may be effective, so it is best to consult a medical professional and receive an appropriate prescription.

In conclusion, vitamin D is an essential nutrient for maintaining health, and deficiency can occur due to changes in the natural environment and the lifestyle habits of modern people. Please make an effort to prevent vitamin D deficiency and maintain a healthy life through sufficient sunlight exposure and dietary management.