Why we need to supplement with Vitamin D?

Why we need to supplement with Vitamin D?

Vitamin D is an essential nutrient that plays a crucial role in maintaining overall health. It is often referred to as the "sunshine vitamin" because our bodies can produce it when our skin is exposed to sunlight. However, many people do not get enough sun exposure or have other factors that can affect their ability to produce Vitamin D. In such cases, taking Vitamin D supplements becomes necessary to ensure optimal health.

What is Vitamin D and why is it important?

Vitamin D is a fat-soluble vitamin that helps regulate the absorption of calcium and phosphorus in our bodies. It is essential for maintaining strong bones and teeth, as well as supporting the immune system and promoting overall well-being. Vitamin D also plays a role in reducing inflammation and supporting cardiovascular health.

How does Vitamin D deficiency occur?

Vitamin D deficiency can occur due to various reasons. One of the primary causes is inadequate sun exposure. People who live in regions with limited sunlight, spend most of their time indoors, or cover their skin for cultural or religious reasons are at a higher risk of deficiency. Additionally, individuals with darker skin have higher levels of melanin, which can reduce the production of Vitamin D in the skin.

Who is at risk of Vitamin D deficiency?

Several factors can increase the risk of Vitamin D deficiency. These include:

  • Elderly individuals: As we age, our skin becomes less efficient at producing Vitamin D.
  • People with limited sun exposure: Those who work indoors, live in northern latitudes, or have a lifestyle that restricts outdoor activities.
  • Individuals with darker skin: Higher levels of melanin reduce the skin's ability to produce Vitamin D.
  • Obese individuals: Vitamin D is stored in fat cells, which can make it less available for use by the body.
  • People with certain medical conditions: Certain medical conditions, such as Crohn's disease, celiac disease, and kidney disorders, can impair the absorption or metabolism of Vitamin D.

What are the benefits of taking Vitamin D supplements?

Taking Vitamin D supplements may help prevent and treat Vitamin D deficiency. Adequate levels of Vitamin D have been associated with numerous health benefits, including the support of:

  • Stronger bones and teeth: Vitamin D helps the body absorb calcium and phosphorus, which are essential for maintaining healthy bones and teeth.
  • Improved immune function: Vitamin D plays a crucial role in supporting the immune system and reducing the risk of infections.
  • Reduced risk of chronic diseases: Adequate Vitamin D levels have been linked to a lower risk of conditions such as heart disease, diabetes, and certain types of cancer.
  • Enhanced mood and mental health: Vitamin D may play a role in regulating mood and reducing the risk of depression and other mental health disorders.

How much Vitamin D should one take?

The recommended daily intake of Vitamin D varies depending on age, sex, and individual needs.  However, individuals with known deficiencies or specific medical conditions may require higher doses under the guidance of a healthcare professional.  Always consult your GP.  


Vitamin D is a vital nutrient that plays a crucial role in maintaining overall health. While sunlight is the best natural source of Vitamin D, many people may need to take supplements to ensure adequate levels. If you suspect you have a Vitamin D deficiency or are at risk, consult with our wellness consultants who can guide you on the appropriate dosage and supplementation.


Recent Irish Times Article - Experts advise to continue taking Vitamin D - https://www.irishtimes.com/health/2024/01/10/vitamin-d-supplements-advised-for-adults-and-children-in-winter-department-of-health/