Vitamin D, often called the “sunshine vitamin,” is vital to overall health and well-being. According to the National Institutes of Health Office of Dietary Supplements (NIH ODS), this unique fat-soluble vitamin is both a nutrient and a hormone, and our bodies can produce it when our skin is exposed to sunlight. While the recommended daily value of vitamin D varies based on age and life stage, a general guideline for adults is around 600 to 800 international units (IU) daily.
Vitamin D is essential for calcium absorption, which helps maintain strong and healthy bones. Adequate levels of vitamin D are also linked to a well-functioning immune system, helping to defend against infections, and reducing the risk of illnesses. A 2016 study published in the Journal of Affective Disorders showed that sufficient vitamin D levels can reduce the risk of depression.
Evidence suggests a link between sufficient levels of Vitamin D and a lower risk of certain cancers, including breast, lung, and colon cancer (via the National Cancer Institute). It may also play a role in preventing and managing diseases like multiple sclerosis and rheumatoid arthritis. In addition, a 2021 study published in the British Medical Journal showed vitamin D supplementation reduced autoimmune disease by 22%.
