Although the warm weather is slowly creeping closer, we are still in the winter season and thus our need for supplemental vitamin D continues. The benefits of vitamin D are far-reaching to the point that that it is oftentimes considered more of a hormone vs. a vitamin. Vitamin D plays a crucial role in many bodily functions and not just limited to, traditionally thought of, bone health. However, bone health is a vital benefit of vitamin D assisting with calcium absorption, thus building and maintaining strong bones.

One of the most significant benefits, especially those who have a hereditary predisposition for any type of autoimmune disease, is a reduced onset of various autoimmune diseases. Research has shown that maintaining consistently adequate levels of vitamin D in the body reduces the risk of onset of autoimmune diseases by up to 33%. This includes conditions such as multiple sclerosis, lupus, rheumatoid arthritis, Crohn’s disease, Celiac disease, and psoriasis.

Additional benefits include:

Respiratory health: maintaining adequate levels of vitamin D have been proven to reduce the onset and severity of respiratory infections.

Diabetes prevention: vitamin D helps to improve insulin sensitivity and thus reduce the risk of Type 2 diabetes.

Cardiovascular health: research studies show that vitamin D plays a key role in regulating blood pressure and reducing the risk of cardiovascular disease. 

Immune function: vitamin D helps stimulate and enhances the function of immune cells; and also helps to suppress systemic inflammation which is a precursor to chronic disease formation.

Mental health: some studies have identified a link between vitamin D levels and regulation of mood, including reducing symptoms of depression.

Unfortunately, relatively few foods naturally contain high levels of vitamin D and thus very difficult to obtain adequate amounts of daily vitamin D through diet alone. Most of our vitamin D production comes from our skin in response to sun exposure.  This is easiest accomplished in warmer climates throughout the year. However, in northern climates, this is best accomplished between the months of May and August with a good portion of our skin exposed without sunblock for about 30 minutes.  Maintaining a tan throughout the summer months helps to ensure ample amounts of vitamin D production within our own bodies. If this is not possible, vitamin D supplementation is necessary. Most people require 3000 – 5000 IU/day of this "miracle nutrient."  It is always best to consult with a healthcare professional prior to starting any new supplement regimen.