Vitamin D3 – boost your immune system without sun exposure
It is a unique vitamin that most people don’t get enough of. In fact, it’s estimated that more than 40% of European adults have a vitamin D deficiency.
Best immune System protector
The ‘sunshine’ vitamin is mainly found in salmon, sardines, milk, dairy products, cod liver oil, and eggs.
It can be produced in the body, only if the skin is exposed to the ultraviolet radiation (UVB).
It can be produced in the body, only if the skin is exposed to the ultraviolet radiation (UVB). Therefore, a little sun exposure is essential for synthesizing the vitamin in the skin.
Vitamin D is crucial for the activation of immune system defenses as it has both anti-inflammatory and immunoregulatory properties.
In fact, the vitamin is so important for immune function that low levels of vitamin have been associated with increased susceptibility to: infections, respiratory diseases, including tuberculosis, asthma, and chronic obstructive pulmonary disease (COPD), as well as viral and bacterial respiratory infections, and immune-related disorders (trusted source).
It plays an important role in various processes in metabolism, especially in bone metabolism, acting as a pro-hormone, acting in the constitution of healthy bones, teeth and, consequently, in adequate growth.
Vitamin D Deficiency
This vitamin is one of the most important nutrients for the body’s health. It helps with the absorption of calcium, thus making the bone and tooth structure more resistant and stronger.
Muscle weakness and excessive tiredness are just some of the symptoms of lack of vitamin D.
Vitamin D deficiency has been linked to decreased lung function, which may affect your body’s ability to fight respiratory infections.
Deficiency Can Be Caused by the lack of Sun
The main cause of vitamin’s deficiency is lack of frequent or proper sun exposure (winters, longer rainy periods, etc.). 
This vitamin is made from cholesterol in your skin when it’s exposed to the sun. That’s why getting enough sunlight is very important for maintaining optimal vitamin D levels.
According to the recommendations of the Society for Endocrinology, less than 5% of adults are optimally supplied with vitamin D, between November and April. Therefore, it is essential to supplement Vitamin D, especially during wintertime.
To address the low amounts of vitamin in the body, the most efficient solution would be adequate exposure to sunlight or supplementing Vitamin D3 in form of food ? supplements.
