Vitamin D is „caused” by sunlight in the human skin and after some transformation in the liver and kidneys, it is involved in almost all vital life processes. Vitamin D deficiency leads to chronic illnesses.

According to estimates, 1 billion people suffer from vitamin D deficiency in the world, 40-75% of whom are adults. This is because we get less and less sunlight (not only in winter but also in the summer), but the primary source of vitamin D is sunlight, to be more precise: its UV-B spectrum.

Common diseases caused by vitamin D deficiency

Heart disease

People who suffer from vitamin D deficiency have a 32% higher risk of heart disease than those who have enough in their body. Vitamin D reduces inflammatory diseases and supports our immune system and reduces cardiovascular disease.

Inflammatory intestine diseases

Studies in Europe and the United States have identified the link between vitamin D deficiency and inflammatory intestine diseases. Based on the researches, where the population lives more in natural sunlight, fewer people with intestinal diseases are present.

Alzheimer's disease

Those adults who have vitamin D deficiency are at risk of having 53% more dementia. Vitamin D deficiency, if accompanied by other nutrient deficiencies, increases the risk of Alzheimer's disease to 122%.

Kidney Disease

A study has shown a 5-year period that those with lower levels of vitamin D have twice the likelihood of having kidney disease.


Vitamin D is significantly associated with osteoporosis as it helps to absorb calcium and phosphate from the diet. These help keep the health and strength of our bones and teeth. Vitamin D deficiency weakens the bones which can cause bone fractures.

Type 2 diabetes

According to a study, adequate vitamin D levels reduce the risk of type 2 diabetes.

Erectile dysfunction

The most common sexual problem among men can be also caused by other disorders, such as diabetes or prostate cancer. Last year, the Journal of Sexual Medicine published a study stating that severe vitamin D deficiency could also cause severe erectile dysfunction.

How to get more vitamin D?

  1. The best and cheapest way to get vitamin D is sunshine.
  2. It is less good but in the absence of sunshine it is a great alternative to use quartz lamp (as solarium UV-A is not suitable for vitamin D3 production).
  3. If all the above are out of reach, there is nothing else to do but following bears, sea pigs or the Eskimos. Eat vitamin D. Salmon or tuna are good vitamin D sources.
  4. If regular fish consumption is not possible, we still have vitamin D capsules. They can be conveniently dispensed and stored and always are at hand.

+ 1 tip: Get outside and move your body on a regular basis, it also helps with vitamin D production!