A study conducted in Ireland involving 4,000 elderly people found that people with vitamin D deficiency have a 75% higher risk of depression. This suggests that vitamin D directly affects brain function, which may be associated with more serious neurological problems such as Parkinson's disease and dementia.

Lead researcher Dr. Robert Briggs believes that the findings could have a significant impact on health policy, in particular, lead to increased use of vitamin D supplements to prevent depression.

Vitamin D deficiency negatively affects not only the elderly. Another study showed that young women with low vitamin D levels have increased symptoms of depression, which manifest themselves in the form of constant negative thoughts.

The results of the study showed that vitamin D is very important for mental health. These findings highlight the importance of regular monitoring of vitamin D levels as part of routine checkups. Taking supplements can be an easy and effective way to reduce the risk of depression in people of all ages.

The authors of the study call for a review of the role of vitamin D in public health programs, especially in regions with limited access to sunlight, which is its main source.