The role of vitamin D in our body is of paramount importance, especially during the cold months when the number of sunny hours significantly decreases. The lack of vitamin D becomes a critical issue, particularly at the end of winter, as the body’s vitamin stores are depleted due to the absence of sunlight. This situation is particularly concerning among the Hungarian population, as many suffer from vitamin D deficiency, which can lead to numerous health problems. Vitamin D is essential for bone health, the proper functioning of the immune system, and the prevention of various diseases. Maintaining adequate levels of vitamin D is extremely important not only for adults but…