What is Vitamin D and why is it so important?

Frequent Infections

If you notice that you struggle with frequent urinary infections or with respiratory problems like the cold or the flu, then chances are your immune system might not be as strong as it should be. One reason for this could be a lack of vitamin D, which is found in high concentration in immune system cells and is needed for them to function. In one study, it was found that children who had high levels of this nutrient in their system had less chance of acquiring a cold or the flu.