Summary
This review, conducted by several Canadian and British research institutes, gives an overview of the beneficial effects of vitamin D on the regulation of immune function. Vitamin D showed, among others, a beneficial interaction with multiple processes executed by the immune system and several effects on immune cells. Moreover, vitamin D deficiency at a young age could predispose to immunological diseases and a malfunctioning immune system. Several studies showed that vitamin D supplementation could be a beneficial strategy for improving health, for instance, preventing bacterial and viral infections and decreasing the severity of these diseases. More details can be found in the review.
References
Bishop et al.