Hair Loss
Severe hair loss, such as that seen in alopecia areata, an autoimmune condition, can be exacerbated by vitamin D deficiency. A 2015 study carried out on 48 people indicated that topical application of a synthetic form of vitamin D for 12 weeks can significantly promote hair regrowth in affected individuals. This highlights the potential role of vitamin D in managing hair loss conditions. [8]
Muscle Pain
The exact cause of muscle pain can be difficult to pinpoint, but vitamin D deficiency is a known potential factor. The presence of vitamin D receptors in pain-sensing nerve cells suggests its involvement in pain signalling pathways. Research indicates that vitamin D supplementation may alleviate various types of pain in deficient individuals, underscoring its importance in pain management. [9]