Vitamin D, crucial for immune function, is linked to respiratory tract infections, viral diseases and illness.
Vitamin D deficiency may cause fatigue, with studies linking it to poor sleep quality, delayed bedtimes, and increased fatigue in older adults, children, and female nurses.
Vitamin D deficiency is linked to anxiety and depression in older adults, with mixed results. Supplements have been found to help relieve depression symptoms in reviews.
Low vitamin D levels can cause slow wound healing after surgery or injury, potentially due to increased production of inflammatory compounds and a lack of vitamin D, which can also affect infection control.
Vitamin D is essential for calcium absorption and bone metabolism, reducing fracture risk in older adults.
Obesity increases risk for vitamin D deficiency, with low status linked to belly fat and weight gain, particularly in males.
Research links low vitamin D levels to autoimmune disease alopecia areata, indicating that higher vitamin D levels may reduce non-scarring hair loss.
(This web story is meant for informational purposes only and must not be considered a substitute for advice provided by qualified medical professionals.)