Vitamin D deficiency: 5 Key symptoms you need to know

If you experience joint pain and muscle weakness even when you're not exercising, it may be a sign of low vitamin D levels. 

A frequent feeling of tiredness and lack of energy to do daily chores, accompanied by persistent feelings of exhaustion, can be due to inefficient levels of vitamin D. 

Vitamin D deficiency can weaken your hair follicles and is also linked to alopecia, an autoimmune disease that causes bald patches on the scalp.