There are many studies that show how Vitamin D deficiency is common in India and here's why Indian's should start taking Vitamin D and calcium supplements. One of the reasons for this could also be the use of sunscreens according to a study published in the Journal of the American Osteopathic Association. Researchers warned of this study warned that while sunscreens are known to protect against skin cancer they may be inadvertently making you deficient in Vitamin D causing muscle weakness and bone fractures. According to the study nearly one billion people worldwide may be having deficient or insufficient levels
