Is " Vitamin D" Deficiency a major global public healthy problem?

 Vitamin D deficiency is considered a major global public health problem affecting all age groups, with a high prevalence that contributes to the global burden of disease. It is a concern even in sunny countries and is linked to bone health issues like osteomalacia, as well as other health problems such as increased risk for infectious diseases, and cardiovascular, metabolic, and autoimmune diseases.