“…It should be highlighted that, in terms of everyday practice, the selection of adequate recommendation from a variety of available vitamin D supplementation guidelines depends on several factors, including clinical and environmental (15,79). Moreover, the differences related to latitude of residence, sunlight exposure, skin pigmentation, dietary practices, clothing and cultural habits, health care system, and many other population-specific factors, needs to be considered in making uniform guidelines (45,53,58,73,(76)(77)(78).…”