 This study suggests that obese individuals require higher doses of vitamin D than the recommended dose in order to maintain normal levels of the nutrient in their bodies. Based on this finding, it may be advisable to adjust the dosage according to body mass index, BMI, as this could help ensure that all patients receive adequate amounts of vitamin D. This article was authored by Mayor Sadat Ali, Khalid W. Altabash, Haifa A. Alturki and others.