 This study investigated the possible association between serum calcium levels and systolic and diastolic blood pressure in a group of type 2 diabetic T2D patients. The results showed that there was a significant inverse correlation between serum calcium levels and diastolic blood pressure, but not systolic blood pressure. This suggests that higher serum calcium levels may be associated with lower diastolic blood pressure in T2D patients. This article was authored by Saeed Baratmanesh and Hamid Nasri.