Essential hypertension is associated with disturbed calcium metabolism. Calcium is the fifth most abundant element in the human body. 172 Patients (84 Male and 88 Female) and 242 healthy controls (136 Male and 106 Females) were included in the study and 3 ml of fasting blood sample was collected from patients and controls. A P–value less than 0.05 were considered statistically significant. The present study shows significantly reduced serum total calcium and albumin levels in hypertensives. While the serum ionized calcium levels are comparable in both groups as there is no significant difference. To conclude that lowered serum ionized calcium can accelerate the hypertension and aging process which may be improved by calcium supplementation.