Objective: The objective of this study is to evaluate serum magnesium levels, dietary magnesium intake, and their relationships with hypertensive complications in adults with hypertension (HT).
Materials and Methods: Patients with HT for ≥10 years were divided into two groups for evaluation. Although the case group comprised 34 patients having at least one of the hypertensive complications of atherosclerosis, heart failure, and renal failure, the control group comprised 34 patients with HT without complications. In addition to demographic information, anthropometric measurements (body weight, height, waist circumference [WC]), and medical information of the patients were collected, dietary information was acquired via a three-day food record.
Results: Dietary magnesium intake was similar in both the groups; however, both values were below the recommended daily intake. The case group had significantly lower serum magnesium level than the control group. We found no correlations between serum magnesium and dietary magnesium intake level. Low serum magnesium level was a possible risk factor for complications (OR: 9.02, 95% CI: 3.00–27.10). Serum magnesium concentration was negatively correlated with the duration of HT, WC, fasting blood glucose; however, it positively correlated with the estimated glomerular filtration rate. Although the mean body mass index levels were similar, the mean WC was higher in the case group than in the control group.
Conclusion: In conclusion, this study’s results clearly showed insufficient dietary magnesium intake and lower serum magnesium levels in patients with hypertensive complications. Serum magnesium level was also found to be correlated with some parameters closely related to the complications of HT.