Magnesium helps lower blood pressure, according to a study from Indiana University and Stanford University in California. The researchers pooled data on 2,028 people from 34 clinical trials on magnesium supplementation. The daily dosage of magnesium from supplements ranged from 240 to 960 milligrams. Results showed that when compared to blood pressure, people who consumed ample magnesium had reductions in blood pressure. People who supplemented with an average of 368 milligrams a day of magnesium for at least three months showed a 2.00mm/Hg reduction in systolic blood pressure and a 1.78mm/Hg reduction in diastolic blood pressure. Higher magnesium levels also were associated with improved blood flow, a factor linked to lower blood pressure.
In Perspective: The researchers warn that their findings that magnesium lowers blood pressure might only apply to people who are low in the mineral. However, numerous studies have found that up to three out of every four Americans do not consume diets that contain adequate magnesium. Granted, you always should turn to food first, but for the potentially vast percentage of Americans, it might be wise to supplement.
Zhang X, Li Y, Del Gobbo L, et al: Effects of magnesium supplementation on blood pressure. Hypertension 2016; July 11th.