When You Take Melatonin Every Day, This Is What Happens To Your Blood Pressure – Health Digest

There are two types of melatonin supplements. Immediate-release melatonin goes to work right away at resetting your body clock. Meanwhile, delayed release melatonin works a little more slowly and sustains your melatonin levels a little longer. A 2011 meta-analysis in Vascular Health and Risk Management found that immediate-release melatonin didn’t affect nighttime blood pressure. Controlled release melatonin reduced the nighttime systolic blood pressure by 6 millimeters of mercury (mmHg) and diastolic by 3.5 mmHg. Nighttime blood pressure is more closely associated with negative health effects, according to a 2023 article in the American Journal of Medicine. People with normal high blood pressure during the day could have high nighttime blood pressure.

Melatonin can also reduce temporary high blood pressure in healthy adults who eat a high-sodium diet, according to a 2023 article in the American Journal of Physiology. The study had people eat almost 7,000 milligrams of sodium each day for 10 days, and half of them took a 10-milligram melatonin supplement. Although the melatonin didn’t affect their 24-hour blood pressure, it reduced their nighttime blood pressure.