Melatonin
Melatonin is a hormone produced by the body that can be taken as supplement. Although these supplements are majorly used to enhance sleep, they also help with other health benefits.
For instance, studies reveal that melatonin [6] supplements may lower blood pressure in people with high levels.
A review of 5 studies revealed that melatonin supplements cause great reductions in blood pressure, compared with control groups.
Another study revealed that low levels of melatonin could be a risk factor for high blood pressure in women.
Ginger
Studies have shown that consuming high amount of ginger can help reduce blood pressure.
6 studies were reviewed and it was discovered that when consumed in doses of 3 grams or more per day for 8 weeks or less, ginger supplements greatly lowered blood pressure in people 50 years old and younger.
37 people with metabolic syndrome (several conditions that increase heart disease risk) were studied for 12 weeks. They took 2 grams of ginger powder every day and they experienced reduction in the blood pressure, triglyceride and fasting blood sugar, compared with placebo.