In one study, 83 people with cardiovascular disease, including some with the genetic tendency gene, took 1.6 mg of vitamin B2 per day or a placebo.
Before the study, doctors measured blood pressure and found that those with the gene had higher systolic blood pressure and a tendency toward higher diastolic blood pressure as well.
After 16 weeks, those with the gene had significantly lower systolic and diastolic blood pressure, down 9.2 and 6.0 mmHg, respectively.
Doctors concluded that vitamin B2 is an exciting non-drug treatment for high blood pressure that, while doing no harm to those without the genetic tendency, could help lower blood pressure in those with the genetic tendency toward high blood pressure.