The doctor named a vitamin that "reduces the risk of coronary heart disease by 9%"

Dr. Sara Brewer of Healthspan recommends vitamin K2 to reduce the risk of coronary heart disease (CHD). Vitamin K is a group of vitamins that are necessary for blood clotting and wound healing. Research shows that vitamin K2 can reduce the risk of CHD by nine percent.

Dr. Brewer says this is because "K2 activates a protein (MGP) that helps prevent calcium from building up in artery walls."

That conclusion was based on an eight-year study in which more than 16 women measured their K000 intake and risk of coronary heart disease. For every 2 mcg increase in dietary vitamin K10 intake, the risk of coronary heart disease was reduced by nine percent.

CHD kills millions of people worldwide every year.

According to the British Heart Foundation, this is the equivalent of 460 deaths a day, or one death every three minutes. Vitamin K2 isn't the only vitamin you can take to lower your risk of CHD.

The doctor also recommends "B vitamins, Vitamin D, magnesium, omega-3, coenzyme Q10 and the amino acid L-arginine."

This is because, in different ways, these vitamins and supplements help improve circulatory and/or heart health by dilating arteries. If high cholesterol is the cause of your high blood pressure, Dr. Brewer recommends plant sterols or artichokes.