Researchers say they’ve identified the minimum level of vitamin D needed for good heart health.
Previous research has shown that vitamin D deficiency increases the risk of heart disease, heart attack and stroke, but the level of deficiency associated with such risk was unclear, the researchers said.
Having a vitamin D level anywhere above 15 nanograms per milliliter is fine for heart health, according to a team at the Intermountain Medical Center Heart Institute in Salt Lake City.
“Although vitamin D levels above 30 were traditionally considered to be normal, more recently, some researchers have proposed that anything above 15 was a safe level. But the numbers hadn’t been backed up with research until now,” lead researcher Dr. J. Brent Muhlestein, co-director of cardiovascular research, said in an institute news release.