Vitamin D deficiency can lead to heart problems
A new study shows what level of Vitamin D deficiency puts someone at risk of developing these heart problems.
Researchers at the Intermountain Medical Center Heart Institute in Salt Lake City have found that patients are fine from a heart standpoint, and may need no further treatment, if their vitamin D level is anywhere above 15 nanograms per milliliter.
“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,” said J. Brent Muhlestein, MD, co-director of cardiovascular research at the Intermountain Medical Center Heart Institute, and lead researcher of the study.
“Even if any level above 15 is safe, one out of 10 people still have vitamin D levels lower than that. This equates to a very large percentage of our population. The best way to determine one’s vitamin D level is by getting a blood test,” he said.
Dr. Muhlestein and his team presented their findings from the study at the 2015 American Heart Association Scientific Session in Orlando on Monday.
The body naturally produces vitamin D as a result of exposure to the sun, and it’s also found in a few foods — including fish, fish liver oils, and egg yolks as well as some dairy and grain products.
Dr. Muhlestein and his team have studied the effects of vitamin D on the heart for several years, looking at smaller numbers of patients. In this study, thanks to Intermountain Healthcare’s vast clinical database, they were able to evaluate the impact of vitamin D levels on more than 230,000 patients.
The 230,000 patients were split up into four groups (<15 ng/ml, 15-29, 30-44, ≥45) and were followed for the next three years by researchers who looked for major adverse cardiac events, including death, coronary artery disease, heart attacks, stroke, and incidents of heart or kidney failure.
Dr. Muhlestein found that for the nine percent of patients in the less than 15 group, their risk of cardiovascular events increased by 35 percent compared to the other three groups, and the risks faced by the other three groups weren’t very different from each other.
“This study sheds new light and direction on which patients might best benefit from taking vitamin D supplements,” said Dr. Muhlestein. “Even though there’s a possibility that patients may benefit in some way from achieving higher blood levels of vitamin D, this new information tells us the greatest benefit to the heart will likely occur among patients whose vitamin D level is below 15 ng/ml.”
Category: Features, Health alert
