The photo has been used for illustrative purposes. TNS
Vitamin supplements, a multi-billion-dollar industry, are a layperson’s favorite prescription. Tired? Take an iron supplement. Sad? Classic vitamin D deficiency. But a recent paper related to cardiovascular health, published in Annals of Internal Medicine, put this loyalty to the test. Surprise, surprise: vitamin supplements had little impact on heart conditions, including heart disease, and lifespan as a whole. According to Dr. Erin D. Michos, associate professor of medicine in cardiology at Johns Hopkins School of Medicine and one of the paper’s co-authors, the paper was catalyzed in part by the growing popularity of the supplement industry.
“An estimated 1 out of 2 Americans are taking some kind of supplement or vitamin,” Michos said. “For the vast majority of vitamins, we did not find any benefit, either in reduction in death or cardiovascular health.”
While vitamin devotees might feel betrayed, medical professionals are less surprised. The paper reviewed collective evidence from separate randomized clinical trials to analyze the benefit of dietary intervention and supplementation in cardiovascular conditions. Dr. Jeffrey Linder, chief of internal medicine and geriatrics at Northwestern Medicine, wasn’t surprised by the results, which corroborated and combined years of prior research while putting a spotlight on cardiovascular health.
“This new study confirms what we’ve been thinking all along: that there are very few, if any, supplements or vitamins that people should take as long as you’re eating a healthy diet,” Linder said. “Every time scientists have compared taking a supplement of something versus getting it through food, getting it through food wins every time.” Food, Linder said, contains both minerals and vitamins that the body is “built and designed to absorb.”
“It can be hard to convince people if they feel pretty good and feel like what they’ve been doing is healthy,” Linder said. “I get their resistance, and the idea that this new study is going to make everybody drop their supplements is unrealistic too.”
Still, if patients are willing to listen, there are ways they can still feel in control of their heart health. Though the paper found little evidence that specific diets are beneficial (though reduced salt intake showed some benefit), Michos said that this doesn’t mean heart-healthy diets are ineffective, as diet research is mostly observational studies.
“In my mind, if it’s not harmful, it’s a waste of money,” Doukky said.
Tribune News Service
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