Does Intermittent Fasting Increase the Risk of Cardiovascular Death?

A preliminary report of a new study suggests that fasting for 16 hours with an eight hour eating window may cause more harm than good.
Does Intermittent Fasting Increase the Risk of Cardiovascular Death?
A study found that 16:8 intermittent fasting was associated with an increased risk of cardiovascular death. Melinda Nagy/Shutterstock
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Intermittent fasting has become a popular weight-loss method in recent years. However, a study of more than 20,000 Americans found that individuals who restricted eating to within an eight-hour window had a 91 percent higher risk of death from cardiovascular disease.

On March 18, the preliminary report of this study was presented at a meeting held by the American Heart Association, but it has not yet been published in a peer-reviewed academic journal.