Popular 16:8 Intermittent Fasting Method Linked To Increased Heart Disease Risk In New Study: Reports

A new study presented at the EPI|Lifestyle Scientific Sessions here this week has thrown a curveball at the popularity of 16:8 intermittent fasting, suggesting a possible link between this dietary approach and an increased risk of cardiovascular disease and death, according to reports.

The research, which has not yet been published in a peer-reviewed journal, examined data from over 20,000 adults who participated in the National Health and Nutrition Examination Surveys (NHANES) over a span of several years. The study found that those who followed the 16:8 method, where eating is restricted to an 8-hour window each day, had a 91% higher mortality rate from cardiovascular disease compared to non-fasters.

The research, which has not yet been published in a peer-reviewed journal, examined data from over 20,000 adults who participated in the National Health and Nutrition Examination Surveys (NHANES) over a span of several years. The study found that those who followed the 16:8 method, where eating is restricted to an 8-hour window each day, had a 91% higher mortality rate from cardiovascular disease compared to non-fasters.

Furthermore, the study revealed that individuals with existing heart disease who practiced 16:8 fasting faced a 66% greater risk of dying from heart disease or stroke.

While the findings are intriguing, experts caution against drawing definitive conclusions due to the study's limitations. The reliance on self-reported dietary data, which can be inaccurate, and the observational nature of the study, which can't establish cause and effect, are key factors to consider. Additionally, some experts point out potential baseline characteristic differences between the fasting and non-fasting groups that could have skewed the results.

"This study is a great example of how short-term outcomes don't always predict the long-term impact," said Dr. Avantika Waring, chief medical officer at cardiometabolic care telemedicine company 9amHealth, who was not involved in the research. "It may be that intermittent fasting helps with weight loss in the short term but doesn't translate to lasting cardiovascular benefits."

Despite the limitations, researchers believe this is a significant area for further investigation. There's a scarcity of long-term human studies on intermittent fasting, and research like this is crucial to understanding its impact on health.

"The best dietary recommendation is one that you can stick with in the long run," advised Maggie Evans, a registered dietitian and manager of nutrition programs at 9amHealth. "Individual medical history, health goals, and lifestyle factors all influence what dietary pattern works best for you."

Experts emphasize the need for further research on intermittent fasting to deepen our understanding of its effects on health. They suggest that the decision to try intermittent fasting should be based on individual health goals and advice from a healthcare professional. Ultimately, the best dietary approach is one that is sustainable and tailored to an individual's needs and health status.