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Intermittent Fasting Linked to High Risk of Cardiovascular Death: AHA Research

Cardiovascular Death
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A research of nearly 20,000 adults found that those who followed an 8-hour time-restricted eating regimen, sometimes known as intermittent fasting, had a 91% higher chance of dying from cardiovascular disease. People with heart disease or cancer had a higher risk of cardiovascular death. Compared to a usual eating pattern of 12-16 hours per day, restricting food intake to less than 8 hours per day was not connected with a longer lifespan.

An analysis of over 20,000 U.S. adults found that people who limited their eating to less than 8 hours per day were more likely to die from cardiovascular disease compared to those who ate for 12-16 hours per day, according to preliminary research presented at the American Heart Association’s Epidemiology and Prevention Lifestyle and Cardiometabolic Scientific Sessions 2024, March 18-21 in Chicago. The symposium will cover the most recent scientific findings on population-based health and wellness, as well as their implications for lifestyle.

Time-restricted eating, a sort of intermittent fasting, entails limiting eating hours to a set number of hours each day, which can range from four to twelve hours out of twenty-four. According to the researchers, many people who follow a time-restricted eating regimen adhere to a 16:8 eating plan, which involves consuming all of their foods in an 8-hour window and fasting for the remaining 16 hours of the day. Previous study has shown that time-restricted eating improves numerous cardiometabolic health metrics, including blood pressure, blood glucose, and cholesterol levels.

“Restricting daily eating time to a short period, such as 8 hours per day, has gained popularity in recent years as a way to lose weight and improve heart health,” said senior study author Victor Wenze Zhong, Ph.D., a professor and chair of the department of epidemiology and biostatistics at the Shanghai Jiao Tong University School of Medicine in Shanghai, China. “However, the long-term health effects of time-restricted eating, including risk of death from any cause or cardiovascular disease, are unknown.”

In this study, researchers looked into the long-term health effects of adopting an 8-hour time-restricted eating regimen. They compared dietary patterns among participants in the annual 2003-2018 National Health and Nutrition Examination Surveys (NHANES) to data from the Centers for Disease Control and Prevention’s National Death Index database, which covered the period from 2003 to December 2019.

The study indicated that those who consumed all of their food in less than 8 hours per day had a 91% higher risk of dying from cardiovascular disease.

• People with heart disease or cancer had a higher risk of cardiovascular death.
• Among people with pre-existing cardiovascular disease, eating for at least 8 but not more than 10 hours per day was related with a 66% increased risk of mortality from heart disease or stroke.
• Time-restricted eating did not lower the risk of death from any cause.
• Eating for more than 16 hours each day was connected with a lower risk of cancer mortality among cancer patients.

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