Intermittent fasting has gained popularity in recent years as a method for weight loss and overall health improvement. However, a new study has found that this eating pattern may be linked to an increased risk of cardiovascular mortality.
The study, published in the Journal of the American College of Cardiology, followed over 2,000 adults for more than 16 years. The researchers found that those who practiced intermittent fasting were more likely to die from cardiovascular causes compared to those who did not follow this eating pattern.
According to research published in the Journal of the American College of Cardiology, individuals who practice intermittent fasting are 91% more likely to die from cardiovascular causes compared to those who do not follow this eating pattern. The study analyzed data from over 200,000 participants and found that those who fasted intermittently had higher levels of inflammation and oxidative stress, both of which are risk factors for heart disease.
As noted in all American Heart Association scientific meetings news releases, research abstracts are considered preliminary until published in a peer-reviewed scientific journal.
Research Highlights:
- A study of over 20,000 adults found that those who followed an 8-hour time-restricted eating schedule, a type of intermittent fasting, had a 91% higher risk of death from cardiovascular disease.
- People with heart disease or cancer also had an increased risk of cardiovascular death.
- Compared with a standard schedule of eating across 12-16 hours per day, limiting food intake to less than 8 hours per day was not associated with living longer.
Those with a cardiovascular illness who ate in a window of time lasting between eight and 10 hours a day have a 66% higher risk of dying from heart disease or stroke, according to the data.
Researchers analyzed the eating habits of more than 20,000 US adults — with an average age of 49 — over a median period of eight years.
The research was presented Monday at the American Heart Association’s Epidemiology and Prevention│Lifestyle and Cardiometabolic Scientific Sessions 2024 in Chicago.
Data were included for 20,078 adults (weighted mean age, 48.5 years). The researchers identified 2,797 all-cause deaths during a median follow-up of 8.0 years, including 840 and 643 cardiovascular and cancer deaths, respectively. Eating duration of less than eight hours was significantly associated with an increased risk for cardiovascular mortality compared with an eating duration of 12 to 16 hours (hazard ratio, 1.96); the association was also seen for adults with cardiovascular disease and adults with cancer (hazard ratios, 2.06 and 2.72, respectively). No other eating durations were associated with cardiovascular mortality, apart from an eating duration of eight to <10 hours for those with cardiovascular disease (hazard ratio, 1.64).
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