The study, conducted by researchers from the Shanghai Jiao Tong University School of Medicine in China, analyzed data from approximately 20,000 adults in the US. Participants were asked to recall their dietary habits over a 24-hour period and were followed for a median length of eight to a maximum of 17 years.
The findings revealed that individuals who followed an 8-hour time-restricted eating schedule, a form of intermittent fasting, had a 91% higher risk of death from cardiovascular disease compared to those with regular eating patterns. The study’s lead author, Victor Zhong, emphasized that the results are preliminary and not yet peer-reviewed or published.
As told to TOI, Dr. Ashok Seth, chairman of Fortis Escorts Heart Institute, noted that while there are numerous studies on the short-term effects of intermittent fasting, this study is among the first to assess its long-term impact. He cautioned that the study’s reliance on self-reported dietary information may introduce biases and inaccuracies.
The study also revealed that the fasting patients were more likely to be younger men with a higher body mass index (BMI) and food insecurity. They also had a lower prevalence of hypertension, diabetes, and cardiovascular disease based on self-reports. Despite these findings, the positive association between 8-hour time-restricted eating and cardiovascular mortality remained even after controlling for these variables.
The findings have sparked debate among experts, with some questioning the study’s methodology and suggesting that differences in underlying health conditions between fasting individuals and the comparison group may have influenced the results. Despite these limitations, the study underscores the need for further research on the safety and efficacy of intermittent fasting as a weight-loss strategy.In conclusion, while intermittent fasting may offer short-term benefits for weight loss, this study suggests that it may also pose long-term risks to cardiovascular health. As with any dietary approach, it is essential to consider individual health factors and consult with healthcare professionals before making significant changes to one’s eating habits.
(With inputs from TOI)
