A Potential Draw back of Intermittent Fasting

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A Potential Downside of Intermittent Fasting

For example, studies have shown that obese adults lose more weight and improve their cardiovascular risk factors more when they eat a large breakfast, modest lunch, and light dinner than when they eat a small breakfast and a large dinner.

"It could be that the benefits of time-limited eating are less than you thought, or just getting better results by eating earlier in the day," said Courtney Peterson, an intermittent researcher at the University of Alabama, Birmingham Fasting and who wasn't involved in the new study. "The jury is still not there."

Many cultures around the world practice fasting for religious or spiritual reasons. However, fasting became popular for health reasons after small studies indicated that it promoted longevity and a variety of metabolic benefits, such as: B. improved cholesterol profiles and a reduction in insulin resistance. Some of the other common forms of intermittent fasting are the second day fast, in which devotees eat no more than 500 calories every other day, and the 5: 2 diet, which fasts normally five days a week and fasts two days.

However, many people have problems spending an entire day with little or no food. Krista Varady, professor of nutrition at the University of Illinois, Chicago, found in her research that time-limited eating makes people lose weight more slowly than other forms of fasting, but that it is generally the simplest form of fasting. People tend to eat 300 to 500 fewer calories a day when they limit themselves to an eight-hour window, said Dr. Varady, who was not involved in the new research.

"The best part is that there are no restrictions during the window," she said. "There is no carbohydrate or calorie count and people don't have to swap out all of the food in their pantries."

Dr. Varady said she plans to start a year-long study on time-limited eating in the near future. "I find it fascinating that this diet has become so popular and that there are so few studies," she said.

Dr. Weiss became interested in time-limited eating after learning of research showing that mice had 24/7 access to high-fat, high-sugar foods that got fat and sick, while mice that ate the same foods got eight years from now ate. Hours daily windows were protected against obesity and metabolic diseases. In his own experience, Dr. Knows that breakfast and food were skipped between noon and 8pm. wasn't very difficult.

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