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Once celebrated as an effective weight loss strategy, recent research suggests that intermittent fasting might not be the miracle solution people hoped for.
Intermittent fasting involves eating all your meals within a specific time frame, usually between 8 a.m. and 4 p.m. Other variations include the '5:2' method, where you eat normally for five days and fast for two. The concept is that limiting eating times reduces calorie intake, which should theoretically lead to weight loss.
It’s easy to see why intermittent fasting gained so much popularity as a potential weight loss miracle. A 2017 statement from the American Heart Association supported the idea, stating, 'intentional eating with mindful attention to the timing and frequency of eating occasions could lead to healthier lifestyle and cardiometabolic risk factor management.' Celebrities like Hugh Jackman, Gisele Bündchen, and Terry Crews have also endorsed the practice. However, the science doesn’t quite support these claims.
A year-long study published in the New England Journal of Medicine divided participants into two groups: one that practiced both calorie and time restrictions, and another that only followed calorie restrictions. The findings revealed no advantage to eating within a specific time frame. Those who followed intermittent fasting showed no notable improvements in waist size, BMI, body fat, blood pressure, or metabolic health compared to the control group.
It’s important to note: both groups, including the control group and the variant group, lost weight. The key to weight loss remains caloric intake, not the timing of meals. It’s not as important when you eat, but rather what you eat. So for all the midnight snackers out there, you can still indulge—just swap the chips and cookies for some carrots and hummus.
