Major Review Reveals Intermittent Fasting Has No Impact on Weight Loss

Research Questions Effectiveness of Intermittent Fasting for Weight Loss

If you’re aiming to shed some pounds, you might want to think twice about intermittent fasting. Recent research published this month suggests it might not be as effective as commonly believed.

A study analyzed data from roughly twenty randomized controlled trials and found that individuals practicing intermittent fasting typically didn’t lose significantly more weight than those simply following standard dietary advice. In fact, the evidence suggests that it might not even outperform doing nothing at all.

According to the researchers involved, “compared to regular dietary advice, intermittent fasting may result in little to no difference in weight loss or quality of life.” This research was published over the weekend in the Cochrane Library.

Intermittent Fasting: A Weak Case

The Cochrane Library is a respected British-based organization that frequently publishes detailed reviews on various aspects of public health, such as weight loss treatments.

In this study, conducted by scientists from Argentina and the U.S., data from 22 trials was examined. Nearly 2,000 participants were involved in these trials, which compared overweight or obese individuals undergoing different forms of intermittent fasting (like alternate-day and time-restricted fasting) to those receiving conventional dieting advice or no intervention. The trials lasted a minimum of four weeks, with health tracked for at least six months.

Ultimately, the results indicated that intermittent fasting didn’t lead to significant weight loss compared to typical dieting methods, nor did it enhance the overall quality of life for participants. However, it was noted that fasting didn’t lead to notably more adverse effects than regular dieting, though this conclusion came with some uncertainty due to limited evidence.

Perhaps the most disheartening outcome was the finding that, when compared to making no changes at all, “intermittent fasting likely makes little to no difference to weight loss,” according to the researchers.

Interpreting the Findings for Weight Loss

This research doesn’t suggest that intermittent fasting is entirely without merit. For some people, a structured eating schedule could indeed help them adhere to a healthier eating pattern. However, these findings resonate with other studies that haven’t found a significant advantage in weight loss for most individuals who fast.

These studies also serve as a reminder of a common experience for many trying to lose weight: dietary and lifestyle changes often don’t result in long-term weight loss. It’s not unusual for people to lose weight initially through dieting and exercise, only to regain most or all of it later. Obesity is a complicated issue, and our bodies often resist lasting weight reductions.

Of course, there are still numerous health benefits associated with adopting a new diet or exercise routine. Additionally, recent treatments like GLP-1 therapy have shown promise in addressing obesity, though they come with their own challenges (like the difficulty of stopping the medication without regaining the weight).