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r/intermittentfasting@intermittentfastingreddit
August 2018 to August 2019 to today: 145lbs down and officially under 200lbs for the

what it claims

Intermittent fasting is presented as a powerful and effective tool for initiating a radical physical transformation and lasting weight loss, provided it is supported by rigorous personal discipline.

mixed

The community largely agrees in celebrating this approach, viewing it as a major transformational lever, although some members rightly point out that the credit goes primarily to…

noli's read

The community largely agrees in celebrating this approach, viewing it as a major transformational lever, although some members rightly point out that the credit goes primarily to individual perseverance. Scientifically, intermittent fasting is recognized in several systematic reviews and meta-analyses (e.g., Journal of the Academy of Nutrition and Dietetics) as an effective method for weight loss, mainly because it promotes a natural caloric deficit. However, research indicates that results are comparable to those of traditional continuous caloric restriction, which nuances the idea that fasting possesses a 'magical' metabolic advantage. The psychological aspect of discipline and self-control, mentioned in the thread, is a success factor validated by observational studies on changes in eating behavior. In short, while the framework of fasting helps to structure intake, the exaggeration sometimes lies in attributing exclusive power to it, when it is the consistency of the energy deficit that produces the results. The consensus on this forum is one of strong approval, seeing this method as a trigger for hope and concrete change.

the sources

  1. 1Cioffi I, Evangelista A, Ponzo V, et al. 2018
  2. 2Lowe DA, Wu N, Rohdin-Bibby L, et al. 2020
  3. 3Liu D, Huang Y, Huang C, et al. 2022
  4. 4Jamshed H, Steger FL, Bryan DR, et al. 2022
  5. 5r/intermittentfasting

Claimed by r/intermittentfasting. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Evidence
B
Effect
body-weight change vs continuous energy restriction — no meaningful difference: weighted mean difference -0.61 kg (95% CI -1.70 to 0.47), non-significant; TRE added to calorie counting gives no extra loss beyond the calorie deficit
Measured on
adults with overweight or obesity

What’s uncertain

Fasting has no special fat-loss power beyond the calorie deficit it helps create. If it makes you overeat later or feel miserable, a simpler steady approach works just as well.

r/intermittentfasting in the Register12 claims graded · solidity 88/100See their record →

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