Energy balance
Time-restricted feeding (TRF) with an 8-hour eating window (16:8) produces moderate weight loss in individuals with overweight or obesity, with effects potentially exceeding 5% of initial body weight when combined with caloric restriction.
If you have excess weight, try eating all your meals within an 8-hour window each day (e.g., 12 PM to 8 PM). You do not need to count calories if you are not used to it, but you must stop eating after your chosen end time. If you want faster results, combine this with a modest calorie reduction. Expect moderate weight loss, potentially over 5% of your body weight if you also restrict calories.
TRF may result in moderate weight loss in individuals with overweight/obesity; when TRF is combined with caloric restriction, weight loss is >5% of the initial body weight
Why this rating
Based on a systematic review of 24 RCTs, though some studies had bias concerns regarding randomization.
Source
Effects of Time-Restricted Feeding and Ramadan Fasting on Body Weight, Body Composition, Glucose Responses, and Insulin Resistance: A Systematic Review of Randomized Controlled Trials
Sofia Tsitsou et al. · Nutrients · 2022
DOI 10.3390/nu14224778
More from this paper
- Time-restricted feeding (TRF) improves insulin sensitivity and glycemic control (including reduced glucose variability and HbA1c) in individuals with overweight or obesity, independent of significant weight loss in some studies.Good
- Ramadan Fasting (RF) protocols (28-30 days) have insufficient evidence to draw definitive conclusions regarding their effects on body weight, composition, or glycemic control compared to Time-Restricted Feeding.Limited
Related findings · Energy balance
- Achieving a total body weight loss of 10-15% (or >10-15 kg) through Total Diet Replacement (TDR) induces remission of Type 2 Diabetes in individuals with short-duration disease.Strong
- Bariatric surgery is superior to medical management alone for inducing significant long-term weight loss, remission of type 2 diabetes, and reduction in mortality for patients with BMI ≥ 40 or ≥ 35 with comorbidities.Strong
- Achieving type 2 diabetes remission requires significant weight loss (≥15 kg) via major caloric restriction, independent of macronutrient composition.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →