Energy balance
Intermittent Energy Restriction (IER) paradigms, including Intermittent Fasting (IMF) and Time-Restricted Feeding (TRF), produce equivalent weight loss compared to Continuous Energy Restriction (CER) when total caloric intake is matched.
If you are overweight or obese, you can lose weight using Intermittent Fasting (fasting 2-3 days a week or restricting eating to 8-10 hours a day) just as effectively as eating less every single day. The key is that you don't need to restrict calories on your 'fed' days, and most people naturally eat less overall. Focus on consistency with your chosen window rather than perfection, as the total energy deficit matters most.
Overall, the available evidence suggests that IER paradigms produce equivalent weight loss when compared to CER, with 9 out of 11 studies reviewed showing no differences between groups in weight or body fat loss.
Why this rating
Based on a narrative review of 11 randomized clinical trials, which is high-quality evidence, though not a meta-analysis.
Source
Effectiveness of Intermittent Fasting and Time-Restricted Feeding Compared to Continuous Energy Restriction for Weight Loss
Corey A. Rynders et al. · Nutrients · 2019
DOI 10.3390/nu11102442
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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 →