Research

Hormonal

Intermittent Fasting (IF) regimens (5:2, ADF, ADMF, TRF) produce weight loss comparable to daily caloric restriction (CR), but may offer superior insulin-sensitizing benefits independent of weight loss.

If you are choosing between Intermittent Fasting and daily calorie restriction for weight loss, know that both methods are equally effective for losing weight. However, IF may offer extra benefits for your metabolic health, such as better insulin sensitivity, which might be important if you have prediabetes or metabolic syndrome. Choose the method you can sustain long-term.

GoodQualifiesHIGH confidence
Weight loss is common after IF but does not appear to be different than daily caloric restriction when compared directly. IF may also provide additional cardiometabolic benefit, such as insulin sensitization, that is independent from weight loss.
Kristin K. Hoddy et al. · Obesity · 2020

Why this rating

Based on a comprehensive review of multiple clinical trials and meta-analyses.

Source

Intermittent Fasting and Metabolic Health: From Religious Fast to Time‐Restricted Feeding

Kristin K. Hoddy et al. · Obesity · 2020

DOI 10.1002/oby.22829

narrative_reviewCited 126×
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DOI resolved against Crossref · corpus check 2026-06-10

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