Trial reportInternational journal of obesity (2005)2019
Effect of intermittent compared to continuous energy restriction on weight loss and weight maintenance after 12 months in healthy overweight or obese adults.
Trial report in International journal of obesity (2005), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 51 papers, 14 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
51 citing papers in PubMed, 14 syntheses or guidelines pooled it, 99 citations in OpenAlex.
- Pooled it
- Intermittent Fasting for the Prevention of Cardiovascular Disease Risks: Systematic Review and Network Meta-Analysis.Current nutrition reports · 2025Pooled it
- Intermittent fasting strategies and their effects on body weight and other cardiometabolic risk factors: systematic review and network meta-analysis of randomised clinical trials.BMJ (Clinical research ed.) · 2025Pooled it
- Effects of different types of intermittent fasting on metabolic outcomes: an umbrella review and network meta-analysis.BMC medicine · 2024Pooled it
- Comparing caloric restriction regimens for effective weight management in adults: a systematic review and network meta-analysis.The international journal of behavioral nutrition and physical activity · 2024Pooled it
- Effects of Intermittent Energy Restriction Compared with Those of Continuous Energy Restriction on Body Composition and Cardiometabolic Risk Markers - A Systematic Review and Meta-Analysis of Randomized Controlled Trials in Adults.Advances in nutrition (Bethesda, Md.) · 2024Pooled it
- A meta-analysis comparing the effectiveness of alternate day fasting, the 5:2 diet, and time-restricted eating for weight loss.Obesity (Silver Spring, Md.) · 2023Pooled it
- Pooled it
- Intermittent Energy Restriction for Weight Loss: A Systematic Review of Cardiometabolic, Inflammatory and Appetite Outcomes.Biological research for nursing · 2022Pooled it
- Pooled it
- Effects of Intermittent Fasting in Human Compared to a Non-intervention Diet and Caloric Restriction: A Meta-Analysis of Randomized Controlled Trials.Frontiers in nutrition · 2022Pooled it
- Intermittent fasting for the prevention of cardiovascular disease.The Cochrane database of systematic reviews · 2021Pooled it
- Intermittent fasting and weight loss: Systematic review.Canadian family physician Medecin de famille canadien · 2020Pooled it
- Effects of Ramadan and Non-ramadan Intermittent Fasting on Body Composition: A Systematic Review and Meta-Analysis.Frontiers in nutrition · 2020Pooled it
- Trial
- The Effect of 4:3 Intermittent Fasting on Weight Loss at 12 Months : A Randomized Clinical Trial.Annals of internal medicine · 2025Trial
- The Efficacy of Short-Term Weight Loss Programs and Consumption of Natural Probiotic Bryndza Cheese on Gut Microbiota Composition in Women.Nutrients · 2021Trial
- Trial
- A randomised controlled trial of the 5:2 diet.PloS one · 2021Trial
- No Difference in Weight Loss, Glucose, Lipids and Vitamin D of Eggs for Breakfast Compared with Cereal for Breakfast during Energy Restriction.International journal of environmental research and public health · 2020Trial
Corrections and comments
- Erratum issued
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectiveIntermittent energy restriction (IER) is an alternative to continuous energy restriction (CER) for weight loss. There are few long-term trials comparing efficacy of these methods. The objective was to compare the effects of CER to two forms of IER; a week-on-week-off energy restriction and a 5:2 program, during which participants restricted their energy intake severely for 2 days and ate as usual for 5 days, on weight loss, body composition, blood lipids, and glucose. SUBJECTS AND
methodsA one-year randomized parallel trial was conducted at the University of South Australia, Adelaide, Australia. Participants were 332 overweight and obese adults, ages 18-72 years, who were randomized to 1 of 3 groups: CER (4200 kJ/day for women and 5040 kJ/day for men), week-on-week-off energy restriction (alternating between the same energy restriction as the continuous group for one week and one week of habitual diet), or 5:2 (2100 kJ/day on modified fast days each week for women and 2520 kJ/day for men, the 2 days of energy restriction could be consecutive or non-consecutive). Primary outcome was weight loss, and secondary outcomes were changes in body composition, blood lipids, and glucose.
resultsFor the 146 individuals who completed the study (124 female, 22 male, mean BMI 33 kg/m DISCUSSION AND
conclusionThe two forms of IER were not statistically different for weight loss, body composition, and cardiometabolic risk factors compared to CER.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.