Evidence map›Paper›PMID 27136388›Full record

ArticleObesity (Silver Spring, Md.)2016

Persistent metabolic adaptation 6 years after "The Biggest Loser" competition.

Erin Fothergill, Juen Guo, Lilian Howard, Jennifer C Kerns, Nicolas D Knuth, Robert Brychta, Kong Y Chen, Monica C Skarulis, Mary Walter, Peter J Walter and 1 more

Registry-linked trialAbstract read
In one paragraph

Article in Obesity (Silver Spring, Md.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06079658 (The Effects of Continuous vs. Intermittent Caloric Restriction on Fat Loss), which is not on this map. Cited by 319 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
319citing papers in PubMed, 5 pooled it
44.0field-weighted citation impact, top 1% of its field
1 · What the graph read from 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.

2 · The registry

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.

NCT06079658 nacompletednot on this mapstarted 2022, after this paper: background citation

The Effects of Continuous vs. Intermittent Caloric Restriction on Fat Loss: A Randomized Controlled Trial

TypeinterventionalSponsorCoastal Carolina UniversityRan2022 to 2023Enrolled40ConditionsObesityArmsContinuous Caloric Restriction versus Intermittent Caloric Restriction on Fat Loss
3 · Its place in the literature

Who cites it

319 citing papers in PubMed, 5 syntheses or guidelines pooled it, 653 citations in OpenAlex.

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  4. Roles of the gut microbiome in weight management.Nature reviews. Microbiology · 2023
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  5. Obesity in South and Southeast Asia-A new consensus on care and management.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2023
    Guideline
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259 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Erin FothergillNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Juen GuoNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Lilian HowardNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Jennifer C KernsHospitalist Section, Washington DC Veterans Affairs Medical Center, Washington, DC, USA.
Nicolas D KnuthDepartment of Kinesiology, Towson University, Baltimore, Maryland, USA.
Robert BrychtaNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Kong Y ChenNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Monica C SkarulisNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Mary WalterNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Peter J WalterNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
Kevin D HallNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland, USA.
National Institutes of Health · USNational Institute of Diabetes and Digestive and Kidney Diseases · USTowson University · USWashington DC VA Medical Center · US

Funding

Clinical Stable Isotope Research & SupportZICDK075039 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI WALTER, PETER · 2009 to 2025
$23.2M
Clinical Research and Assay SupportZICDK071006 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI WALTER, MARY · 2009 to 2025
$20.6M
Development of obesity and metabolic clinical research programsZIADK071014 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI CHEN, KONG · 2009 to 2025
$12.3M
Metabolic Research Core: energy balance and obesity studiesZICDK071013 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI CHEN, KONG · 2009 to 2025
$12.3M
Metabolic and body composition changes during rapid and massive weight lossZIADK075076 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI HALL, KEVIN · 2012 to 2018
$1.3M
Intramural NIH HHS ZIA DK075076
6 · The paper itself

Abstract

objectiveTo measure long-term changes in resting metabolic rate (RMR) and body composition in participants of "The Biggest Loser" competition.

methodsBody composition was measured by dual energy X-ray absorptiometry, and RMR was determined by indirect calorimetry at baseline, at the end of the 30-week competition and 6 years later. Metabolic adaptation was defined as the residual RMR after adjusting for changes in body composition and age.

resultsOf the 16 "Biggest Loser" competitors originally investigated, 14 participated in this follow-up study. Weight loss at the end of the competition was (mean ± SD) 58.3 ± 24.9 kg (P < 0.0001), and RMR decreased by 610 ± 483 kcal/day (P = 0.0004). After 6 years, 41.0 ± 31.3 kg of the lost weight was regained (P = 0.0002), while RMR was 704 ± 427 kcal/day below baseline (P < 0.0001) and metabolic adaptation was -499 ± 207 kcal/day (P < 0.0001). Weight regain was not significantly correlated with metabolic adaptation at the competition's end (r = -0.1, P = 0.75), but those subjects maintaining greater weight loss at 6 years also experienced greater concurrent metabolic slowing (r = 0.59, P = 0.025).

conclusionsMetabolic adaptation persists over time and is likely a proportional, but incomplete, response to contemporaneous efforts to reduce body weight.

Indexed as

Absorptiometry, PhotonAdultBasal MetabolismBody CompositionBody Mass IndexBody WeightFemaleFollow-Up StudiesHumansMaleMiddle AgedObesity, MorbidWeight Loss

Identifiers

PMID27136388
PMCPMC4989512
OpenAlexW2346401028

What OpenQuestion holds

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Read underepoch 390

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.