Evidence mapPaperPMID 39675563Full record

Trial reportThe American journal of clinical nutrition2025

Cold induces increased ad libitum energy intake independent of changes in energy expenditure: a controlled crossover trial in adults.

Yigit Unlu, Paolo Piaggi, Emma J Stinson, Tomás Cabeza De Baca, Theresa L Rodzevik, Mary Walter, Hannah Fry, Jonathan Krakoff, Douglas C Chang

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The American journal of clinical nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02939404 (Energy Intake Response to Short-Term Alterations of Energy Expenditure in Humans), which is not on this map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
field-weighted citation impact
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.

NCT02939404 nacompletednot on this map

Energy Intake Response to Short-Term Alterations of Energy Expenditure in Humans

TypeinterventionalSponsorNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)Ran2017 to 2024Enrolled54ConditionsHealthy VolunteersArmsCold exposure, Normal temperature, Fixed diet, Ad libitum diet, Fasting
3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Combined torso and foot heat exposure reduces acuteTemperature (Austin, Tex.) · 2026
    Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Yigit UnluObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States.
Paolo PiaggiObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States; Department of Information Engineering, University of Pisa, Pisa, Italy. Electronic address: paolo.piaggi@nih.gov.
Emma J StinsonObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States.
Tomás Cabeza De BacaObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States.
Theresa L RodzevikObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States.
Mary WalterClinical Core Laboratory, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States.
Hannah FryObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States.
Jonathan KrakoffObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States.
Douglas C ChangObesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMeasures of energy metabolism (energy expenditure [EE], respiratory exchange ratio [RER]) have been associated with ad libitum energy intake (EI) and weight gain in previous observational studies, suggesting that energy-sensing mechanisms drive EI to meet metabolic energy demands.

objectivesWe aimed to employ mild cold exposure as an intervention to alter energy metabolism and evaluate its causal effects on concurrent and next day ad libitum EI.

methodsIn a controlled crossover study, 47 volunteers (16 female; age 37.2 ± 10.7 y; body mass index 32.4 ± 8.6 kg/m

resultsCompared with thermoneutral conditions, participants consumed 13% more while residing in the chamber during cold (mean difference: 411 ± 987 kcal/d, P = 0.006), but not the day after cold exposure. Neither eucaloric EE, RER, nor carbohydrate oxidation (CARBOX) was significantly changed by cold exposure. However, greater increases in RER and CARBOX during cold exposure were associated with greater ad libitum EI on the day after cold exposure (r = 0.29, P = 0.049 and r = 0.33, P = 0.02), but not with EI during cold exposure. Cold-induced changes in 24-h EE were not associated with changes in ad libitum EI during or after cold exposure.

conclusionAd libitum EI increased during but not after mild cold exposure. There was an effect of 24-h RER and CARBOX during cold exposure that was related to greater ad libitum EI after cold. These results indicate an acute effect of cold on concurrent EI independent of changes in metabolic rate, but also a residual influence of cold on subsequent EI via fuel preference. This trial was registered at clinicaltrials.gov as NCT02939404.

Indexed as

Cold TemperatureEnergy IntakeEnergy MetabolismAdultCross-Over StudiesFemaleHumansMaleMiddle AgedYoung Adultad libitum food intakeadultscarbohydrate oxidationcatecholaminescold-induced thermogenesiscore body temperaturelipid oxidationplasma hormonesRERwhole-room indirect calorimetry

Identifiers

PMID39675563
PMCPMC11863325

What Socratic holds

Textmetadata
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 Socratic graph.