Evidence map›Paper›PMID 42151621›Full record

ArticleEating and weight disorders : EWD2026

An exploratory study on portion size estimation errors: psychological correlates of portion size estimation errors in a non-clinical sample with normal-weight.

Mayron Piccolo, Tanya Tandon, Dany Laure Wadji, Stephanie Haymoz, Christophe Mueller-Pfeiffer, Gabriella Milos, Chantal Martin-Soelch

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Eating and weight disorders : EWD, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Mayron PiccoloDepartment of Psychology, Harvard University, William James Hall 844, 33 Kirkland Street, Cambridge, MA, 02138, USA. mpiccolo@fas.harvard.edu.
Tanya TandonUnit of Clinical and Health Psychology, University of Fribourg, Fribourg, Switzerland.
Dany Laure WadjiDepartment of Health Sciences, University of Quebec, Rimouski, Canada.
Stephanie HaymozUniversity Service for Child and Adolescent Psychiatry, Lausanne University Hospital, Lausanne, Switzerland.
Christophe Mueller-PfeifferDepartment of Consultation-Liaison-Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Gabriella MilosDepartment of Consultation-Liaison-Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Chantal Martin-SoelchUnit of Clinical and Health Psychology, University of Fribourg, Fribourg, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAccurate perception of food portion sizes is implicated in healthy eating, yet little is known about psychological correlates of portion estimation in non-clinical, normal-weight adults. This exploratory study examined whether consumption intent (self vs other) and markers of psychological processes associated with eating (dietary restraint, shape/weight overvaluation, body dissatisfaction) are associated with portion size estimation errors, and whether these errors relate to body mass index (BMI).

methodsSeventy-one adults (BMI 18.5-24.9 kg/m

resultsConsumption intent did not influence portion size estimation (p = 0.989), so conditions were combined. Estimation Error Indices were positively correlated with Dietary Restraint (r

conclusionIn normal-weight adults without eating disorders, greater dietary restraint is associated with larger biases in portion size estimation, whereas BMI and body-related evaluative concerns primarily track weight status rather than perceptual errors in portion size estimations. Findings are exploratory and warrant replication in larger, more diverse samples. LEVEL OF EVIDENCE: III. Evidence obtained from well-designed cohort or case-control analytic studies.

Indexed as

Body DissatisfactionBody ImageFeeding BehaviorPortion SizeAdolescentAdultBody Mass IndexBody SatisfactionBody WeightFemaleHumansMaleMiddle AgedSurveys and QuestionnairesYoung AdultEating pathologyErrorPortion size estimationWeight disorders

Identifiers

PMID42151621
PMCPMC13197379

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.