Evidence map›Paper›PMID 40836642›Full record

SynthesisEuropean eating disorders review : the journal of the Eating Disorders Association2026

Idealized Body Images and Fitness Lifestyles on Social Media: A Systematic Review Exploring the Link Between Social Media Use and Symptoms of Orthorexia Nervosa and Muscle Dysmorphia.

Cristina Vintró-Alcaraz, Cristina Ballero Reque, Georgios Paslakis, Giulia Testa

Abstract readSystematic Review
In one paragraph

Synthesis in European eating disorders review : the journal of the Eating Disorders Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Goals in Nutrition Science 2025-2030.Frontiers in nutrition · 2026
    Review
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

4 authors.

Cristina Vintró-AlcarazDepartment of Psychiatry, Hospital de Mataró, Consorci Sanitari del Maresme (CSDM), Mataró, Spain.
Cristina Ballero RequeMedical Faculty, University Clinic for Psychosomatic Medicine and Psychotherapy, Ruhr-University Bochum (RUB), Luebbecke, Germany.ORCID https://orcid.org/0000-0003-0097-7594
Georgios PaslakisMedical Faculty, University Clinic for Psychosomatic Medicine and Psychotherapy, Ruhr-University Bochum (RUB), Luebbecke, Germany.
Giulia TestaInstituto de Investigación, Transferencia e Innovación, Universidad Internacional de La Rioja (UNIR), La Rioja, Spain.

Funding

Instituto de Transferencia e Innovación -ITEI, Universidad Internacional de la Rioja-UNIR B24-007
6 · The paper itself

Abstract

objectiveSocial media (SM) is a source of appearance-focused content that promotes idealized bodies and appearances. It also spreads misinformation about nutrition and fitness practices. While SM use has been linked to attitudes toward eating disorders, its association with orthorexia nervosa and muscle dysmorphia-characterized by obsessive behaviors around diet and body image-remains underexplored. This study systematically reviewed quantitative research on the relationship between SM use and symptoms of orthorexia nervosa and muscle dysmorphia.

methodThe review was registered on PROSPERO and adhered to PRISMA guidelines. Twenty-two studies (orthorexia nervosa: n = 17; muscle dysmorphia: n = 5) were included, primarily cross-sectional and conducted on non-clinical populations. Study quality was assessed using the Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies.

resultsMost studies found that higher SM use was associated with greater orthorexia nervosa and muscle dysmorphia symptoms, with specific contents -such as posts regarding nutrition, thinness, and exercise- particularly associated with orthorexia nervosa. Platforms like Instagram, Tumblr, and Grindr demonstrated stronger associations with orthorexia nervosa symptoms. Gender differences were also observed.

conclusionsFindings suggest a link between SM use and orthorexia nervosa symptoms, with preliminary evidence also supporting an association with muscle dysmorphia symptoms. Future research should explore causality and develop targeted prevention and treatment strategies to mitigate these risks.

Indexed as

Body Dysmorphic DisordersBody ImageFeeding and Eating DisordersSocial MediaHumansbigorexiamuscle dysmorphiaorthorexia nervosasocial mediasocial networks

Identifiers

PMID40836642
PMCPMC12694696

What OpenQuestion holds

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LicenceCC BY
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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.