Overview
Submission Instructions
Recent Publications
Frequently Asked Questions
Research Topics
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IJ
International Journal of Obesity publishes research and reviews on biochemical, physiological, genetic, molecular, metabolic, nutritional, psychological and epidemiological aspects of obesity and related disorders.
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Impact Factor
3.8
Quartile
Q2
Open Access Type
Hybrid
ISSN
0307-0565
eISSN
1476-5497
Invitation Only
No
Cost Range
£3290.00/$4990.00/€3990.00 APC for open access; no APC under the traditional publishing model.
Submission Instructions
International Journal of Obesity accepts the following article types. Click on an article type to view submission instructions.
Article
Cover Letter
Cover letter is required. Cover letter must provide the corresponding author's affiliation and contact information, briefly explain the importance of the work and its suitability for the journal's readership, and confirm originality and exclusive submission.
Abstract
A structured abstract is required. Abstract must not exceed 300 words. Abstract must be structured.
Manuscript
Main text must not exceed 4,000 words excluding the abstract, tables/figures, and references. Methods section must provide enough detail for experimental procedures to be reproduced and include references. Manuscript must include an Author Contributions statement and document any use of a large language model in the Methods section or a suitable alternative section if no Methods section is available.
References
References are limited to a maximum of 60. References must follow Vancouver format. References must be numbered in order of citation and listed in double-spaced numerical order at the end of the paper, with all authors listed for up to six authors and the first six followed by et al. for more than six authors.
Figures & Tables
A maximum of 6 tables or figures is allowed, and a composite figure with more than three individual figures counts as two figures. Figures must not be embedded in the text and must be uploaded as separate files, and each table must be uploaded separately. Figure legends must appear on a separate manuscript page after the references, and tables must be editable.
Review Article
Cover Letter
Cover letter is required. Cover letter must provide the corresponding author's affiliation and contact information, briefly explain the importance of the work and its suitability for the journal's readership, and confirm that the material is original research.
Abstract
An abstract is required. Abstract must be unstructured and must not exceed 300 words. Abstract must be unstructured.
Manuscript
Main text must not exceed 6,000 words, excluding the abstract, tables or figures, and references. Review article must include a Methods section with search criteria and selection criteria and must report the total number of articles identified and selected for inclusion. Use of a large language model must be documented in the Methods section or another suitable part of the manuscript, and an Author Contributions statement is required.
References
References must not exceed 120. References must follow Vancouver format. In-text citations must be numbered consecutively from 1 and the reference list must be arranged in numerical order of citation, listing all authors for up to six authors and the first six followed by et al. for more than six.
Figures & Tables
Review article may include a maximum of 8 tables or figures, and a composite figure containing more than three individual figures counts as two figures. Figures must be uploaded as separate files rather than embedded in the text, and each table must be uploaded as a separate file. Figure legends must be provided on a separate manuscript page after the references and tables must be editable.
Systematic Review Article
Cover Letter
Cover letter is required. Cover letter must provide the corresponding author's affiliation and contact information, briefly explain the importance of the work and its suitability for the journal's readership, and confirm originality.
Abstract
A structured abstract is required. Abstract must not exceed 300 words. Abstract must be structured.
Manuscript
Main text must not exceed 6,000 words excluding the abstract, tables/figures, and references. Author Contributions statements are required, competing interests must be noted on the title page, and any use of a large language model must be documented in the Methods section or a suitable alternative section if no Methods section is available.
References
References must not exceed 120. References must follow Vancouver format. References must be numbered in order of citation, listed in numerical order at the end, list all authors when there are up to six and the first six followed by et al. when there are more than six, and include first and last page numbers.
Figures & Tables
A maximum of 8 tables or figures is permitted, and a composite figure containing more than three individual figures counts as two figures. Figures must not be embedded in the text and must be uploaded as separate files, and each table must be uploaded separately. Figure legends must be provided on a separate page after the references, and tables must be editable.
Meta-Analysis
Cover Letter
Cover letter is required. Cover letter must include the corresponding author's affiliation and contact information, briefly explain the importance of the work and its suitability for the journal's diverse readership, and confirm that the material is original research.
Abstract
A structured abstract is required. Abstract must not exceed 300 words. Abstract must be structured.
Manuscript
Main text must not exceed 6,000 words, excluding the abstract, tables/figures, and references. Methods section must provide enough detail for procedures to be reproduced and include references. Author Contributions statements are required, competing interests must be noted on the title page and in the submission, and use of a large language model must be documented in the Methods section or another suitable manuscript section if no Methods section is available.
References
References must not exceed 120. References must follow Vancouver format. References must be numbered in order of citation, listed in double-spaced numerical order at the end, list all authors for up to six authors and the first six followed by et al. for more than six authors, and include first and last page numbers.
Figures & Tables
A maximum of 8 tables or figures is allowed, and a composite figure containing more than three individual figures counts as two figures. Figures must not be embedded in the text and must be uploaded as separate files, and each table must be uploaded separately. Figure legends must be brief and specific and placed on a separate manuscript page after the references, and tables must be editable.
Original Research Papers
Cover Letter
Cover letter is required and must include the corresponding author's affiliation and contact information. Cover letter must briefly explain the importance of the work, why it suits the journal's diverse readership, and confirm that the submission is original research.
Abstract
Abstract requirements are not specified.
Manuscript
Methods section must provide enough detail for experimental procedures to be reproduced and include references, without repeating methods published in detail elsewhere. Manuscript must include an Author Contributions statement, a competing interests statement on the title page, and documentation of any large language model use in the Methods section or a suitable alternative section.
References
References must follow Vancouver format. References must be numbered in order of citation, listed in numerical order at the end, list all authors up to six and the first six followed by et al. when there are more than six.
Figures & Tables
Figures must not be embedded in the text and must be uploaded as separate files, and each table must be uploaded separately. Figure legends must be placed on a separate manuscript page after the references, and tables must be editable and labelled sequentially.
Clinical Trials
Cover Letter
Cover letter is required. Cover letter must provide the corresponding author's affiliation and contact information, briefly explain the importance of the work and its suitability for the journal's readership, and confirm that the submission is original research.
Abstract
Abstract requirements are not specified.
Manuscript
Clinical trial manuscripts describing new therapies must include an appropriate control group and be of sufficiently long duration to generate clinically relevant results, with diet, lifestyle, or nutraceutical trials usually lasting at least 1 year and surgical studies usually lasting at least 1 year. Manuscript must include the trial registry number, an Author Contributions statement, competing interests information, and documentation of any large language model use in the Methods section or another suitable section if no Methods section is available.
References
References must follow Vancouver format. References must be numbered in order of citation, listed at the end in numerical order, include all authors if there are up to six or the first six followed by et al. if there are more than six, and provide first and last page numbers.
Figures & Tables
Figures must be uploaded as separate files rather than embedded in the text, and each table must be uploaded as a separate file. Tables must be editable and labelled sequentially, and figure legends must be brief, specific, and placed on a separate manuscript page after the References section.
Correspondence
Cover Letter
Cover letter is required. Cover letter must provide the corresponding author's affiliation and contact information and briefly explain the importance of the work and its suitability for the journal's readership.
Abstract
Abstract is not required for Correspondence submissions.
Manuscript
Main text must not exceed 500 words, excluding tables, figures, and references. Correspondence must reference the original source, and any use of a large language model must be documented in the manuscript in a suitable section because a Methods section may not be available.
References
Correspondence submissions may include a maximum of 10 references. References must follow Vancouver format. In-text citations must be numbered in order of appearance and the reference list must be presented in numerical order, listing up to six authors in full and using et al. after the first six when there are more than six authors.
Figures & Tables
Correspondence submissions may include a maximum of 2 tables or figures, and a composite figure with more than three individual figures counts as two figures. Figures must not be embedded in the text and must be uploaded as separate files, while each table must be uploaded separately. Figure legends must be brief and placed on a separate manuscript page after the references, and tables must be editable and clearly labelled sequentially.
Brief Communication
Cover Letter
Cover letter is required. Cover letter must provide the corresponding author's affiliation and contact information, explain the importance of the work and its relevance to the journal's readership, and confirm that the submission is original research.
Abstract
Abstract is required. Abstract must be no more than 200 words. Abstract must be unstructured.
Manuscript
Main text must not exceed 1,500 words, excluding tables, figures, and references. Author Contributions statements are required, and any use of a large language model must be documented in the Methods section or another suitable section if no Methods section is available.
References
Reference list may include a maximum of 20 references. References must follow Vancouver format. References must be numbered in order of citation and listed in numerical order at the end, with all authors listed for up to six authors and the first six followed by et al. for more than six authors.
Figures & Tables
Submission may include a maximum of 2 tables or figures, and a composite figure with more than three individual figures counts as two figures. Figures must be uploaded as separate files rather than embedded in the text, and each table must be uploaded separately. Figure legends must be brief and placed on a separate manuscript page after the references, and tables must be editable.
Recent Publications
Dual amylin and calcitonin receptor agonists as multifaceted disease-modifying osteoarthritis drugs
Khaled Elhady Mohamed, Anna Thorsø Larsen, Christian S. Thudium, Andrea Bezerra, Morten Asser Karsdal, Anne-Christine Bay-Jensen, Kim Henriksen
10.1038/s41366-026-02124-0
View Publication
A mental model of obesity: comparing expert and public perceptions in Ireland, the UK, and the US
Deirdre A. Robertson, Ylva Andersson, Ciarán Lavin, Peter D. Lunn
10.1038/s41366-026-02098-z
View Publication
Triglyceride-glucose index trajectories and the incident risk of type 2 diabetes mellitus in Chinese adults with normal weight: the China-PAR project
Yuying Wu, Yang Zhao, Yanyan Zhang, Minqi Gu, Jinliang Liang, Yaqin Su, Taifeng Chen, Li Yang, Liuding Wen, Weifeng Huo, Xueru Fu, Botang Guo, Jianxin Li, Xiangfeng Lu, Fulan Hu, Dongsheng Hu, Ming Zhang
10.1038/s41366-026-02044-z
View Publication
Exercise reprograms the gut microbiota to enhance metabolic outcomes after bariatric surgery: a translational, cross-species study
Alisson Padilha de Lima, Juliana Bueno de Novais, Adriane Elisabete Costa Antunes, Matteo Calgaro, Carlos Merege-Filho, Diego Nunes Rezende, Marina Alvarenga Romero, Heloisa Castanheira Santo André, Igor Baptista, Ana Lúcia de Sá Pinto, Roberto de Cleva, Marco Aurélio Santo, Wagner Silva Dantas, Saulo Gil, Maria Rita Camargo Rodrigues, Guilherme Gianini Artioli, Nicola Vitulo, Hamilton Roschel, Bruno Gualano, Carolina Ferreira Nicoletti, Fabiana Braga Benatti
10.1038/s41366-026-02121-3
View Publication
Dietary intake of polybrominated diphenyl ethers (PBDEs) and the risk of obesity in the French E3N cohort
Xuan Ren, Pauline Frenoy, Fanny Artaud, Chloé Marques, Gianluca Severi, Geneviève Nicolas, Inge Huybrechts, Francesca Romana Mancini
10.1038/s41366-026-02109-z
View Publication
Frequently asked questions
How long does it take to publish?
Submission to first editorial decision (median days): 9; Submission to acceptance (median days): 166
Reformat to International Journal of Obesity using Livewrite PremiumIs a cover letter required?
A cover letter is required. It should include the corresponding author's affiliation and contact information, explain the importance of the work and its suitability for the journal readership, confirm originality and exclusive submission, and include previous reviewer comments if the manuscript was previously considered by another journal.
Reformat to International Journal of Obesity using Livewrite PremiumWhat are the publication costs?
Hybrid open access journal.
Reformat to International Journal of Obesity using Livewrite PremiumResearch Topics
Obesity, Physical Activity, Diet
Adipokines, Inflammation, and Metabolic Diseases
Regulation of Appetite and Obesity
Adipose Tissue and Metabolism
Diabetes, Cardiovascular Risks, and Lipoproteins
Bariatric Surgery and Outcomes
Diet and metabolism studies
Birth, Development, and Health
Obesity and Health Practices
Eating Disorders and Behaviors
Body Composition Measurement Techniques
Nutrition and Health in Aging
Nutritional Studies and Diet
Cardiovascular Disease and Adiposity
Gestational Diabetes Research and Management
Physical Activity and Health
Pharmacology and Obesity Treatment
Biochemical Analysis and Sensing Techniques
Genetic Associations and Epidemiology
Dietary Effects on Health
Muscle metabolism and nutrition
Cardiovascular Function and Risk Factors
Diabetes Treatment and Management
Cardiovascular and exercise physiology
Children's Physical and Motor Development