Silva, Sílvia Manuela Dias Tavares daSantana, Elaine dos SantosBernardo, Joana Vanessa RibeiroSilva, Aline ConceiçãoLopes, CarlosAlmeida, Cristina Vaz deApóstolo, João Luís AlvesEscola Superior de Enfermagem de Coimbra2025-04-022025-04-022025Silva, S. M. D. T. ., Santana, E. S., Bernardo, J. V. R., Silva, A. C., Lopes, C., Almeida, C. V., & Apóstolo, J. L. A. (2025). Citizen science for health in the co-creation of evidence summaries for citizens. Journal of Nursing Referência, 6(4), 1–8. https://doi.org/10.12707/RVI24.96.3696608740283http://hdl.handle.net/10400.12/13510Background: Citizen science (CS) and health literacy (HL) promote citizen involvement in scientific research and access to health information. CS enables citizen involvement in co-creating knowledge, while HL enhances citizens’ ability to make informed decisions.Objective: To systematize older citizen involvement in the co-creation of evidence summaries for citizens (ESC), creating a replicable process and making health information more accessible.Methodology: Methodological, qualitative study based on the assumptions of Polit and Beck and conducted with older people residing in the community. The data were analyzed according to Bardin’s content analysis methodology.Results: The participants were actively involved. They reflected on each step and contributed to en-hancing the understanding of the information. This collaborative process results in a guide for ESC co-creation and co-validation.Conclusion: The methodology proved effective in involving citizens in the ESC co-creation, promot-ing health literacy and increasing the social relevance of scientific research. The guide can be replicated and used by other professionals and researchers.engCitizen scienceHealth literacyCitizen participation in science and technologyEvi-dence-based practiceperiodical10.12707/RVI24.96.36966