{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T16:43:25Z","timestamp":1786121005121,"version":"build-2736575974"},"reference-count":58,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T00:00:00Z","timestamp":1785974400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Context<\/jats:title>\n                    <jats:p>Phase angle (PhA), derived from bioelectrical impedance analysis, is inversely associated with malnutrition, a common condition in chronic kidney disease (CKD) managed through dietary therapy. Although evidence from oncology and sports medicine suggests nutritional interventions may improve PhA, supporting its potential use as a marker of therapeutic efficacy, data from CKD remain limited.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The impact of nutritional-related interventions on PhA values in patients with CKD and undergoing dialysis was evaluated in this systematic review and meta-analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Data sources<\/jats:title>\n                    <jats:p>A systematic literature search for clinical trial studies was conducted in the PubMed, Scopus, Web of Science, CINAHL, and Embase databases up to September 2025.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Data extraction<\/jats:title>\n                    <jats:p>Eligible clinical trials included adults with CKD and undergoing dialysis, applying any dietetic intervention as compared with a control, and reporting PhA variations. Meta-analysis was conducted only on data from randomized clinical trials (RCTs) and analyzed by stratification according to intervention details.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Data analysis<\/jats:title>\n                    <jats:p>A total of 14 studies (n\u2009=\u20099 RCTs) comprising 969 participants were included in the review. Overall, there was no influence of dietetic intervention accompanied or not by an exercise-related component, compared with standard of care (ie, no intervention), on PhA values (mean difference [MD]\u2009=\u20090.22; 95% CI, \u22120.20 to 0.63; P\u2009&amp;lt;\u2009.001; I2\u2009=\u200978%), nor did the isolated effect of the dietary component (MD\u2009=\u20090.26; 95% CI, \u22120.22 to 0.73; P\u2009&amp;lt;\u2009.001; I2\u2009=\u200980%) or use of amino acids or a protein-based unimodal intervention (MD\u2009=\u20090.49; 95% CI, \u22120.19 to 1.17; P\u2009&amp;lt;\u2009.001; I2\u2009=\u200973%) have an impact.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Our meta-analysis did not show influences of dietetic intervention on PhA among patients with CKD who are undergoing dialysis. However, given low number of RCTs and important risk of bias, high-quality RCTs are needed to verify our findings.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Systematic Review Registration<\/jats:title>\n                    <jats:p>PROSPERO no. CRD42024601056<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/nutrit\/nuag113","type":"journal-article","created":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T11:57:17Z","timestamp":1783511837000},"source":"Crossref","is-referenced-by-count":0,"title":["Effect of Dietary Interventions on Phase Angle in Patients with Chronic Kidney Disease Undergoing Dialysis: A Systematic Review and Meta-Analysis"],"prefix":"10.1093","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-1537-4561","authenticated-orcid":false,"given":"Callebe","family":"Frizzas","sequence":"first","affiliation":[{"name":"Nutrition School, Federal University of Paran\u00e1 , Curitiba, Paran\u00e1, 80210-170,","place":["Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2311-7298","authenticated-orcid":false,"given":"Paola","family":"Dantas de Oliveira L\u00fcbke","sequence":"additional","affiliation":[{"name":"S\u00e3o Jos\u00e9 dos Pinhais Municipal 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