• Patricia M Feijó, Viviane D Rodrigues, Mônica S Viana, Mylena P Dos Santos, Eliana Abdelhay, João P Viola, Nivaldo B de Pinho, and Renata B Martucci.
• Nutrition and Dietetic Service, Hospital de Câncer I, Instituto Nacional de Câncer José Alencar Gomes da Silva, Rio de Janeiro, Brazil.
• Nutrition. 2019 May 1; 61: 125-131.

ObjectiveThe aim of this study was to study the effect of ω-3 supplementation on the nutritional status and the immune and inflammatory profiles of patients with gastric cancer during antineoplastic pretreatment.MethodsThis was a randomized, open, controlled longitudinal study with intervention in outpatient patients with gastric cancer. Sixty-eight patients were randomized into two groups and received either a formula enriched with ω-3 (intervention group [IG]) or standard formula without ω-3 (control group) for 30 d consecutively. Nutritional status (based on patient-generated subjective global assessment, bioimpedance, and anthropometric measurements) and immune and inflammatory parameters were collected before and after supplementation. Results were expressed as frequency, median, and interquartile intervals and were compared by non-parametric test. P < 0.05 was considered statistically significant.ResultsThirty-four patients were included in each group. Of the patients, 64.7% were men, 44.1% were older than 60 years, and 45.6% had stage III disease. There was an increase in C-reactive protein in the control group before and after supplementation, in addition to the worsening in some anthropometric parameters, such as arm muscle area and arm muscle circumference. There was maintenance of the immune profile in both groups. An increase in weight gain was observed in the IG but not in the control group (1.2 [0.9-9] versus 0.7 kg [0.4-1.3]; P = 0.03), as was a reduction of interleukin-6 (5.7 [4.1-6.4] versus 6.3 pg/mL [5.6-8.6]; P = 0.03) and a maintenance of nutritional status, after supplementation.ConclusionsSupplementation with ω-3 leads to weight gain, reduction in the inflammatory profile, and maintenance of the nutritional and immune profiles of these patients, but further studies are needed to examine changes in body composition.Copyright © 2018 Elsevier Inc. All rights reserved.

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