ArticleFrontiers in nutrition2026
Phase angle as a potential marker of early nutritional and metabolic changes following metabolic bariatric surgery: a retrospective study.
Article in Frontiers in nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: The phase angle (PhA) is associated with nutritional status and serves as a marker of cellular and overall health. The aim of this study is to evaluate changes in PhA during the early postoperative period (6 months) in patients undergoing metabolic bariatric surgery (MBS), and to identify potential factors correlated with these changes. Methods: This retrospective study included 120 patients who underwent MBS (Sleeve Gastrectomy, Results: PhA values at 1-, 3-, and 6-months postoperatively were significantly lower than preoperative values ( Conclusion: This study suggests that PhA significantly decreases during the early postoperative period following MBS and is associated with several body composition and metabolic parameters, with vitamin D and EWL emerging as independent predictors of this decline and a borderline association observed for HOMA-IR. These findings suggest that PhA may serve as a potential adjunctive marker reflecting early nutritional and metabolic adaptations in this patient population.
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