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Probiotic supplementation improves body composition, lipid profiles, and fatty acid metabolism in combat sports athletes during the weight reduction phase.

Shijiao Yang·Zhenqin Cheng·Wanting Shen·Jing Wang·Meiyi Lai·Xinkai Yu·Qun Zuo
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Abstract

PURPOSE: Pre-competition weight control for combat sports athletes may alter body composition and fatty acid metabolism. Probiotics have shown potential to regulate overall metabolism; however, their specific effects on fatty acid metabolism during weight control in athletes remain unclear. METHODS: Thirty-two combat sports athletes participating in the 4-week weight reduction period were assigned to either the probiotic group (Group E) or the placebo group (Group C). Body composition, lipid profiles, and fatty acid metabolism were measured before and after the 4-week weight reduction phase. RESULTS: All the athletes experienced a decrease in body weight, body mass index (BMI), body fat percentage, and muscle mass following the 4-week weight loss intervention. Notably, a more significant reduction in body fat percentage (p&#x2009;<&#x2009;0.05) was observed, along with lower levels of triglycerides (TG) and low-density lipoprotein cholesterol (LDL-C), specifically in Group E. Weight loss intervention resulted in increased levels of short-chain fatty acids (SCFAs), specifically acetic acid, propionic acid, and butyric acid. Notably, Group E exhibited higher mean values for SCFAs compared to Group C (p&#x2009;<&#x2009;0.05). Additionally, the serum levels of &#x3b3;-linolenic acid and 8,11,14-eicosatrienoic acid were significantly reduced in Group E (p&#x2009;<&#x2009;0.05). In contrast, the majority of free fatty acids (FFAs) showed significant increases, with greater magnitudes of change observed in Group C (p&#x2009;<&#x2009;0.05). CONCLUSION: Probiotic supplementation can improve body composition, enhance SCFAs levels, and decrease circulating FFAs in combat sports athletes, suggesting that probiotics may have a beneficial impact on pre-competition weight management. TRIAL REGISTRATION NUMBER: chiCTR2400079908 (Reg Date:2024-01-16).

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HumansProbioticsWeight LossBody CompositionMaleDietary SupplementsYoung AdultFatty AcidsAthletesLipidsBody Mass IndexMartial ArtsFatty Acids, VolatileSports Nutritional Physiological PhenomenaBoxingAdultTriglyceridescombat sportsfree fatty acidshort-chain fatty acidweight lossJournal ArticleRandomized Controlled Trial

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Shijiao Yang, Zhenqin Cheng, Wanting Shen, Jing Wang, Meiyi Lai, Xinkai Yu, Qun Zuo. 2026-09-06. Probiotic supplementation improves body composition, lipid profiles, and fatty acid metabolism in combat sports athletes during the weight reduction phase.. https://doi.org/10.1080/15502783.2026.2726522

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Journal Article; Randomized Controlled Trial resourceAdult subjectAthletes subjectBody Composition subjectBody Mass Index subjectBoxing subjectDietary Supplements subjectFatty Acids subjectFatty Acids, Volatile subjectHumans subjectJournal Article subjectLipids subjectMale subjectMartial Arts subjectRandomized controlled trials studycombat sports subject

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