Arslan, SedatKarimkhani, HadiKaçar, Mustafa2026-04-212026-04-2120260021-12651863-436210.1007/s11845-026-04353-82-s2.0-105034805587https://hdl.handle.net/123456789/9012https://doi.org/10.1007/s11845-026-04353-8Background Exercise-induced muscle damage, oxidative stress, and inflammation can impair recovery and performance in elite athletes. Anthocyanin-rich New Zealand blackcurrant (NZBC) has been proposed as a nutritional strategy to counteract these effects. Methods In a randomized, double-blind, placebo-controlled trial, 29 male elite taekwondo athletes received either NZBC extract (210 mg anthocyanins/day) or placebo for 7 days. Blood samples and muscle soreness ratings were collected at baseline, immediately post-exercise, 24 h, and 7 d after repeated high-intensity training sessions. Primary outcomes included creatine kinase (CK) and reactive oxygen species (ROS); secondary outcomes were total antioxidant capacity (TOAC) and inflammatory cytokines. Results Compared with placebo, NZBC significantly attenuated the 24-h increase in CK (mean difference - 356 U/L; 95% CI - 510 to - 202) and ROS (- 1.8 units; 95% CI - 2.5 to - 1.0), while enhancing TOAC (+ 0.21 mmol Trolox equivalents; 95% CI + 0.09 to + 0.33). At 7 days, cytokine levels (IL-6, TNF-alpha) were lower in NZBC than placebo (IL-6: -1.2 pg/mL; 95% CI - 2.1 to - 0.3). Effect sizes were moderate to large. No adverse events were reported. Conclusions Short-term supplementation with NZBC extract reduced exercise-induced muscle damage, oxidative stress, and inflammation in elite taekwondo athletes. These findings support the role of anthocyanin-rich NZBC as a personalized recovery aid in combat sports.eninfo:eu-repo/semantics/openAccessAnthocyaninsInflammationNew Zealand Blackcurrant (NZBC)Ribes Nigrum LRECOVERYRibes Nigrum L.Oxidative StressTaekwondoEffects of New Zealand Blackcurrant Extract Supplementation on Muscle Damage, Oxidative Stress, and Inflammatory Markers Following High-Intensity Training in Elite Taekwondo Athletes: A Randomized, Double-Blind TrialArticle