Randomized Trialmoderate evidence
Effect of Lactiplantibacillus plantarum GKK1 Supplementation on Exercise-Induced Fatigue, Muscle Damage, and Recovery in Healthy Men: A Randomized, Double-Blind, Placebo-Controlled Trial.
Nutrients·August 25, 2026·PMID 42738954
Why it mattersExercise-induced muscle damage and fatigue can impair recovery and performance, especially in individuals unaccustomed to intense exercise. This trial provides human evidence that a specific probiotic strain may support functional recovery and modulate biochemical responses after damaging exercise, offering a potential nutritional adjunct for active individuals and athletes.

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