Vitamin B6 (Pyridoxine) in Sports: Science, Practical Use, and How to Optimize Performance Vitamin B6 (Pyridoxine) in Sports: Science, Practical Use, and How to Optimize Performance Detailed evidence-based guide for athletes, coaches, and fitness-minded people. Key Roles Evidence & Studies Food Sources Dosage & Safety Practical Protocol FAQ Introduction Vitamin B6 (collective name for pyridoxine, pyridoxal, pyridoxamine and their phosphorylated forms; active coenzyme = pyridoxal 5'-phosphate — PLP) is a water-soluble B vitamin that participates in more than 100 enzymatic reactions in human metabolism. For athletes and active people, B6's roles in amino-acid metabolism, glycogen utilization, neurotransmitter synthesis, and hemoglobin production make it especially relevant to performance, recovery, and resilience. This article explains those mechanisms, summarizes the scientific e...