Non-Stimulant Pre-Workout Supplements for Exercise Performance

https://www.news-medical.net/health/Beyond-caffeine-Pre-workout-ingredients-for-energy-endurance-and-performance.aspx Caffeine is an established ergogenic aid that improves exercise performance by delaying fatigue and increasing alertness. Despite its efficacy, limitations such as tolerance, adverse effects, and interindividual variability have driven growing interest in non-stimulant alternatives. Caffeine Use in Sports: Benefits, Tolerance, and Limitations Researchers estimate that 70 % of young adults consume at least one nutritional supplement, with 30 % reporting regular use of pre-workout energy products. Modern sports science defines pre-workout supplements as mixtures consumed before exercise to increase the availability of energy substrates, thereby creating physiological conditions that favor endurance and muscle mass gain.