This is Proven Science Nutrition’s evidence-based blog for everyday gym-goers and elite athletes. We provide clear, practical, and clinically-backed advice.
L-citrulline molecule next to a female athlete. If you've ever looked at the ingredient label of a quality pre-workout supplement, you've probably seen L-citrulline listed prominently. Unlike many ingredients in the sports nutrition industry that rely heavily on marketing claims, L-citrulline is supported by decades of scientific research. In fact, L-citrulline has become one of the most extensively studied supplements for improving exercise performance, enhancing blood flow,
