What is L-Citrulline and What Does it Do?
WHY IS L-CITRULLINE IMPORTANT PRE WORKOUT?
L-Citrulline is an important part of any pre-workout formula because it is used by the body to Create Arginine and Arginine helps stimulate Nitric Oxide production. More Nitric Oxide improves blood flow and increases the amount of oxygen & nutrients going to muscles. [1,2]
HOW MUCH L-CITRULLINE?
Our Favorite Pre-Workout, Action Nutrition's BOLT Extreme Energy, contains 3 full grams of the Key Pre Workout L-Citrulline.
WHY IS L-CITRULLINE SUPERIOR TO DIRECT ARGININE SUPPLEMENTATION?
L-Citrulline is digested much better than Arginine and supplementing with L-Citrulline pre-workout turns out to be a better way to increase blood arginine levels than taking arginine itself. L-Citrulline is quickly absorbed into the bloodstream, to immediately aid in Nitric Oxide production, while Arginine endures a much lengthier, more destructive trip through the gut and intestines, resulting in less Nitric Oxide.
L-CITRULLINE'S OTHER BENEFITS...
In addition to increasing Nitric Oxide, L-Citrulline has also been shown to aid in removing ammonia from the bloodstream, a compound known to cause training-related intra workout and post workout fatigue.
FOR SERIOUS LIFTERS ONLY!
Taking L-Citrulline pre workout is for True Lifter’s only. While supplementing with L-Citrulline increases Nitric Oxide production and Oxygen Consumption while Decreasing Workout Fatigue, L-Citrulline has also been shown to negatively impact running times in certain events. Who needs cardio anyway? 
1. Gonzalez, A. M., & Trexler, E. T. (2020). Effects of Citrulline Supplementation on Exercise Performance in Humans: A Review of the Current Literature. The Journal of Strength & Conditioning Research, 34(5), 1480-1495.
2. Campos, H. O., Drummond, L. R., Rodrigues, Q. T., Machado, F. S., Pires, W., Wanner, S. P., & Coimbra, C. C. (2018). Nitrate supplementation improves physical performance specifically in non-athletes during prolonged open-ended tests: a systematic review and meta-analysis. British Journal of Nutrition, 119(6), 636-657.
3. Schwedhelm, E., Maas, R., Freese, R., Jung, D., Lukacs, Z., Jambrecina, A., ... & Böger, R. H. (2008). Pharmacokinetic and pharmacodynamic properties of oral L‐citrulline and L‐arginine: impact on nitric oxide metabolism. British journal of Clinical Pharmacology, 65(1), 51-59.
4. Hickner, R. C., Tanner, C. J., Evans, C. A., Clark, P. D., Haddock, A., Fortune, C., ... & Mccammon, M. (2006). L-citrulline reduces time to exhaustion and insulin response to a graded exercise test. Medicine and Science in Sports and Exercise, 38(4), 660-666.