Pre JYM is one of the most highly rated pre-workout supplements on the market today, and it’s no surprise why.
It boasts a long list of active ingredients, it contains no proprietary blends, and its formulation appears to be backed by sound scientific research.
It’s also quite similar to my pre-workout Pulse because both contain citrulline malate, betaine, and beta-alanine, so many people wonder how the two compare.
So, how good is Pre JYM? Well, the short story is this:
Pre JYM’s formulation is better than many other pre-workouts on the market. It contains several high-quality ingredients at clinically effective levels and will likely enhance your physical performance and mental alertness.
That said, Pre JYM also contains ingredients that don’t make sense given the formulation, as well as ingredients that are included at suboptimal dosages.
Pulse, on the other hand, contains fewer ingredients, but all are chosen for good reason and included at clinically effective levels. Thus, it’s likely to deliver more bottom-line benefits and results.
Let’s find out why.
Lastly, if you want to support the show, please drop a quick review of it over on iTunes. It really helps!
6:15 – What does science have to say about Pre-Jym?
6:42 – What is Creatine HCL?
7:49 – What is the clinically effective dosage of creatine?
9:27 – What is beta alanine?
10:04 – What is the clinically effective dosage of creatine?
10:32 – What is betaine?
10:59 – What is the clinically effective dosage of betaine?
11:17 – What is taurine?
12:13 – What is n-acetyl cysteine?
13:11 – What is the clinically effective dosage of n-acetyl cysteine?
13:44 – What is alpha gpc?
14:21 – What is the clinically effective dosage of alpha gpc?
15:22 – What is citrulline malate?
16:21 – What is the clinically effective dosage of citrulline malate?
16:31 – What is beetroot extract?
17:48 – What is the clinically effective dosage of beetroot extract?
18:38 – What is branched chain amino acids?
22:08 – What is tyrosine?
23:16 – What is the clinically effective dosage of tyrosine?
23:47 – What is caffeine?
24:06 – What is the clinically effective dosage of caffeine?
24:27 – What is huperzine a?
26:40 – What is the clinically effective dosage of huperzine a?
27:29 – What is black pepper extract?
28:39 – What does science have to say about Pulse?
32:00 – What is l-ornithine?
32:45 – What is the clinically effective dosage of l-ornithine?
33:17 – What is l-theanine?
What did you think of this episode? Have anything else to share? Let me know in the comments below!
+ Scientific References
- Desilets, A. R., Gickas, J. J., & Dunican, K. C. (2009). Role of huperzine A in the treatment of alzheimer’s disease. In Annals of Pharmacotherapy (Vol. 43, Issue 3, pp. 514–518). https://doi.org/10.1345/aph.1L402
- Xing, S.-H., Zhu, C.-X., Zhang, R., & An, L. (2014). Huperzine a in the treatment of Alzheimer’s disease and vascular dementia: a meta-analysis. Evidence-Based Complementary and Alternative Medicine : ECAM, 2014, 363985. https://doi.org/10.1155/2014/363985
- Ganio, M. S., Klau, J. F., Casa, D. J., Armstrong, L. E., & Maresh, C. M. (2009). Effect of caffeine on sport-specific endurance performance: A systematic review. In Journal of Strength and Conditioning Research (Vol. 23, Issue 1, pp. 315–324). J Strength Cond Res. https://doi.org/10.1519/JSC.0b013e31818b979a
- Nehlig, A. (2010). Is caffeine a cognitive enhancer? Journal of Alzheimer’s Disease, 20(SUPPL.1). https://doi.org/10.3233/JAD-2010-091315
- Jacobson, B. H., Weber, M. D., Claypool, L., & Hunt, L. E. (1992). Effect of caffeine on maximal strength and power in élite male athletes. British Journal of Sports Medicine, 26(4), 276–280. https://doi.org/10.1136/bjsm.26.4.276
- Warren, G. L., Park, N. D., Maresca, R. D., McKibans, K. I., & Millard-Stafford, M. L. (2010). Effect of caffeine ingestion on muscular strength and endurance: A meta-analysis. Medicine and Science in Sports and Exercise, 42(7), 1375–1387. https://doi.org/10.1249/MSS.0b013e3181cabbd8
- Deijen, J. B., Wientjes, C. J. E., Vullinghs, H. F. M., Cloin, P. A., & Langefeld, J. J. (1999). Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course. Brain Research Bulletin, 48(2), 203–209. https://doi.org/10.1016/S0361-9230(98)00163-4
- Tumilty, L., Davison, G., Beckmann, M., & Thatcher, R. (2014). Failure of oral tyrosine supplementation to improve exercise performance in the heat. Medicine and Science in Sports and Exercise, 46(7), 1417–1425. https://doi.org/10.1249/MSS.0000000000000243
- Banderet, L. E., & Lieberman, H. R. (1989). Treatment with tyrosine, a neurotransmitter precursor, reduces environmental stress in humans. Brain Research Bulletin, 22(4), 759–762. https://doi.org/10.1016/0361-9230(89)90096-8
- Chinevere, T. D., Sawyer, R. D., Creer, A. R., Conlee, R. K., & Parcell, A. C. (2002). Effects of L-tyrosine and carbohydrate ingestion on endurance exercise performance. Journal of Applied Physiology, 93(5), 1590–1597. https://doi.org/10.1152/japplphysiol.00625.2001
- Mirza, K. A., Pereira, S. L., Voss, A. C., & Tisdale, M. J. (2014). Comparison of the anticatabolic effects of leucine and Ca-β-hydroxy-β-methylbutyrate in experimental models of cancer cachexia. Nutrition, 30(7–8), 807–813. https://doi.org/10.1016/j.nut.2013.11.012
- Pitkänen, H. T., Nykänen, T., Knuutinen, J., Lahti, K., Keinänen, O., Alen, M., Komi, P. V., & Mero, A. A. (2003). Free amino acid pool and muscle protein balance after resistance exercise. Medicine and Science in Sports and Exercise, 35(5), 784–792. https://doi.org/10.1249/01.MSS.0000064934.51751.F9
- Hulmi, J. J., Lockwood, C. M., & Stout, J. R. (2010). Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein. In Nutrition and Metabolism (Vol. 7). Nutr Metab (Lond). https://doi.org/10.1186/1743-7075-7-51
- Blomstrand, E., Eliasson, J., Karlssonr, H. K. R., & Köhnke, R. (2006). Branched-chain amino acids activate key enzymes in protein synthesis after physical exercise. Journal of Nutrition, 136(1). https://doi.org/10.1093/jn/136.1.269s
- Meeusen, R., & Watson, P. (2007). Amino acids and the brain: do they play a role in “central fatigue”? International Journal of Sport Nutrition and Exercise Metabolism, 17 Suppl. https://doi.org/10.1123/ijsnem.17.s1.s37
- Kimball, S. R., & Jefferson, L. S. (2006). Signaling pathways and molecular mechanisms through which branched-chain amino acids mediate translational control of protein synthesis. Journal of Nutrition, 136(1). https://doi.org/10.1093/jn/136.1.227s
- Fulford, J., Winyard, P. G., Vanhatalo, A., Bailey, S. J., Blackwell, J. R., & Jones, A. M. (2013). Influence of dietary nitrate supplementation on human skeletal muscle metabolism and force production during maximum voluntary contractions. Pflugers Archiv European Journal of Physiology, 465(4), 517–528. https://doi.org/10.1007/s00424-013-1220-5
- Larsen, F. J., Weitzberg, E., Lundberg, J. O., & Ekblom, B. (2007). Effects of dietary nitrate on oxygen cost during exercise. Acta Physiologica, 191(1), 59–66. https://doi.org/10.1111/j.1748-1716.2007.01713.x
- Lansley, K. E., Winyard, P. G., Bailey, S. J., Vanhatalo, A., Wilkerson, D. P., Blackwell, J. R., Gilchrist, M., Benjamin, N., & Jones, A. M. (2011). Acute dietary nitrate supplementation improves cycling time trial performance. Medicine and Science in Sports and Exercise, 43(6), 1125–1131. https://doi.org/10.1249/MSS.0b013e31821597b4
- Murphy, M., Eliot, K., Heuertz, R. M., & Weiss, E. (2012). Whole Beetroot Consumption Acutely Improves Running Performance. Journal of the Academy of Nutrition and Dietetics, 112(4), 548–552. https://doi.org/10.1016/j.jand.2011.12.002
- Bendahan, D., Mattei, J. P., Ghattas, B., Confort-Gouny, S., Le Guern, M. E., & Cozzone, P. J. (2002). Citrulline/malate promotes aerobic energy production in human exercising muscle. British Journal of Sports Medicine, 36(4), 282–289. https://doi.org/10.1136/bjsm.36.4.282
- Pérez-Guisado, J., & Jakeman, P. M. (2010). Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness. Journal of Strength and Conditioning Research, 24(5), 1215–1222. https://doi.org/10.1519/JSC.0b013e3181cb28e0
- Moreno Moreno, M. D. J. (2003). Cognitive improvement in mild to moderate Alzheimer’s dementia after treatment with the acetylcholine precursor choline alfoscerate: A multicenter, double-blind, randomized, placebo-controlled trial. Clinical Therapeutics, 25(1), 178–193. https://doi.org/10.1016/S0149-2918(03)90023-3
- Ziegenfuss, T., Landis, J., & Hofheins, J. (2008). Acute supplementation with alpha-glycerylphosphorylcholine augments growth hormone response to, and peak force production during, resistance exercise. Journal of the International Society of Sports Nutrition, 5(S1), 1–2. https://doi.org/10.1186/1550-2783-5-s1-p15
- Cobley, J. N., McGlory, C., Morton, J. P., & Close, G. L. (2011). N-Acetylcysteine’s attenuation of fatigue after repeated bouts of intermittent exercise: practical implications for tournament situations. International Journal of Sport Nutrition and Exercise Metabolism, 21(6), 451–461. https://doi.org/10.1123/ijsnem.21.6.451
- Kasperczyk, S., Dobrakowski, M., Kasperczyk, A., Ostałowska, A., & Birkner, E. (2013). The administration of N-acetylcysteine reduces oxidative stress and regulates glutathione metabolism in the blood cells of workers exposed to lead. Clinical Toxicology, 51(6), 480–486. https://doi.org/10.3109/15563650.2013.802797
- da Silva, L. A., Tromm, C. B., Bom, K. F., Mariano, I., Pozzi, B., da Rosa, G. L., Tuon, T., da Luz, G., Vuolo, F., Petronilho, F., Cassiano, W., De Souza, C. T., & Pinho, R. A. (2014). Effects of taurine supplementation following eccentric exercise in young adults. Applied Physiology, Nutrition and Metabolism, 39(1), 38–46. https://doi.org/10.1139/apnm-2012-0229
- Schwab, U., Törrönen, A., Toppinen, L., Alfthan, G., Saarinen, M., Aro, A., & Uusitupa, M. (2002). Betaine supplementation decreases plasma homocysteine concentrations but does not affect body weight, body composition, or resting energy expenditure in human subjects. American Journal of Clinical Nutrition, 76(5), 961–967. https://doi.org/10.1093/ajcn/76.5.961
- Trepanowski, J. F., Farney, T. M., McCarthy, C. G., Schilling, B. K., Craig, S. A., & Bloomer, R. J. (2011). The effects of chronic betaine supplementation on exercise performance, skeletal muscle oxygen saturation, and associated biochemical parameters in resistance trained men. Journal of Strength and Conditioning Research, 25(12), 3461–3471. https://doi.org/10.1519/JSC.0b013e318217d48d
- Lee, E. C., Maresh, C. M., Kraemer, W. J., Yamamoto, L. M., Hatfield, D. L., Bailey, B. L., Armstrong, L. E., Volek, J. S., McDermott, B. P., & Craig, S. A. S. (2010). Ergogenic effects of betaine supplementation on strength and power performance. Journal of the International Society of Sports Nutrition, 7. https://doi.org/10.1186/1550-2783-7-27
- Culbertson, J. Y., Kreider, R. B., Greenwood, M., & Cooke, M. (2010). Effects of Beta-alanine on muscle carnosine and exercise performance: A review of the current literature. In Nutrients (Vol. 2, Issue 1, pp. 75–98). MDPI AG. https://doi.org/10.3390/nu2010075
- Smith, A. E., Walter, A. A., Graef, J. L., Kendall, K. L., Moon, J. R., Lockwood, C. M., Fukuda, D. H., Beck, T. W., Cramer, J. T., & Stout, J. R. (2009). Effects of β-alanine supplementation and high-intensity interval training on endurance performance and body composition in men; a double-blind trial. Journal of the International Society of Sports Nutrition, 6. https://doi.org/10.1186/1550-2783-6-5
- Derave, W., Özdemir, M. S., Harris, R. C., Pottier, A., Reyngoudt, H., Koppo, K., Wise, J. A., & Achten, E. (2007). β-Alanine supplementation augments muscle carnosine content and attenuates fatigue during repeated isokinetic contraction bouts in trained sprinters. Journal of Applied Physiology, 103(5), 1736–1743. https://doi.org/10.1152/japplphysiol.00397.2007
- Bemben, M. G., & Lamont, H. S. (2005). Creatine supplementation and exercise performance: Recent findings. In Sports Medicine (Vol. 35, Issue 2, pp. 107–125). Sports Med. https://doi.org/10.2165/00007256-200535020-00002