Reaction Times Outshine Those Where No Hydration Was Given

New York City, NY  – Taking Sustamine® L-Alanyl-L-Glutamine after endurance exercise increases athletes’ reaction times and cognitive function when compared to no hydration, according to a study published in the European Journal of Sport Science.1

Twelve male athletes performed four endurance trials of various lengths. One trial allowed no hydration, with another consisting of consumption of an energy drink. The other two trials included low and high doses of Sustamine® in energy drinks.

Participants were then given a reaction time test where they had to press buttons as quickly as possible when lit up with either a hand or foot. With no hydration, researchers found athletes’ reaction time was actually negatively affected while those taking Sustamine® saw a noticeably higher number of correct hits.

For cognitive tests, participants were required to subtract the number 7 from a random four-digit number. The number of correct answers was recorded. Non-hydrated subjects had correct answers as high as 5.02; those who ingested Sustamine® had correct answers as high as 5.96 to 7.3.

To view the entire study, visit

Sustamine® is a dipeptide of glutamine that provides several substantial benefits such as enhanced recovery, immune system support, and increased metabolic rate. On top of these benefits, research suggests that Sustamine® is absorbed more than 240 percent better than standard L-glutamine. This means you get results while having to use less.2

1) Gabriel J. Pruna, Jay R. Hoffman, William P. McCormack, Adam R. Jajtner, Jeremy R. Townsend, Jonathan D. Bohner, Michael B. La Monica, Adam J. Wells, Jeffrey R. Stout, Maren S. Fragala, David H. Fukuda (2014). Effect of acute L-Alanyl-L-Glutamine and electrolyte ingestion on cognitive function and reaction time following endurance exercise. Eur J Sport Sci 2014 Oct 16:1-8. Epub 2014 Oct 16. DOI:10.1080/17461391.2014.969325

2) Harris, RC, et al., NBH: L-glutamine absorption is enhanced after ingestion of L-alanylglutamine compared with the free amino acid or wheat protein. Nutr Res 2012, doi:10.1016/j.nutres.2013.02.003.

About Sustamine
Sustamine® L-Alanyl-L-Glutamine is a stable dipeptide of L-Alanine and L-Glutamine. Sustamine is more easily absorbed by the body than complex protein molecules. This makes Sustamine a highly effective ingredient for hydration, endurance and recovery.* Vegetarian, allergen-free and the only GRAS L-Alanyl-L-Glutamine, Sustamine is also tasteless, odorless, and stable in liquids.

Sustamine is an ingredient that works on multiple levels to help rehydrate the body and sustain energy levels during exertion. Sustamine combines L-Glutamine (the most important amino acid for stimulating muscle protein synthesis) and L-Arginine (an amino acid needed for rebuilding your body’s glycogen stores). Sustamine enhances performance and recovery in three primary ways. It helps:
• Replace lost electrolytes and fluids
• Repair damaged muscle proteins
• Refill the body’s energy stores

Find more information about Sustamine HERE.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

About Kyowa Hakko USA
Kyowa Hakko USA is the North American sales office for Kyowa Hakko Bio Co. Ltd., an international health ingredients manufacturer and world leader in the development, manufacturing and marketing of pharmaceuticals, nutraceuticals and food products. Kyowa is the maker of branded ingredients including Cognizin® Citicoline, Pantesin® Pantethine, Setria® Glutathione, as well as Sustamine® L-Alanyl-L-Glutamine. For more information visit