May 2014

DuPont drink aids amino acid delivery

A randomized double-blind trial published in April in the Journal of Applied Physiology found that drinking a protein blend of soy, casein, and whey after resistance workouts extends duration of amino acid delivery to the vastus lateralis muscle compared with a single-source protein drink.

Investigators at University of Texas Medical Branch in Galveston randomized 16 healthy young adults (aged 19-30 years) to consume a soy-dairy protein drink (25% isolated soy protein, 50% caseinate, 25% whey protein isolate) or a drink with a single protein source (whey protein isolate) one hour after resistance exercise and took biopsies from participants’ vastus lateralis muscles at baseline and up to five hours after exercise.

The blended drink prolonged amino acid delivery to muscle for an hour longer and increased amino acid net balance across the leg muscle during early postexercise recovery compared with the single-source protein drink.

DuPont Nutrition & Health, which makes the multiprotein drink, collaborated with Texas researchers on the trial.

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.