SuppVersity - Nutrition and Exercise Science for Everyone

Post-Workout High Isoleucine AA+CHO Decreases Glucose Spikes, But Impairs Musclular Glyocogen Resynthesis - Reason Enough to Skip Amino Acids? If you put any faith into the promises of the supplement industry, amino acid supplements are the solution to all your problems - including those you haven't even known about, yet. Against that background it's always interesting if scientists study the real world effects of amino acid supplements in a realistic scenario like after strenuous exercise. In their latest study Wang and colleagues from the University of Texas at Austin and the Shanghai Research Institute of Sports Science did just that: They studied the effects isoleucine and four additional amino acids, on blood glucose homeostasis and glycogen synthesis after strenuous exercise. Learn more about amino acid and BCAA supplements at the SuppVersity Glutamine Helps W/ Diabetes Whey + Casein Beat GLU + BCAA Alanyl-Glutamine is it any good? GLU for Glycog...

Are there good and bad fructose sources according to the amount, concentration, and availability of the super-sweet super-cheap sweetener? Believe it or not: Fructose was not send by the devil to expel us from the gluttonous paradise of all-you-can-eat buffets. Rather than that, fructose is an important nutrient found naturally in fruit and a component of most healthy diets of which the following paragraphs will highlight that it plays a very important role in normal sugar metabolism. In contrast to the majority of the recently published literature on fructose, of which Maren R. Laughlin from the NIH writes in a recent paper that it is "not relevant for the purpose of understanding the metabolism of low levels of fructose eaten as a minor fraction of the carbohydrate found in a well-balanced meal", the article at hand will not deal with the ill-consequences of isolated fructose consumption, as they would never occur if people consumed a whole foods diet. Learn more a...

"Done,... where is my post-workout coffee?" - Post workout caffeine / chlorogenic acid - good or bad idea? I know it's kind of late to post an article like this months after the ISSN conference, but I recently hit on an overview of the poster presentations and noticed that I did actually miss a couple of interesting studies. Don't worry, I won't be addressing a couple of them in the weeks to come in some detail. Not all are really news-worthy, but aside from today's item on caffeine and chlorogenic acid , there were also posters on nutrient timing , different forms of protein , commercially available supplements and other stuff that's all classic "SuppVersity fodder"? Chlorogenic acid? Isn't that Ozzy's green coffee bean stuff? You are correct, but could actually read about it here at the SuppVersity way before it was on Dr. Oz . Plus, I still believe that there is something wrong with the corresponding study and do still hav...

The bigger the choice, the harder it is to choose. If you had to pick just one, go for the concentrate, if you want to afford two, get an isolate or hydrolysate and a casein protein. "Whey is still the way to go." I believe I wrote, or at least thought just that only a couple of days ago, when I wrote about the wheat gluten hydrolysate in the last installment of the SuppVersity Science Round Up Seconds ( click here to read all previous installments). Unfortunately, there is not just one way... ah, pardon me, I do of course mean "whey", there are many! And in order to completely confuse their customers supplement companies will spike their concentrates, isolates and even hydrolysates with free form amino acids, or - which is even more confusing - advertise their BCAA and EAA products as being made from whey protein. I mean, who cares if the damn molecules are unbound and indistinguishable, anyway? But let's get to the point, a soon to be published study fr...