Does Glutamine Actually Do Anything?
Short answer: Glutamine is the most abundant amino acid in your body and a supplement-shelf bestseller. But for muscle growth or faster recovery in healthy, well-fed people who train, the...
Betaine (TMG): The Pre-Workout Ingredient Nobod...
Short answer: Betaine, also called trimethylglycine or TMG, is a compound originally from beets that has been studied for power output and muscle endurance. Research generally uses about 2.5 grams...
Stim-Free Pre-Workout: A Pump Without the Stimu...
Short answer: A stim-free pre-workout leaves out the caffeine and leans on pump and endurance ingredients instead, mainly citrulline, betaine, taurine, and electrolytes. You still get better blood flow and...
Taurine in Your Pre-Workout: What It Actually Does
Short answer: Taurine is an amino acid your body already makes and stores in muscle and the brain. In exercise research it has been studied for endurance, focus, and cell...
What a "Proprietary Blend" Actually Hides
If you have ever turned a supplement tub around and seen "Proprietary Blend 8,000 mg" with a list of ingredients under it and no individual amounts, you have met the...
Is It Bad to Take Pre-Workout Every Day?
For most healthy adults, taking pre-workout every day is not bad on its own. The real question is caffeine: how much you get across the whole day, and whether your...