In theory, the popular
"pre-workout" beverages currently taking the health and fitness
community by storm sound pretty awesome: You down these drinks to up your
energy so you can own that gym sesh—and maybe even burn a few extra calories in
the process.
These drinks, like Performix ION v2Xa, Cellucor C4, and Optimum Nutrition
Gold Standard Pre-Workout are often sold as powder mixes that are stirred into
water and consumed about a half hour before exercising. Though it varies by
brand, some drinks contain vitamin C, B vitamins, and supplements like amino
acids such as beta-alanine, as well as creatine, and caffeine. These
supplements are designed to help your muscles withstand fatigue and increase
strength. But are they the x-factor in weight loss?
