For children, these reactions should not be in balance. In a child, the anabolic reactions have to be greater than the catabolic. Boys start their growth spurt after girls. That’s why when they are in 7th or 8th grade, the girls are still taller than the boys. The boys change a couple years after the girls. Guys may gain 2-3 inches in that growth spurt between 14-17 years of age. During that growing period they will eat up all the food in your refrigerator. They are growing like crazy during that time. But what happens to both boys and girls at 18-19 is that if they keep eating the same way, they won’t grow taller anymore but only wider. This is the phenomena everybody notices.
A lot of it really depends on the amount of caffeine in the drink. If you read my comments below, you’ll see how much caffeine it takes to increase your cortisol by 30%. You have to remember that supplement companies, in general, don’t care about your health or even your performance. What they care about is that you “feel” something when using their product and therefore you “believe” it’s doing some good so that you come back and buy their product again and again. That’s not to say that caffeine doesn’t have performance benefits because the literature is very clear that it does, but it’s a double-edged sword. So you have to weigh the pros and the cons with it and decide for yourself if it’s worth it based on your own individual performance and body transformation goals.