Sugar water is less expensive than the packaged “energy drinks” and is more or less the same. Base - Energy drinks primarily consist of water and sugar, typically in the form of corn syrup, sucrose, or some other sweetener. The amount of sugar in these drinks is about the same as that in sodas and fruit drinks-about 25 to 40 grams per 8-ounce serving. That's equal to 5 to 8 teaspoons of sugar, or 100 to 160 calories per cup-about twice the carbohydrate content of most sport drinks. So this actually makes energy drinks a poor choice to quaff before or during a workout, because that much sugar hampers fluid absorption, giving you that sloshing feeling in your stomach. Many energy drinks also come in mega-sized bottles containing two or more servings, which makes it easy to gulp down loads of excess calories. Stimulants: Many energy drinks owe their "buzz" to a wallop of caffeine-often more than 100 milligrams, which is more than twice the caffeine in a can of cola or equal to the caffeine in a cup of coffee. Guarana, an herbal source of caffeine, is also a popular additive. Both ingredients can increase your alertness and reaction time, but they can also boost your heart rate and blood pressure. And since caffeine acts as a diuretic (i.e. it increases urine production), you risk dehydration if you take in excessive amounts. But because manufacturers aren't required to list the quantity of caffeine or guarana in their drinks, judging your risk may be difficult. Many energy-drink fans claim taurine is what gives them a buzz. Taurine is an amino acid, one of the 20 that form the building blocks of protein. While taurine plays a vital role in certain bodily processes such as the digestion of fat, supplemental taurine has not proven beneficial. And no science shows that taurine can increase energy. Vitamins and minerals: Energy drinks typically include B vitamins such as thiamine, riboflavin, niacin, and vitamin B6. These play a major role in fat burning, and also release energy from carbohydrates during exercise. What's more, some studies show that strenuous exercise programs, such as daily running, may slightly increase your need for these nutrients. But a healthful diet is still your best bet for meeting this increased need, because there's no evidence that a beverage loaded with B vitamins offers any special powers. And, in this case, more is not better; excess B vitamins are quickly excreted in your urine. Some energy drinks claim to enhance the body's immune system with added zinc. Sure, we've all probably taken a zinc lozenge or two to try to knock out a cold. (Research shows that zinc in this form can be effective.) But no evidence shows that consuming extra zinc in a drink can boost your immunity. Chromium, a mineral that plays a key role in insulin function, is often added to energy drinks that claim to promote leanness. Yet numerous studies show that supplemental chromium does not aid in weight loss or muscle building. http://www.sandiego.org/article/Visitors/94 Edit - If you read this again you'll see that not only did I answer the question I gave you the general "recipe" for packaged "energy drinks". Sugar, Water, Corn Syrup, Multi vitamins and caffeine, all available at your local supermarket. That's what you asked for.

Redline, im pretty sure you even have to be 18 to purchase it.

A friend of mine who is an energy drink addict likes Red Bull the best.

XS because it has no calories and tons of B12

i think red bull in a good drink