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Benefits:-

1. A good energy drink provides caffeine alongside ergogenic and nootropic compounds.

The most common among these extra ingredients are B vitamins, taurine, green tea extract, and herbal extracts like yerba mate extract and guarana.

Energy drinks rocketed to popularity after an obscure local drink in Thailand was reformulated and marketed to a global audience.

That drink, of course, was Red Bull, which is a market-dominating juggernaut among energy drinks.

More recently, competition has gotten fierce among companies vying for a share of the market.

There are varying levels of evidence that each of these can enhance your energy levels

2. Caffeine has the biggest role when it comes to boosting energy

Caffeine is a stimulant, meaning it kick-starts your metabolism, increases your alertness, improve your reaction time, and increase your physical performance during exercise.

The amount of caffeine you consume is related to the strength of these effects, but as always, there can be too much of a good thing!

3. Taurine is another staple ingredient of energy drinks, but it might not be a very important one

It derives its name from the fact that it was first isolated in the liver bile of oxen in the 1800s, but it’s far more common in your body than you’d think.  It plays a critical role in the development of the nervous system and ensuring its proper function.

By including taurine in energy drinks alongside caffeine, the hope is that the energy drink will elevate your nervous system to a higher performing level than with caffeine or taurine alone.

A highly detailed study published in 2012 attempted to tease out how caffeine and taurine interact to produce the reported benefits of energy drinks (1).

As expected, caffeine had a consistent and significant beneficial effect on tasks like short term memory and reaction time. Taurine had some beneficial effects too, but even when combined with caffeine, it contributed only in a small, varied, and unpredictable way to cognitive performance.

4. B vitamins could help improve the function of your central nervous system

These play a key role in the functioning of your nervous system too.  Like with taurine, the hope is that the B vitamins will interact synergistically with the caffeine to boost your energy levels and alertness to a higher level than possible with just caffeine.

One study published in 2012 in the journal Nutrition & Metabolism found that a pre-workout supplement that combined caffeine and B-vitamins, along with a few other ingredients, did boost performance on agility and lower body muscular endurance during an exercise testing session (2).

However, it did not evaluate the role of each ingredient individually—it was compared against a true placebo, not a caffeine-only supplement.

5. B-complex vitamins could elevate physical and mental stamina

A range of B-vitamins are commonly included in energy drinks alongside the caffeine, taurine, sugar, and other popular ingredients.

Do these B-vitamins make a difference? Some research suggests that they do. A paper published in the journal Human Psychopharmacology tested the effects of a high-dose B-complex vitamin on self-reported physical stamina, mental stamina, and concentration levels over the course of a four-week study.

The researchers found that B-complex vitamin supplement was able to elevate both physical and mental stamina, as well as increase concentration.

Perception is everything when it comes to productivity, so this study provides strong evidence that the B vitamins play an important role in the performance boosting and mood elevating mechanisms of an energy drink.

A good energy drink can do more than just keep you awake. The right dose of caffeine, B-vitamins, and other ergogenic and nootropic compounds can give you a huge boost both to physical performance (think endurance, strength, and muscular power) and mental performance, in the form of better focus and concentration.