Sugars like sucrose and high-fructose corn syrup prevent the long-term production of energy, and for the calories in sugar to be used for energy, the body has to deplete nutrients that have already been consumed. However, studies have found that sugar doesn’t really provide bountiful amounts of long-term energy. It’s long been believed that sugar provides the body with the glucose it needs for energy. The story about this one isn’t quite as clear-cut. How much energy does it give you, and how long does it last? We’ll get to that in a bit. There’s much more, but the point is obvious caffeine is a potent energy booster.

Caffeine causes muscles to contract, giving users the impression that they can perform physical tasks with less exertion than usual.Caffeine triggers the release of adrenaline which boosts heart rate, increases blood flow, and tells the liver to release sugar into the bloodstream.Caffeine blocks the neurotransmitter adenosine, which tells the body that it’s getting sleepy.Caffeine increases the effects of two neurotransmitters: dopamine, which helps to regulate mood, and serotonin, which improves focus and motivation.But that only tells a small part of the story. It’s well known that the substance boosts the body’s metabolic rate while making its users feel more energetic and alert. CaffeineĬaffeine is the world’s most widely-consumed stimulant. Before getting to taurine and some of the other ingredients found in most energy drinks, let’s discuss the roles that caffeine, sugar and vitamins play in providing the body with fast energy.

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