NUUN Energy

Nuun Energy, is the same hydration-focused Nuun you know and love – no sugars, optimal electrolyte blends, and light refreshing taste – but with added ingredients to help elevate and boost performance. In combination, the caffeine and b vitamins added into Nuun Energy help athletes to gain and sustain additional energy while participating in sport.

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Increased Alertness

It works on a number of levels. Caffeine causes changes in the Central Nervous System (CNS), by increasing your alertness, decreasing reactions; it can help the perceived effort seem less (3). Caffeine can also stimulate blood circulation and heart function (1). All of those components can help give you a competitive edge.  

Efficient Fuelin

Caffeine also theoretically helps spare glycogen. It works by elevating free-fatty acids (FFA) in the blood. This elevation helps muscles use FFA rather than glycogen (1).

Masks Perceived Effort

One study recently published looked at the effect of caffeine on aerobic and anaerobic power. The results of the study showed that individual dosage of caffeine increase aerobic output, and at the same time decrease heart rate. More evidence points to the theory that caffeine can help mask perceived effort (1).  Many other, well-conducted studies show that a moderate-to-low intake of caffeine prior to exercise can help increase performance (4).

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It’s important to note that individual results may vary when using caffeine to enhance athletic performance. It is crucial to find your personal tolerance, as it has been well studied that an overconsumption of caffeine provides no additional benefits, and may actually cause some side effects.

For those reasons it is recommended to train and let your body adapt to Nuun Energy before using in competition.


Nuun Energy contains 40 mg of caffeine (a moderate amount) about 1/3 of  a cup of coffee. The electrolytes in combination with fluids may offset some side effects of caffeine intake.

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