Over the past few decades, energy drinks have transformed from products meant for athletes to a beverage that is consumed by millions globally to help them with fatigue, focus, and performance.

Often sold in flashy cans with catchy slogans, these drinks may seem harmless, but when consumed in excess, they can shift from a quick boost to a serious health hazard.  "People claim they take energy drinks for a number of reasons.

Some take them to boost their energy levels instantly, others for weight loss, increasing their mental alertness, or increasing physical performance, just to mention a few,"  says Kepha Nanyumba, who is a consultant nutritionist in Nairobi.

You see, according to Kepha, the key ingredient is caffeine, which, if taken in excess, might result in a number of health risks.