Larger studies are needed to evaluate the safety of the noncaffeine ingredients contained in energy drinks, they conclude. In 2017, manufacturers were modifying the composition of energy drinks for reduced or no sugar content and lower calories, caffeine content, "clean" labels to reflect the use of organic ingredients, exotic flavors, and ingredients that may affect mood. A coffee break is an opportunity for relaxation and socialization that just so happens to also power productivity. This is because it is hot and you have to wait for it to cool down a bit before you can drink it and receive more energy. The good news is that there are products on the market that contain absolutely no added sugar and can still have the ability to boost your energy.

Coffee energy drinks have gained popularity in recent years as a convenient and quick way to boost energy levels. Its origins date back to 1949, when a Chicago businessman named William Mark Swartz was urged by co-workers to formulate a soft drink fortified with vitamins as an alternative to sugar sodas full of empty calories. However, for anyone who likes to add all the fixings like cream, sugar, and flavoring, the number of calories will quickly add up.

BSDA members have a voluntary Code of Practice agreeing not to market or promote energy drinks to under 16s.

An ECG change known as QTc prolongation and sometimes associated with life-threatening irregularities in the heartbeat was seen after drinking the energy drink, but not after drinking the caffeine beverage, the study team reports. It also states that high caffeine soft drinks should not be promoted or marketed to those aged under 16.

In the UK, Lucozade was originally introduced in 1927 by a Newcastle pharmacist, William Walker Hunter, as a hospital drink for "aiding the recovery;" in the early 1980s, it was promoted as a drink for "replenishing lost energy. Every sip delivers a bold and invigorating coffee experience, thanks to the high-quality cold-pressed espresso. The marketing of energy shots generally focuses on their convenience and availability as a low-calorie "instant" energy drink that can be taken in one swallow (or "shot"), as opposed to energy drinks that encourage users to drink an entire can, which may contain 250 calories or more.