“I recently heard that a lot of products that say on the labelling they contain caffeine actually contain ‘synthetic caffeine’. What’s the difference and is one better than the other?”
Caffeine is the most widely consumed mood-altering drug in the world. It occurs naturally in the leaves, fruits and seeds of more than 60 different plant species and when extracted and purified it’s a bitter, odorless white powder. It’s a stimulant, which means that it speeds up the central nervous system, making the user feel more alert and less tired. The main plant-based or ‘natural’ sources of caffeine are coffee, kola nuts, tea, and chocolate.
It’s believed that ‘synthetic caffeine’ was first developed by the Nazis during World War II. In an effort to keep their armed forces supplied with stimulants, German scientists experimented with a number of substances, including methamphetamine. It was in the area of synthetic caffeine, however, that they had their greatest success. By the early 1950s American companies had begun to mass produce the stimulant, primarily for use in soft drinks.
The two substances are chemically identical but because one can be produced in a laboratory, it’s cheaper and far more readily available. That’s why you’re more likely to see the synthetic version in mass produced products such as soft drinks. It’s also found in chewing gum, cosmetics and dietary products. It’s typically produced at much higher concentrations than natural caffeine and is absorbed much faster by the body. This, of course, means that it can have potentially more intense effects. Most importantly, a faster absorption rate may result in a nearly instant energy boost. Although there continues to be debate in the area, there have been studies that suggest that this faster synthetic caffeine boost is likely to be followed by a more dramatic crash.
What might surprise many is that manufacturers don’t have to let people buying their product know whether the caffeine is natural or synthetic. When you read the label of cans of Coca Cola or any other soft drink, it just says ‘caffeine’.
Are the chemicals used to make these products likely to be dangerous or harmful when consumed in small quantities? No, of course not, but it would be nice to know what you’re putting into your body when you drink or eat it – labelling is meant to do that but when it comes to caffeine, that’s certainly not happening …
First published: April 2025
