Are Caffeine Tablets Safe?

Are Caffeine Tablets Safe?

In short, yes…but it’s a little more complex than that.

Caffeine is one of those supplements which gets a bad rap from some, and is praised as a saviour by others. The truth is, it’s different for everyone. Some people react well to caffeine, it perks them up, helps them focus. Other people, not so much, they get nervous headaches, shakes and all sorts of unpleasant side effects.

So, if you’ve ever wondered whether it’s safe to take caffeine tablets or caffeine supplements, rest assured that it is, as long as you’re responsible. Should you take caffeine tablets? That depends.


What does caffeine do?

Caffeine works by mimicking a chemical called adenosine. Throughout the day, adenosine builds up in your brain and when it reaches a certain point, you get sleepy. Caffeine binds to the adenosine receptors in your brain, and stops them from processing actual adenosine. As a result, you delay that sleepy feeling.


That doesn’t mean you can go on forever without sleep. Eventually, you’ll develop a resistance to caffeine. That’s why people who drink a lot of coffee, tend to really, really drink a lot of coffee, and why tapering their caffeine intake can be such a miserable experience.


How much caffeine is in one tablet?

Our myvitamins caffeine tablets contains 200mg of caffeine per tablet. That’s about the same as two strong espresso coffees. It’s a lot, which is why we recommend no more than 1-2 a day. The most caffeine you’ll find in a regular coffee, is about 125-140 mg. Instant coffee contains about 90 mg of caffeine per serving.

How long do the effects of caffeine last?

That really depends on you. In some people, the half-life (the amount of time it takes for the body to eliminate half the caffeine) is about 5 to 6 hours. So, if you take a caffeine tablet at 9:00 AM, half of it could still be in your system at 7:00 PM.

What are the benefits and side-effects of caffeine?

Most of caffeine’s benefits come from its ability to raise awareness, alertness and concentration. It focuses the mind, so if you’ve got a thousand emails to power through, a caffeine tablet half an hour before might be a good idea.


Caffeine is also known to benefit sporting performance and weight loss potential. A study published in the International Journal Of Sports Nutrition and Exercise Metabolism found that taking caffeine before a work-out burnt 15% more calories for up to 3 hours after exercise than a placebo.   
Don’t ever use caffeine as a replacement for rest and sleep, however. Caffeine can become mildly addictive, and if you let it dictate how you work and when you sleep, that’s a slippery slope. Bottom line: Be responsible with your caffeine intake, know your limits and you’ll be able to reap all the amazing health benefits. 


Get your caffeine tablets here, or browse our selection of beanie’s  flavoured coffee for a warming way to enjoy your caffeine kick.

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Charlotte Cliffe

Charlotte Cliffe

Resident Nutritionist (ANutr)

Qualified nutritionist, health blogger and marketing executive who loves festivals and eating kiwi with the skin on...

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