How Long Do Energy Drinks Last? (Surprising)

Posted by Charles Gregory on

Tired of downing an energy drink expecting to have a burst of energy that lasts all day, only to feel tired and sluggish just a few ours later?

I was too - and that's why I set out on a quest to find a morning energy supplement that not only lasted all day without the crash, but also gave your brain/body everything they need to get sh*t done. 

That's the story of Early Bird - more on that later. 

For now, we're going to investigate how long an energy drink actually lasts in your body, and why. 

Let's dive in: 

How long does it take for an energy drink to wear off?

According to Medical News Today, it takes approximately 12 hours for the body to completely process all of caffeine content in an energy drink. However, this does depend on individual circumstances, including your energy drink's caffeine content and your body's caffeine metabolism rate. 

Dr. Stuart Farrimond told The Daily Mail "Caffeine is a crafty drug that temporarily blocks adenosine [a chemical involved in how tired we feel] pathways, giving you a boost while allowing ‘feel good’ molecules in the brain – such as dopamine – to be released more readily. You feel more alert and you feel better about yourself." 

But even after the 12 hours have gone by and all caffeine has been metabolized, you may still feel the 'withdrawal' effects of the energy drink for 12-24 hours after consumption. The effects are especially strong if you're a daily caffeine consumer who has not had their daily dose in a while. 

How long do energy drinks last before you crash?


Caffeine levels peak in your bloodstream within 15-45 minutes of consumption, and it's all downhill from there. That's why most energy drinks give you a short burst of energy followed by a crash - the caffeine is absorbed rapidly and as your body metabolizes the caffeine, you may feel more tired than before you pounded the Red Bull in the first place. 

Despite having the caffeine in your body for 12+ hours as mentioned earlier, you'll likely start to crash within an hour or two of consuming a standard energy drink. Unless you're drinking a high quality energy drink that helps you wake up early and get sh*t done without the crash, don't expect to feel good for more than a few hours, much less all day long. 

How long do energy drinks last after opening? 

According to Still Tasty, an opened energy drink will keep in the fridge anywhere from 2 to 4 days. However, since energy drinks are acidic, they'll actually stay good in the fridge far longer, even after opening. All you'd have to worry about is the loss of carbonation if that's your thing. 

On the other hand, if you want to check out the best energy drink that doesn't go bad in the fridge or elsewhere and is non-carbonated, then check out Early Bird

How long does an energy drink last unopened? 

Still Tasty reports that most energy drinks last 6 to 9 months after the date on the can, stored unopened at room temperature. 

Even after those 9 months go by, most Energy Drinks will likely stay drinkable after that as well. Marty Spargo, an expert on energy drinks and founder of Reize, says 

"The expiry date is there merely as an indication that the product will not taste that great past their expiry date, and that the ingredients will start to degrade to the point that the nutritional information is no longer consistent with what’s actually contained in the can."

Moreover, the drink will most likely lose its carbonation, so I'd avoid drinking an old energy drink if you don't typically like our soda flat. 

How long do energy drinks take to kick in? 

Some studies have shown that caffeine and other stimulants can begin having an effect on your body within just 10 minutes of consumption. 

Within 45 minutes of consumption, caffeine levels in the blood reach their peak and from there, the body begins metabolizing all of the caffeine until a maximum of 12 hours has passed, at which point all the caffeine should be out of your system (depending on how much caffeine you consumed in the first place). 

How much water does it take to flush out an energy drink?

There is some unclear information floating around on the internet about the amount of water it'd take to flush out a can of Monster Energy, among other standard energy drinks.

For example, this site talks about 6.3 gallons of water to fully flush out one can of Monster Energy from your kidneys (keep in mind the average person drinks less than a gallon per day.)

How long do Monsters keep you awake? 

A regular can of Monster has 160mg of caffeine per 16oz can, more than Monster reports and roughly double that of a regular coffee. 

That being said, caffeine is fully absorbed into your bloodstream within ~45 minutes and will continue to circulate in your body for another 6-8 hours. That said, drinking a can of Monster before bed - or even later in the afternoon - is definitely not a good idea. 

What do energy drinks do to your body?

According to Dr. Higgins of CNN, energy drinks will elevate heart beat, as "energy drinks not only have been shown to raise stress levels, increase heart rate, increase blood pressure, they've also been shown to make the blood a little bit thicker."

Most energy drinks are fine once in a while for the average, healthy person, though it's not advised you down a Red Bull every single day with your breakfast. Conversely, someone with heart issues or other health problems may want to avoid energy drinks entirely, even high-quality drinks with natural ingredients like Early Bird.

How many energy drinks can you drink in a day? 

According to Mayo Clinic, the average healthy adult can safely have up to 400 mg of caffeine a day. Considering the average energy drink has anywhere from 100 to 300 mg of caffeine per can, you can safely drink 1-3 cans per day, going by the 400mg of caffeine limit alone. 

Still, too many energy drinks in a day - or even one can a day - can have other unintended health consequences, most of which the result of excessive sugar intake. 

A typical can of Red Bull or Monster can have anywhere from 20 to 30 grams of sugar per serving, which is on par with sodas like Coke or Pepsi. And if that's not sweet enough for you, Monster has the artificial sweetener sucralose as well. 

That being said, technically you can have a few energy drinks a day, but most energy drinks are unhealthy and should be consumed sparingly, especially those loaded with sugar. 

If you're worried about sugar intake but still need an energy supplement to get you through the day, check out Early Bird - it's sugar free and made with all natural ingredients. You'll finally be able to wake up early feeling good and ready to get shit done, without the crash. 

Best Energy Drink That Works All Day

Early Bird is definitely the best energy drink that works all day long, without the crash.

Here's why: 

Early Bird is a non-carbonated energy drink that uses green coffee beans which have a plethora of health benefits, as opposed to caffeine from regular, roasted coffee beans.

L-theanine - an amino acid found in tea leaves - is another ingredient in Early Bird that promotes intense focus. 

GABA, a neurotransmitter that helps your brain cells better communicate with each other, is also an ingredient in Early Bird, which promotes better focus, concentration, and clears your head. 

Ashwagandha (KSM-66), combats brain fog and promotes mental clarity. After all, you can give your body all the energy in the world, but if your brain isn't functioning properly, it won't matter much - you'll still feel miserable! 

If you want to learn more about the Early Bird story and try some yourself, you can check it out here

Moral of the story? 

Early Bird is the best energy drink around for driving! 

How do you get energy drinks to wear off? 

There's not much you can do to make an energy drink wear off faster than your body can metabolize the ingredients naturally. For most people, the immediate effects of an energy drink will kick in within 10 minutes of consumption, peak at the 45 minute mark, and decline over the next 2-3 hours.

Nevertheless, energy drinks and their ingredients will stay in your system for up to twelve hours. 

But if you have the jitters and want to calm down a bit, here's a checklist:

  1. Don't consume any more caffeine for the rest of the day, as an extra can or another cup of coffee will surely make the problem worse. 
  2. Drink lots of water - caffeine is a diuretic, which means you need to replace the water lost from urination. 
  3. Replacing your electrolytes will supercharge hydration
  4. Lastly, taking a walk and practicing deep breathing should both help to calm you down and make you feel better.

If you're having extremely negative side effects after consuming an energy drink, call your doctor.