Energy drink withdrawal: what symptoms to expect, and how long they last
Headaches, fatigue, irritability — these are real caffeine withdrawal symptoms. Here is when they start, how long they last, and what actually helps.
The real surprise comes when people actually try to give up energy drinks.
They expect to want one more for a day or two. Instead they get a headache, feel tired all day, turn irritable, and feel as though their brain simply will not work without one.
At that point it is easy to conclude:
I really do need it.
Yet it is usually not the case that you suddenly have less energy without the drink. Your body has simply got used to a regular supply of caffeine, and it needs time to adjust to a smaller one.
Why does giving up energy drinks cause symptoms?
The main stimulant in energy drinks is usually caffeine.
If you take caffeine regularly, your body adapts to it over time. That is how the same energy drink that gave you a real lift at first ends up, a few months later, only being enough to make you feel roughly normal.
When you cut caffeine sharply or drop it entirely, that balance is disturbed. Withdrawal symptoms can appear as a result.
You do not need to be on three or four energy drinks a day for this. Research suggests symptoms can develop after regular intake of as little as around 100 mg of caffeine a day — roughly a large coffee, or slightly more than a small energy drink.
Not everyone gets the same symptoms, of course, and their intensity varies a great deal.
What are the most common withdrawal symptoms?
Headache is the best-known symptom of caffeine withdrawal, but it is far from the only one.
Common symptoms include:
- headache
- fatigue
- drowsiness
- low energy
- difficulty concentrating
- dullness or “foggy” thinking
- irritability
- low mood
- reduced motivation
- strong cravings for an energy drink or caffeine
Less often, nausea, muscle pain, muscle stiffness or a flu-like feeling of being unwell can occur too.
You will not necessarily get all of them. One person may have a mild headache; another feels almost unusable for a day or two.
Symptoms are generally stronger in people who were having more caffeine, who had been drinking energy drinks for longer, or who cut their intake to zero overnight.
When does withdrawal start?
Symptoms usually do not show up right after your last energy drink.
Often you only notice something is off the following day.
Caffeine withdrawal symptoms typically begin around 12–24 hours after the last dose. The most intense window is generally between 20 and 51 hours — roughly the first and second day.
That is why it is so common to sleep in at the weekend, miss your usual morning energy drink or coffee, and have a headache by late morning.
It is not necessarily the extra sleep or the weather. It may simply be that your body got its usual dose of caffeine later than normal.
How long does energy drink withdrawal last?
In most cases we are talking about a few days.
Research indicates caffeine withdrawal symptoms generally last 2–9 days. The worst stretch is usually the first two days, after which the symptoms ease gradually.
One possible timeline looks like this:
The first 12 hours
You may feel nothing yet — particularly if you also used to have caffeine later in the day.
12–24 hours
Headache, fatigue and difficulty concentrating can appear. This is often when you start genuinely missing your usual energy drink.
Day 1–2
For many people this is the hardest stretch. Headache, drowsiness, irritability and low energy can all be stronger.
It is easy to think at this point that you cannot work or get through the day without an energy drink. In reality, what you are usually feeling is the temporary symptoms of withdrawal.
Day 3–4
For most people symptoms are already starting to ease. The headache may fade, while the tiredness and the craving for your usual drink can still linger.
Day 5–9
The physical symptoms are usually largely gone. The habit, however, can still show up in particular situations.
At work, while driving, during gaming, at a petrol station or after a bad night, an energy drink can still come to mind automatically weeks later.
That is not necessarily physical withdrawal any more. It is often an ingrained routine, or a habit attached to a specific situation.
Why does your head hurt?
Headache is one of the most common symptoms of caffeine withdrawal. In studies it affected roughly half of participants.
It is a difficult one, because the simplest solution appears to be having an energy drink. And the headache really can ease quickly that way.
Except that this restarts the same loop:
- you take caffeine regularly,
- your body adapts,
- without caffeine you get a headache,
- you have an energy drink,
- the headache goes away,
- so it feels as though the energy drink helped.
In reality it often did not solve a problem that existed in the first place. It removed a withdrawal symptom that came, in part, from taking caffeine regularly.
That is why the feeling that you function worse without an energy drink can be so misleading.
Is it normal to be much more tired?
Yes — fatigue and drowsiness are common withdrawal symptoms.
This can be especially noticeable if you used to start every morning with an energy drink. Your body got used to caffeine arriving at a particular time, so without it you may feel markedly duller for the first few days.
That does not necessarily show what your real energy level would be without caffeine.
Withdrawal is a transitional state. Day one or day two is not the point at which to decide whether you can live without energy drinks.
It would be like judging whether exercise is good for you long-term based on how sore you are after your first session.
What happens to your mood?
Irritability, low mood and a lack of motivation can occur as well.
In the first few days everything can feel slower, you may have less appetite for work, and other people may get on your nerves more easily.
That is not necessarily because the energy drink put you in a better mood. It may be that part of your regular caffeine intake was only ever avoiding withdrawal symptoms.
Taking caffeine in that situation restores the state you had come to experience as normal.
It is also why many people reach for an energy drink in the morning not because they particularly want a lift, but because they simply feel worse without one.
Should you stop abruptly or taper?
Both can work, but the best answer is not the same for everyone.
If you only have one smaller energy drink a day and have never had much withdrawal before, you may well be able to drop it overnight without much trouble.
If you drink several cans a day alongside coffee and cola, however, cutting your total caffeine to zero at once can be quite unpleasant.
The FDA suggests regular caffeine consumers reduce their intake gradually instead, since stopping abruptly — while generally not dangerous — can cause unpleasant symptoms.
A gradual reduction might look like this:
- drop the last energy drink of the day first,
- swap the half-litre can for a 250 ml one,
- do not cut energy drinks, coffee and cola all at the same time,
- take a little more off every few days,
- pick a lower-caffeine alternative,
- push the first caffeinated drink of the day later.
It does not matter if the process is not perfectly even. What matters is that your total caffeine comes down over time.
Do not count only the energy drinks
This is very easy to get wrong.
You give up energy drinks, but start drinking more coffee or cola instead — so your daily caffeine barely changes.
Or the opposite happens: you drop the energy drinks, the morning coffee and the litre of cola all at once, and then get far stronger withdrawal symptoms than you expected.
Caffeine does not only come from energy drinks. It also counts from:
- coffee,
- cola,
- black and green tea,
- iced tea,
- pre-workout supplements,
- certain dietary supplements,
- some headache medicines,
- anything else with added caffeine.
So before cutting down, it is worth writing down for a few days how much caffeine you actually have.
Often that alone produces a surprising result.
How can you ease the symptoms?
There is no method that reliably removes every symptom, but a few things can help a lot.
Reduce gradually
If you were having a lot of caffeine, you generally do not need to go to zero overnight.
Tapering is slower, but it is often far easier to sustain.
Drink enough fluids
Water does not “flush” caffeine out of your system, and it will not make withdrawal disappear. Staying properly hydrated is still important, particularly with a headache or when you feel unwell.
Try to sleep more
You really may be sleepier in the first few days. If you can, do not schedule your most demanding days for this stretch.
Tiredness does not always have to be suppressed immediately with another stimulant. Sometimes you simply need sleep.
Eat regularly
Energy drinks often mask hunger as well as tiredness. Without one, you may notice that you have not actually eaten for hours.
A proper breakfast or lunch can do more for your energy level than another sugar-free caffeinated drink.
Move a little
A short walk, a few minutes of movement or some fresh air is no substitute for sleep, but it can help you get through the duller stretches.
This does not mean a serious workout. Ten minutes is often enough to feel less weighed down.
Plan ahead for your usual situations
Beyond the physical symptoms, there is the routine itself.
If you always buy an energy drink at the petrol station, decide in advance what you will buy instead. If you drink one while gaming, put a different drink there. If you reach for one in the afternoon slump, plan a short walk or a meal.
The fewer decisions you have to make in the difficult moment, the easier it is to hold the reduction.
What if you do have one after all?
Nothing that means you have to start the whole process over.
Plenty of people think that if they went three days without an energy drink and then had one on the fourth, they have ruined everything.
That is not how it works.
A single energy drink does not erase what you have done so far. It is worth looking at why you had it, though:
- you had a headache,
- you had very little sleep,
- you bought it out of habit,
- you were stressed,
- you had to drive,
- there was nothing else to hand,
- you simply fancied one?
The single can is not the important part. Understanding which situation set it off is.
That way you can have a concrete plan for next time.
When should you not blame withdrawal for everything?
Headache, fatigue and feeling unwell are common after cutting caffeine, but not every symptom is caffeine withdrawal.
It is worth seeking medical help if the symptoms:
- are unusually severe,
- keep getting worse,
- last more than a week or two,
- involve fainting,
- involve chest pain,
- come with a serious heart-rhythm disturbance,
- include confusion or significant neurological symptoms,
- or simply do not fit the usual picture of a headache and tiredness.
Caffeine withdrawal typically resolves on its own and, while unpleasant, is generally not dangerous. Its symptoms can resemble other problems, though, so it is not wise to attribute everything to it automatically.
In short
The headache, fatigue, drowsiness, irritability and difficulty concentrating that follow giving up energy drinks can be genuine caffeine withdrawal symptoms.
They generally:
- begin within 12–24 hours,
- are strongest on the first and second day,
- then fade gradually within 2–9 days.
The more caffeine you were having, the more unpleasant an abrupt stop can be. That is why tapering is often simpler if you drink several energy drinks a day.
Most importantly, do not conclude from the first few difficult days that you will always be this tired without an energy drink.
What you are feeling is probably not your permanent state without them.
It is just the transition.
Frequently asked
How long does energy drink withdrawal last?
Research indicates symptoms generally last 2–9 days, with the first two days usually the worst, after which they ease gradually.
When do withdrawal symptoms start?
Typically around 12–24 hours after your last dose, with the most intense window between 20 and 51 hours — roughly the first and second day.
Why does my head hurt when I skip energy drinks?
Headache is one of the most common caffeine withdrawal symptoms — it affected roughly half of participants in studies. An energy drink can relieve it quickly, but that restarts the same loop.
Should I stop abruptly or taper?
Both can work, but the FDA suggests regular caffeine consumers reduce gradually, because stopping abruptly — while generally not dangerous — can cause unpleasant symptoms.
This article is for information only and is not medical advice. If symptoms are unusually severe, keep getting worse, or come with chest pain, fainting, heart-rhythm disturbances or neurological symptoms, see a healthcare professional.