Creatine Before or After Workout: 5 Proven Facts
Creatine Before or After Workout: 5 Proven Facts
Creatine before or after a workout makes almost no measurable difference: across four head to head trials, none found a statistically significant gap in strength between the two timings. If your question is should I take creatine before or after workout, that is the short answer. The advice to take it after training traces back to one four week study in 19 bodybuilders, where the post workout group did slightly better but the difference did not reach significance. Whether you take creatine before or after matters far less than taking it every day.
Educational content only. This page reports what published trials measured. It is not medical advice and it is not a dosing prescription. If you have kidney disease, take medication that affects kidney function, or are under 18, talk to a clinician before using creatine.
Supplements Editor · Updated September 2026
Three numbers behind the timing debate
Antonio and Ciccone compared 5 g of creatine before or after training in 19 recreational bodybuilders for four weeks. Nearly every article on creatine before or after a workout rests on this one small trial.
Four trials have put the two timings head to head. None reported a statistically significant difference in strength between taking creatine before or after training.
Hultman and colleagues found muscle creatine took about 30 days to fall back to baseline after supplementation stopped. A store that moves over weeks cannot care much whether you take creatine before or after the session.
Every figure on this page comes from a published abstract checked against PubMed. Where a recommendation is common practice rather than a measured result, the text says so.
What this guide covers
The original study. What Antonio and Ciccone actually measured when they tested creatine before or after training, in whom, for how long, and what their own statistics said.
Every head to head trial. All four comparisons of creatine before or after training, set side by side with who was studied and what was found.
Why the effect is small. How muscle creatine stores behave, and why that makes the clock on a single dose a minor detail.
The practical questions. Whether creatine before or after still matters on rest days, taking it with food or carbohydrate, and a plain answer on what to do.
Where the take it after training advice comes from
In 2013 Antonio and Ciccone randomised 19 healthy recreational male bodybuilders to take 5 g of creatine monohydrate either immediately before or immediately after training. They trained about five days a week for four weeks and took the dose whenever convenient on the two rest days. Body composition and bench press strength were measured before and after.
Creatine before
Mean changes reported by Antonio and Ciccone. The spread was wide: plus or minus 1.8 kg on fat free mass.
Creatine after
Same study. The authors' own analysis found trends but no significant interaction between group and time.
The numbers lean toward after training, and that is what got repeated in every article on creatine before or after training. What got dropped is the statistics. The conventional test found no significant interaction, the standard deviations were as large as the differences, and 19 people over four weeks is a small sample. The question of creatine before or after training was opened by this paper, not settled by it.
Every trial that compared creatine before or after training
Three more trials have tested creatine before or after training since. Put together they cover young lifters, trained athletes of both sexes and adults over 50, from 4 to 32 weeks.
| Trial | Who | Length | Dose | What it found | Status |
|---|---|---|---|---|---|
| Antonio and Ciccone 2013 | 19 male recreational bodybuilders | 4 weeks | 5 g | Trends toward after, no significant interaction | ● edge to after |
| Candow 2014 | Healthy older adults | 12 weeks | Creatine, before or after | Lean mass, muscle thickness and strength rose in both groups, no differences between them | ● no difference |
| Candow 2015 | 39 adults aged 50 to 71 | 32 weeks | 0.1 g per kg | Strength up equally with either timing. Only the after group beat placebo on lean mass | ● edge to after |
| Dinan 2022 | 34 resistance trained men and women | 8 weeks | 5 g within 1 hour | Timing did not exert any additional influence on the outcomes | ● no difference |
The longest trial is the most useful. Over 32 weeks Candow and colleagues saw leg press strength rise by 36.6 kg with creatine before training and 40.8 kg with creatine after, against 5.6 kg on placebo. Chest press rose 15.2 kg and 15.7 kg against 1.9 kg. Creatine worked. Whether it was creatine before or after barely registered.
Scoreboard across the four head to head trials
Two narrative reviews of creatine before or after exercise reach the same place. Ribeiro and colleagues titled theirs with the question of whether creatine timing around exercise is a real concern at all, and Candow and colleagues, in a review called Creatine O'Clock, set out the proposed mechanisms, weigh the same trials and list what still needs testing rather than issuing a rule.
Why creatine before or after barely matters
Caffeine works within the hour, so timing it matters. The question of creatine before or after is a different kind of question, because creatine does nothing acutely. It works by raising the amount of creatine stored in muscle, and that store changes slowly. Hultman and colleagues showed it takes 6 days of high dosing or 28 days of low dosing to fill, and about 30 days without any creatine to empty again.
Seen that way, the debate over creatine before or after a session is a debate about which hour you top up a tank that takes a month to drain. A missed day costs more than choosing wrongly between creatine before or after. Our guide to the creatine loading phase covers how the stores fill in the first place.
Does your week add up
Compares your weekly average with two measured figures from Hultman and colleagues: 3 g a day filled muscle stores in 28 days, and 2 g a day held loaded stores for a further 30 days. Educational estimate, not medical advice.
Creatine on rest days
Yes, take it. In the Antonio and Ciccone trial both groups took their 5 g on the two non training days at whatever time was convenient, and that is the protocol the after training result came from. No study of creatine before or after training has skipped rest days, because the point of supplementation is to keep stores full.
Same dose. With no workout, the question of creatine before or after disappears. Morning with breakfast is the easiest habit to keep. If the habit is the hard part, see creatine gummies vs powder for whether a chewable format is worth the price.
With a meal. Carbohydrate and protein raise creatine retention, and a meal makes a forgotten dose less likely.
Missed one. Carry on the next day. Stores fall over weeks, so a single gap changes nothing you could measure.
Should creatine be taken with carbs or protein
This is the part of the creatine before or after question with real data behind it. Green and colleagues found that taking creatine with a large carbohydrate load raised the gain in muscle total creatine by 60 percent compared with creatine alone. Steenge and colleagues then showed that about 50 g of protein plus carbohydrate was as effective at driving insulin release and creatine retention as almost 100 g of carbohydrate.
There is a catch that rarely gets quoted. In the same Steenge study the boost from insulin faded within the first 24 hours of supplementation. The meal effect matters most while stores are filling and much less once they are full.
It also explains the one trial that seems to show creatine before or after training beats other times of day. Cribb and Hayes gave resistance trained men a supplement containing protein, creatine and glucose either immediately before and after training or in the morning and late evening. The before and after group gained more lean mass and strength and ended with higher muscle creatine. But the supplement also contained protein and glucose, so the study cannot say which ingredient, or which side of the session, did the work.
Five facts on creatine timing that hold up
No trial found a significant strength gap
0 of 4Antonio and Ciccone, both Candow trials and Dinan and colleagues all compared creatine before or after training. Strength improved with either timing, and no study reported a statistically significant difference between them.
If there is an edge, it is after
+3.0 kgIn adults aged 50 to 71, creatine after training produced a 3.0 kg gain in lean tissue against 0.5 kg on placebo over 32 weeks, and only the after group separated from placebo. No trial has shown the reverse.
The famous study was tiny and short
19 / 4 wkNineteen men, four weeks, no significant interaction, and the word possibly in the conclusion. It is a reasonable pilot and a weak foundation for a rule.
A meal helps more than the clock
+60%Carbohydrate raised muscle creatine accumulation by 60 percent in the Green trial, and a mixed protein and carbohydrate meal did the same job with half the carbohydrate. No trial of creatine before or after training has shown an effect of that size.
Daily intake is what fills the tank
DailyKreider and colleagues note in the International Society of Sports Nutrition position stand that studies have consistently shown supplementation raises intramuscular creatine, which may explain the performance benefit. That rise comes from the daily total, whether it is creatine before or after the session.
One more effect gets blamed on timing and has nothing to do with it. Powers and colleagues measured a rise in body mass and total body water with creatine, without any change in how fluid was distributed. The early jump on the scale is water, whether you take creatine before or after training.
Five timing mistakes
1. Skipping the dose because the window was missed. There is no window. A late dose is worth the same as a punctual one, and a skipped dose is the only kind that costs anything.
2. Treating creatine like a pre workout. It has no acute effect. Taking creatine before or after a session changes nothing about how that session feels.
3. Dropping it on rest days. Every trial of creatine before or after training dosed on rest days. Stores are a seven day a week job.
4. Chasing the insulin spike with sugar. A mixed meal of about 50 g of protein and carbohydrate matched nearly 100 g of carbohydrate alone, and the effect fades after the first day anyway.
5. Quoting the 2013 study as proof. On creatine before or after training its own authors wrote possibly. Three later trials found no timing effect on strength.
Verdict: should I take creatine before or after workout
Take it when you will remember it. If you want to play the small odds the evidence offers, take it after training with a meal, because the only edges any trial has found point that way and none point the other. But the honest reading of four trials is that creatine before or after training is a rounding error next to taking it every day.
- You already eat a meal or have a shake after training and can add the dose to it.
- You are over 50, the one group where after training separated from placebo on lean mass.
- You train fasted and would rather not take powder on an empty stomach.
- You like following the side the evidence leans toward, however slightly.
- A fixed time such as breakfast is the only way you take it every day.
- Your creatine is already in a pre workout you use and tolerate.
- You train at irregular hours or not at all on some days.
- You were about to skip a dose because the window had passed.
Dinan and colleagues put it most plainly after eight weeks in trained men and women: the timing of creatine monohydrate did not exert any additional influence over the measured outcomes. Every trial in this area used monohydrate, and our comparison of creatine HCL vs monohydrate explains why that is still the form to time.
Common questions
Is it better to take creatine before or after a workout?
The difference is too small to measure reliably. Four trials have compared creatine before or after training and none found a statistically significant gap in strength. Where any edge appeared it favoured after training, so that is the sensible default if you have no other preference.
Should I take creatine before or after my workout to build muscle?
Either works. In the study of creatine before or after training most often quoted, the after training group gained 2.0 kg of fat free mass against 0.9 kg in the before group over four weeks, but with only 19 men the difference was not statistically significant. A 32 week trial in older adults found lean mass gains beat placebo only with after training dosing.
Does creatine timing matter at all?
Very little. Whether you choose creatine before or after, it works by raising muscle stores, which take days to weeks to fill and about 30 days to empty. An eight week trial in 34 trained men and women concluded that timing did not exert any additional influence over the outcomes. Taking it daily matters far more than when.
Should I take creatine on rest days?
Yes. Every trial of creatine before or after training kept participants on creatine through rest days, including the original study where both groups took 5 g at their convenience on non training days. The goal is full stores all week, so the dose stays the same and the clock stops mattering.
Should I take creatine with food?
It helps, mainly early on. Carbohydrate raised muscle creatine accumulation by 60 percent in one trial, and about 50 g of protein and carbohydrate together worked as well as nearly 100 g of carbohydrate. The same research found the insulin effect faded within the first 24 hours, so a normal meal is enough.
Can I take creatine before bed or first thing in the morning?
Yes. No trial has tested those exact times against each other, and nothing in how creatine works suggests it would matter. It is not a stimulant, so there is no reason to expect it to disturb sleep. Pick whichever time you are least likely to forget.
Is creatine in a pre workout drink enough?
Only if the label shows a full dose. Hultman and colleagues filled muscle stores with 3 g a day and held them with 2 g a day. If your pre workout lists less than that per serving, or you only use it on training days, your weekly average may fall short.
Why did I gain weight after starting creatine?
Mostly water. Powers and colleagues measured increases in body mass and total body water with creatine supplementation, with no change in how fluid was distributed in the body. It happens whether you take creatine before or after training and is expected rather than harmful.
References
More on creatine
Final Educational Note
This article is for educational purposes and does not constitute medical advice. Creatine response depends on diet, muscle mass, kidney function and medical history, and the trials described here were run in healthy adults. Do not start supplementation, change a dose or interpret a blood test based solely on general guidance from any website, including this one. If you have kidney disease, take medication that affects the kidneys, are pregnant or are under 18, a clinician should make the call.
MuscleScience does not sell creatine, supplements or medical services. We have no financial relationship with any supplement manufacturer. The goal of this article is to show what the timing trials measured so you can stop worrying about the clock. For more guides, see the supplements hub.
