When should you take creatine, before or after a workout?

Creatine isn’t a pre-workout

This is the mix-up behind most of the timing worry, so it’s the thing to get straight first.

A pre-workout is something you take, feel soon after, and burn through in a session. Caffeine works like that. Creatine doesn’t. Creatine works by filling up a store in your muscles, and it’s the full store that helps you, not today’s scoop.

On the rest-days page I explain it with a mana bar: the first few seconds of a hard set, the heavy reps where you’re grinding, run on creatine your muscles already have stored, and taking creatine makes that store bigger. The word that matters today is “stored”. Your muscles hold a reserve of creatine. A normal diet keeps it around 60 to 80 percent full, and taking creatine tops up the rest over days and weeks. Once it’s full, a daily dose keeps it full, because you lose a little every day.

Now look at what happens to one scoop. You drink it, and it takes an hour or two just to peak in your blood, where it hangs around for a few hours after that. Getting from your blood into your muscles is slower again: it takes days of taking it before the store has moved much. So the 5 grams you take in the parking lot at 5:55 have barely begun to reach your muscles by the 6 o’clock session. What’s in your muscles for that session is almost all of what you took over the last few weeks.

Once you see that, the timing question changes shape. It stops being “when do I take it so it works today?” and becomes “how do I keep the store full?” And the answer to that is boring: take it every day, and don’t miss many.

Before or after a workout?

So does before or after matter at all? People have tested this properly, and the honest answer is no.

In the studies that compare the two, one group takes creatine right before each session and the other right after, for anything from a month to eight months, and they end up with the same gains in muscle and strength. That has held in young lifters, in older adults who had never lifted, in college athletes, and in women as well as men. One of the longer studies found a hint that the after group put on slightly more muscle, but the gap between before and after was too small to be sure it was real, and the other studies found no difference either. And one tiny recent study found that a single dose before a session helped people lift a bit more in that session. That’s eleven men and single sessions, so it’s a lead for researchers, not something to build a habit on.

You’ll still see “take it around your workout” on plenty of pages. The study usually behind that advice gave people a mix of protein, sugar and creatine either side of training and found it beat the same mix taken morning and evening. But with protein and sugar in the mix, it can’t tell you anything about creatine on its own.

So: if you like taking creatine after you train, with your shake, do that. If you’d rather have it before, fine. Either works, and neither is wasted.

Morning or night?

Same answer. In the one study that split people into a morning group and an evening group, both improved the same, which is what you’d expect from something that’s stored and used whenever you need it. Creatine isn’t a stimulant, so there’s no reason to keep it away from bedtime. A trial that measured sleep during a loading week found no harm to it.

If you train first thing on an empty stomach, you don’t have to get it in before you go. If you train at ten at night, you don’t have to wait up for it. Take it when your day has a slot for it.

So what’s the best time? The one you’ll remember

The best time to take creatine is the time that gets it taken every day. That’s not me dodging the question. It is the answer. The thing that decides whether creatine works for you is whether the store stays full, and the store stays full when you take it daily.

So pick an anchor, something you already do every day without thinking, and attach the scoop to it. Breakfast. Brushing your teeth. Your protein shake. The first glass of water of the day. Put the tub next to the thing. For most people that ends up being a meal, and a meal is a good pick for a second reason.

Does it help to take it with food?

A little, early on. Creatine gets into your muscles more easily when there’s insulin around, and insulin goes up when you eat, especially carbohydrate, or carbohydrate with protein. In the lab studies that showed this, people took their creatine with a lot of sugar, around 90 to 100 grams, or with a meal’s worth of protein and carbs, and they held on to more of it.

Two things keep that in proportion. First, the effect matters while your store is still filling: the first week if you load, the first few weeks if you don’t. Once it’s full, extra uptake has nowhere to go. Second, taking creatine with food has never been shown to make you stronger or bigger than taking it on its own. It may get you to full a bit sooner, that’s all. So don’t chase sugar with your scoop. Taking it with a normal meal gives you the small bonus for free, and more importantly, a meal is an anchor you won’t forget. Taking it in water on an empty stomach works too. Nothing is wasted either way.

What about coffee and pre-workout?

Plenty of people stir creatine into their coffee, or get some from a pre-workout, and then read somewhere that caffeine cancels it out. Here’s where that comes from, and what to do with it.

One small study back in the nineties had people load creatine with or without caffeine. The caffeine group got the same rise in muscle creatine but lost the strength boost. That’s the whole origin of the worry. Since then the results have been mixed: a couple of studies found some interference, most found none, and in a six-week study where people took both together before every session, they ended up about where the people on creatine alone did. Nobody has shown that caffeine stops creatine getting into your muscles. If there’s an effect at all, it’s most likely on the day, in how the muscle works, not on the store.

So don’t give up your coffee over it, and don’t stress about the pre-workout. If you want to play it safe, it’s easy: have your caffeine before you train, and take your creatine at another point in the day, with a meal or after the session. That’s the practical line the people who research creatine have landed on too. And if you’d rather mix it into something warm, go ahead. Creatine dissolves better in warm water.

Forgot to take it before the gym?

Then take it after, or with dinner, or whenever you notice. The session you’re about to do runs on the store you’ve built, not on the scoop you forgot. And if you forget the whole day, nothing happens that you’d ever notice: the store drains slowly, over weeks, so one missed day doesn’t show. Take your normal amount the next day, and don’t double up.

If you’ve been skipping creatine on the days you don’t train, that’s a different mistake, and an easy one to make. It’s the same store on a Sunday as on a Monday. The rest-days page goes through that properly.

A few situations

You train first thing, before eating. Take it after training with breakfast, or any time later. Nothing lost.

You train late. Take it whenever your day has a slot, bedtime included.

You’re in your loading week. If you’re starting with a loading week, about 20 grams a day split into four servings, spread the servings across the day with your meals. Smaller servings tend to be easier on your stomach, and food helps you hold on to a little more while the store fills.

You’re a woman. The same answer. The timing studies included women and found no difference between before and after, and the morning-against-evening study was all women. Nothing in them points to a different answer for women, and nobody has found a reason for a separate schedule.

You mix it in a bottle for later. Drink it reasonably soon. Creatine powder keeps for years, but once it’s dissolved it slowly turns into something your body can’t use, faster when it’s warm and in acidic drinks. A shaker you drink straight away is fine. A bottle that sits in the car all day isn’t ideal.

The scale went up after you started. That’s water inside your muscles, not fat, and it has nothing to do with the time of day you take it. Our page on creatine and weight goes through it.

Putting it together

Take creatine every day, at whatever time you’ll keep taking it.

Before or after a workout makes no difference anyone has measured. Neither does morning or night.

It isn’t a pre-workout. It works by keeping your muscles’ store full, and the store fills over weeks, not from today’s scoop.

With a meal is an easy anchor and a small bonus while the store is filling. It’s not a rule.

Coffee is fine. If you want to be careful, caffeine before training, creatine at another time.

Forgot it before the gym? Take it after. Forgot the whole day? Take your normal amount tomorrow, and don’t double up.