You might be taking creatine for your workouts.
Or maybe the jar is just sitting there in the kitchen cabinet.
Maybe you bought it after hearing that creatine can help with strength, recovery, or focus.
But it’s not always that people stop and think about why they want to take creatine themselves.
And that question can actually matter.
Because if you do heavy strength training several times a week, your needs might look different than if you’re mostly curious about creatine for energy, recovery, or focus.
But here it gets a bit interesting.
Many of us have heard exactly the same advice:
5 grams of creatine per day.
But that number actually comes from quite specific studies.
And maybe it doesn’t always match your specific needs.
Why exactly 5 grams became the standard
The recommendation of 5 grams of creatine per day has been around for a long time.
It comes from studies where researchers examined how creatine affects muscle energy stores. In many of these studies, they started with a so-called loading phase of about 20 grams per day for a few days. After that, about 3–5 grams per day was enough to maintain levels.
It worked well for that purpose.
But the studies were almost always done on young men, and the focus was mainly on muscles.
Today we know that creatine is used in more parts of the body than that.
Creatine is really about energy
Creatine is part of the body's fastest energy system.
When cells suddenly need more energy, for example in muscles or the brain, creatine helps quickly replenish the energy so the system can keep working.
That is why creatine has long been popular in the fitness world.
But the same energy system is also used in other parts of the body.
An interesting detail is that the brain actually uses large amounts of energy every day.
Despite its size, it accounts for about 20 percent of the body's total energy consumption.
Creatine and the brain
Because the brain requires so much energy, researchers have also started to look more at creatine in that context.
Today, creatine is studied in relation to:
- mental fatigue
- cognitive performance
- sleep deprivation
This is still an area where research is evolving, but it is one of the reasons creatine is now discussed in more health contexts than before.
And maybe also why it suddenly appears everywhere in your Instagram feed.
Creatine and women – something that has long been overlooked
Most creatine studies have historically been conducted on men.
This has long made creatine seen primarily as a supplement for gym guys.
But the picture is starting to change.
Women generally have lower creatine levels in their bodies than men, partly because they often eat less meat and fish where creatine naturally occurs.
At the same time, researchers are starting to look more at creatine in contexts other than performance.
For example, in studies on energy, recovery, and cognitive function.
This is also one reason why creatine is sometimes discussed more in connection with plant-based diets.
Since creatine is mainly found in animal foods, many vegetarians and vegans get significantly less from their diet.
Did you know?
Creatine occurs naturally in meat and fish.
But the amounts are actually quite small.
To get about 5 grams of creatine from food, you would need to eat about a kilo of meat or fish.
Most of us don’t actually eat that much every day.
This is one of the reasons why creatine is most often used as a supplement in studies aiming to increase the body's creatine levels.
So how much creatine do you really need?
The classic recommendation is 3–5 grams creatine per day.
For many, it works well. If you take creatine regularly, the body’s creatine stores will gradually fill up over a few weeks.
But that dose is mainly based on studies where the goal was to saturate the muscles’ creatine levels.
Since creatine is used in more parts of the body, some researchers have started discussing whether the dosing is always optimal for everyone.
In some studies, therefore, a slightly higher intake is examined, often around 8–10 grams per day, especially when researchers look at brain energy or sleep deprivation.
That doesn’t mean everyone needs more than 5 grams.
But it shows that the classic dose doesn’t necessarily suit everyone equally well.
A simple rule of thumb could be to think like this:
- 3–5 grams per day is enough for most
-
slightly higher intake is sometimes discussed in studies on mental energy or sleep deprivation
That’s also why creatine doesn’t work like caffeine or other supplements that give a clear effect immediately.
Creatine acts more like a reservoir in the body. When you take it regularly, levels gradually build up in muscles and other tissues.
It’s only when the stores have built up that the effects usually become noticeable.
One last thing that might be worth considering
When reading about supplements, it’s easy to get stuck on exact grams.
3 grams. 5 grams. 10 grams.
But sometimes the more interesting question is actually another.
Why do you want to take creatine in the first place?
Is it for training?
For recovery?
For focus and mental energy?
The answer to that question can sometimes say more than how much fits in your measuring scoop.
Sources
EFSA – Scientific Opinion on Creatine
NIH Office of Dietary Supplements – Creatine Fact Sheet
Kreider RB et al. International Society of Sports Nutrition Position Stand: Creatine Supplementation
