Creatine: the basics, done right
The most-studied supplement in sport — what it is, what it really does, and how to take it without overthinking it.
Short version: creatine helps your muscles produce energy for short, hard efforts, letting you do a little more work in training — which adds up to strength and muscle over time. It's one of the safest, best-researched supplements there is. Take 3–5g a day, every day; skip the loading phase and the myths. Simple as that.
What creatine actually is
Creatine is a compound your body already makes and stores in your muscles, and you get some from food like meat and fish. It helps regenerate the quick-burst energy (ATP) your muscles use for short, intense efforts — a heavy set, a sprint, a hard interval. Supplementing simply tops up those stores so there's more on hand when you need it.
What it actually does
With fuller stores, you can often squeeze out an extra rep or a bit more power in those hard efforts. On its own that sounds small — but across weeks and months, doing slightly more quality work is exactly what drives strength and muscle gains. The research here is unusually strong and consistent: creatine genuinely helps for this kind of training, which is why it's the supplement experts most often point to.
Training does the work — creatine helps you do more of it. It's not a shortcut or a stimulant; you won't "feel" it like a pre-workout. It quietly lets you train a little harder, and the results come from that extra work over time.
How to take it (the simple way)
- Dose: around 3–5g of creatine monohydrate per day — the well-studied, effective form.
- Skip loading: a loading phase only fills your stores faster. Steady daily use gets you there in a few weeks with less fuss.
- Be consistent: daily matters far more than timing. Any time of day is fine.
- Make it a habit: mixing it into a drink you already have every day is one of the easiest ways to never miss it.
Not just for athletes
Creatine's reputation is built on training, but a growing body of research points to benefits beyond the gym — and they matter most as we get older, not in our twenties.
- Muscle, strength and bone in older adults. This is the strongest evidence: when paired with resistance training, creatine improves lean muscle mass, strength and measures of bone health in older adults — useful in the context of age-related muscle loss (sarcopenia). The key caveat is that the training is doing much of the work; creatine helps you get more from it.
- Possible cognitive support. Newer reviews suggest a modest benefit for things like memory and processing speed, and the effect appears more noticeable in older adults and in people whose creatine stores are low to begin with. It's promising rather than proven — results are mixed and overall thinking ability isn't reliably changed — so we'd treat it as a potential bonus, not a reason on its own.
None of this makes creatine a brain pill or an anti-ageing cure. But it does mean the case for it isn't limited to lifters chasing a PB — it's a well-tolerated, inexpensive supplement with real, if modest, appeal as we age.
Myths worth ignoring
- "It's a steroid." It isn't — it's a natural compound found in food and already in your muscles.
- "It'll make me bloated." Any early weight is a little water held inside the muscle, not puffiness. Most people don't notice.
- "You must load it." Optional, and unnecessary for most. Daily 3–5g works just as well.
- "It's only for bodybuilders." It helps anyone doing strength or high-intensity training, across most sports.
Common questions
What does creatine actually do?
It helps your muscles regenerate energy for short, hard efforts, so you can do a little more in training — and that added work supports strength and muscle over time.
Do I need a loading phase?
No. Loading just fills your stores faster. Around 3–5g a day gets you to the same place within a few weeks, with less fuss.
When should I take it?
Timing barely matters — consistency does. Take your daily 3–5g whenever you'll remember it; mixing it into a daily drink helps.
Is it safe, and will it bloat me?
For most healthy people, creatine monohydrate is well tolerated with a strong safety record. Early water weight is small and inside the muscle. With a kidney condition, check with a doctor first.
Does it help with anything besides performance?
Likely yes, especially with age — the strongest evidence is for muscle and bone health in older adults (alongside resistance training). Some newer research also hints at modest memory and processing-speed benefits, mainly in older adults, though that's still mixed and promising rather than proven.
General information, not medical or nutritional advice. If you have a kidney condition, are pregnant, or take regular medication, check with a healthcare professional before starting creatine.