I avoided creatine for years because of exactly the stuff you've probably heard — it's "not natural," it bloats you, it's bad for your kidneys, it's basically steroids for people too nervous to just say that. None of that turned out to be true. It's one of the most studied supplements in existence, and once I actually looked at the research instead of the gym-changing-room version of it, it became the one supplement I'd actually recommend to someone who wants to take precisely one.
This isn't a sales pitch for a specific brand. It's what the actual evidence says creatine does, how much to take, and how to cut through the noise around it.
What Creatine Actually Does
Creatine increases your muscles' stores of phosphocreatine, which your body uses to rapidly regenerate ATP — the energy your muscles burn through first during short, intense effort like lifting, sprinting, or any explosive movement. More phosphocreatine available means more fuel for those efforts before you fatigue, which is why creatine's biggest, most consistent effect is on strength and power output, not endurance.
Over weeks of training, that translates into being able to do slightly more reps or slightly more weight, session after session — which compounds into meaningfully more muscle and strength over months, simply because you're able to train a bit harder each time.
How Much to Actually Take
The research-backed maintenance dose is 3–5g of creatine monohydrate a day, taken consistently. That's genuinely it — no complicated protocol, no specific pre- or post-workout timing required, since creatine works by saturating your muscle stores over time rather than acting like a stimulant that needs to hit at a particular moment.
A loading phase — around 20g a day, split into four doses, for 5–7 days — saturates your muscle stores faster, but it's optional. Skip it and take 3–5g daily instead, and you'll reach the same saturation point in about three to four weeks. Loading just gets you there sooner; it doesn't change the end result.
The Bloating and Kidney Myths, Actually Addressed
The "bloating" people describe is water being drawn into the muscle cells themselves, not under the skin — it's part of how creatine works, not a side effect to be alarmed by, and it isn't the puffy, under-skin look people picture when they hear "water retention."
The kidney concern comes almost entirely from one thing: creatine raises creatinine, a marker doctors use to estimate kidney function on a standard blood panel. In someone taking creatine, that's an expected, harmless result of supplementation, not a sign of kidney strain — but it's worth mentioning to a doctor reading your bloods so they don't misread it. In people with healthy kidneys, the research consistently shows no evidence of kidney damage from standard creatine doses, even over years of use.
Which Type Actually Works
Creatine monohydrate. Not the "buffered," micronised, or HCl versions marketed as superior — monohydrate is the form almost all the research has actually been done on, it's cheap, and nothing else has been shown to outperform it. If a product's main pitch is a fancier version of creatine, that's a sign to save your money, not a sign you've found something better.
Frequently Asked
How much creatine should I take per day?
3–5g of creatine monohydrate daily, taken consistently. Timing around training doesn't meaningfully matter — what matters is taking it every day so your muscle stores stay saturated.
Do I need to do a loading phase?
No — it's optional. A loading phase (around 20g a day for 5–7 days) saturates your muscles faster, but skipping it and taking 3–5g daily gets you to the same place in about three to four weeks.
Is creatine bad for your kidneys?
In people with healthy kidneys, no — the research consistently shows no kidney damage from standard doses, even long-term. It does raise creatinine on blood tests, which is an expected result of supplementation, not kidney damage, but worth mentioning to a doctor reading your results.
Does creatine cause bloating?
It draws water into your muscle cells, which is part of how it works, not the puffy under-skin bloating people often picture. It isn't the same thing as water retention from, say, excess salt.
This kind of thing — cutting through supplement noise and building a training approach that actually holds up — is exactly what we cover in 1:1 coaching, alongside the rest of the training guides.