Is creatine worth taking? An honest look
It's the most-studied sports supplement on earth, it's cheap, and the myths around it refuse to die. Here's what 25+ years of research actually says.
Creatine is having a moment again in 2026 — popping up in conversations about strength, aging and even brain health. The hype can be confusing, so let's separate what's well-established from what's still speculative.
What creatine actually does
Creatine (specifically creatine monohydrate) helps your muscles produce quick energy for short, intense efforts — think lifting, sprinting, or the last hard reps of a set. Paired with strength training, it reliably supports small gains in strength and muscle over time. It is not a stimulant, not a steroid, and not a shortcut that works without training.
The basics
- What it helps: brief, high-intensity exercise and training adaptations.
- Standard dose: 3–5 grams per day, every day.
- Loading (optional): ~20 g/day split into 4 doses for 5 days fills your stores faster — but plain 3–5 g/day gets you there in a few weeks too.
- Timing barely matters — consistency does.
Is it safe?
This is where the myths live. According to decades of research summarised by sports-science bodies, creatine monohydrate at recommended doses shows no evidence of harming the kidneys, muscles or hydration in healthy people. Much of the old fear traces back to misreported cases from the 1990s, not to the supplement itself. The "water weight" people notice is fluid drawn into the muscle, not bloating.
The honest exception: if you have kidney disease or another medical condition, talk to your doctor first.
What about the bigger claims?
Interest in creatine for brain health, cognition and healthy aging is genuinely growing, and early research is promising — but it's less settled than the muscle and strength evidence. Treat those as "worth watching," not proven.
Who should consider it?
- If you strength train and want a small, reliable, cheap edge — it's one of the few supplements with strong evidence.
- Older adults trying to preserve muscle alongside resistance training may benefit.
- If you don't train at all, it won't do much on its own.
The bottom line
Creatine is rare: cheap, extensively studied, and genuinely effective for the right person. If you lift weights, 3–5 g of creatine monohydrate a day is a low-risk, evidence-backed choice. If you don't train, save your money — it's a multiplier, not magic.
Sources
- International Society of Sports Nutrition (ISSN) — Position stand on creatine.
- Gatorade Sports Science Institute — Safety & efficacy of creatine: 25 years of research.