Short answer: Based on the available research, creatine appears to be safe for teenagers when it's used appropriately. The International Society of Sports Nutrition considers it safe for adolescent athletes under sensible conditions, and studies to date haven't shown harm at recommended doses. The honest caveat is that research specifically in this age group is more limited than in adults, so the responsible approach is to reserve it for older teens with a genuine athletic reason, get the basics (diet, training, sleep) right first, use a quality tested product at a standard dose, and involve a parent - ideally with a word to a doctor or sports dietitian. It isn't necessary for young children or for casual, appearance-driven use.
This is a question parents, coaches, and teenage athletes ask a lot - and it deserves a straight, balanced answer rather than either a flat "no, it's dangerous" or a breezy "sure, go for it." Creatine is already one of the most widely used supplements among teenage athletes, so it's worth understanding what the evidence actually shows and how to think about it sensibly.
What the research says about safety
Creatine has one of the strongest safety records of any supplement in adults, built on hundreds of studies. In adolescents specifically, the picture is reassuring but thinner. A dedicated 2018 review of creatine safety in active adolescents and youth concluded that creatine has a strong safety profile with minimal risk of adverse events, while also being candid that research in this younger population is limited.[1] The studies that do exist - including in adolescents - have not shown harmful effects on kidney or liver function at recommended doses.
It also helps to remember what creatine is: a naturally occurring compound your body makes and that you get from food (mainly meat and fish) at every stage of life, including childhood. It has even been used in paediatric clinical settings for certain medical conditions, generally with good tolerability. That biological familiarity is part of why researchers consider it reasonable to extend the adult safety data to healthy teens.
The International Society of Sports Nutrition takes a supportive position: in its position stand, it states that younger athletes can consider creatine provided a set of conditions is met - which we'll get to below.[2]
Why some organisations are more cautious
Not every body is equally enthusiastic, and it's worth understanding why. Paediatric organisations such as the American Academy of Pediatrics have historically been cautious about supplement use in under-18s. Importantly, that caution has been largely precautionary - rooted in the general principle that dietary supplements shouldn't be routinely recommended to children and adolescents without a specific reason, and in the fact that long-term data in this age group is limited - rather than based on evidence that creatine itself is harmful.
So the two positions aren't as far apart as they first appear. The sports-nutrition view is "safe under the right conditions"; the paediatric view is "supplements generally aren't necessary for kids, so be cautious." Neither is claiming creatine is dangerous. The sensible reading is: it's not something to hand a child casually, but for the right teenager in the right situation, the evidence is reassuring.
The bigger safety issue: product quality
Here's a point that matters more for teenagers than almost anything about creatine itself: the supplement industry has a quality-control problem. Some products are contaminated, under-dosed, or mislabelled, and a minority have been found to contain substances that shouldn't be there. For a young person, the real risk usually isn't the creatine - it's an untested, low-quality product.
This is why choosing a reputable, independently tested creatine matters far more in this context. Look for pure creatine monohydrate (not a proprietary blend), from a brand that publishes its purity or third-party testing. A clean, tested product at a standard dose is a very different proposition from a bargain-bin tub of unknown origin.
If a teen is going to take it: the responsible conditions
Drawing on the ISSN's guidance, creatine use in a teenager is most reasonable when these boxes are ticked:[2]
- They're an older, post-pubertal teen - not a young child or pre-teen.
- There's a genuine athletic reason - serious, structured training for a sport, not casual or purely aesthetic goals.
- The basics are already in place - a good diet, sensible training, and adequate sleep come first. Creatine is a small addition on top of a solid foundation, not a substitute for one.
- They use a standard dose of a quality product - around 3–5 g per day of tested creatine monohydrate. There's no need for high "loading" doses.
- A parent is aware and on board, ideally after a conversation with a doctor or sports dietitian who knows the young person.
| More reasonable | Better to wait / not needed |
|---|---|
| Older, post-pubertal teen | Young child or pre-teen |
| Serious, structured training for a sport | Casual or purely appearance-driven goals |
| Already eating and sleeping well | Diet and training basics not yet in place |
| Quality, tested product at 3–5 g/day | Unverified product or high loading doses |
| Parent aware and supportive | Taken secretly or without guidance |
What about the common worries?
Does it stunt growth or affect puberty? There's no evidence that creatine affects growth, height, or pubertal development. It's a compound the body already produces and stores throughout life; supplementing it doesn't act on the hormones or growth plates involved in development.
Is it hard on a teenager's kidneys? No. The kidney concern is a myth even in adults - creatine raises a blood marker used to estimate kidney function without actually impairing the kidneys, and studies including younger participants show no harm at recommended doses. We cover this in detail in our article on creatine and kidney health.
Will it lead to other, riskier supplements or drugs? There's no good evidence that taking creatine acts as a "gateway" to performance-enhancing drugs. That said, the habit of relying on supplements for results, rather than training and nutrition, is worth steering a young athlete away from - which is exactly why the "basics first" principle matters.
The bottom line
For a healthy, older teenager who trains seriously for a sport, eats and sleeps well, and uses a quality, tested product at a normal dose with a parent's knowledge, the evidence indicates creatine is safe. The caution from paediatric bodies is about supplements in general and the limits of the data, not about creatine being harmful. It simply isn't necessary for young kids or for casual use, and it should never come before the fundamentals of good food, good training, and good sleep. If those conditions are met and there's a real reason for it, a conversation with a parent and a health professional is the right next step - and a clean, well-tested creatine monohydrate is the kind of product to look for.
Frequently asked questions
Is creatine safe for teenagers?
Available research indicates it's safe for adolescents when used appropriately - a genuine athletic reason, a quality product at a standard dose, a good dietary and training foundation, and parental involvement. Data in this age group is more limited than in adults, so a sensible, guided approach is best.
Does creatine stunt growth?
There's no evidence that creatine affects growth, height, or puberty. It's a naturally occurring compound the body makes and stores throughout life.
What age is old enough for creatine?
There's no official cut-off, but guidance generally points to older, post-pubertal teens who train seriously - not young children. Involving a parent and a doctor or dietitian is the responsible way to decide.
How much creatine should a teenager take?
The same standard dose as adults - around 3–5 g per day of creatine monohydrate. High "loading" doses aren't necessary.
Should teenagers take creatine at all?
It's optional, not essential. For a serious young athlete with the basics in place it can be a reasonable, safe addition; for a casual gym-goer or a child, it isn't needed. The foundation of diet, training, and sleep always comes first.
References
- Jagim AR, Stecker RA, Harty PS, Erickson JL, Kerksick CM. Safety of creatine supplementation in active adolescents and youth: a brief review. Front Nutr. 2018;5:115. doi:10.3389/fnut.2018.00115
- Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18. doi:10.1186/s12970-017-0173-z
- Antonio J, Candow DG, Forbes SC, et al. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? J Int Soc Sports Nutr. 2021;18(1):13. doi:10.1186/s12970-021-00412-w
This article is general information, not medical advice. Decisions about supplements for anyone under 18 should involve a parent or guardian and, ideally, a qualified healthcare professional.