No, creatine does not stunt height growth. There is no scientific evidence that creatine supplementation affects growth plates, interferes with bone development, or alters the hormones responsible for growing taller during puberty. This concern likely stems from creatine being confused with anabolic steroids, which are an entirely different class of substance with very different effects on the body.
Where the Myth Comes From
Creatine is one of the most widely used sports supplements in the world, and it’s popular among teenage athletes looking to build strength. Because it’s associated with muscle gain and gym culture, many people mentally group it with steroids or other performance-enhancing drugs. Anabolic steroids can cause premature closure of growth plates in adolescents, which genuinely does limit final adult height. Creatine, however, works through a completely different mechanism. It helps your muscles recycle energy faster during short bursts of intense effort. It has no direct effect on sex hormones like testosterone or estrogen, which are what drive growth plate closure.
The British Society of Lifestyle Medicine states plainly: there is no current evidence that creatine negatively affects growth plates or hormonal balance during puberty. The confusion is understandable, but the two substances have almost nothing in common biologically.
What Creatine Actually Does in the Body
Creatine is a compound your body already produces naturally, mostly in the liver and kidneys. It’s also found in red meat and fish. When you take creatine as a supplement, you’re increasing the amount stored in your muscles, which lets those muscles produce energy slightly faster during high-intensity activities like sprinting or weightlifting. That’s the entire effect. It doesn’t alter your skeleton, your growth hormones, or your endocrine system in ways that would interfere with getting taller.
If anything, creatine may support factors related to healthy growth. One study on healthy young adults found that creatine supplementation during resistance training increased intramuscular levels of IGF-1, a growth factor involved in both muscle and bone development, by 78% compared to 54% in the placebo group. IGF-1 is one of the key signals that promotes bone lengthening during adolescence, so this effect, if anything, runs in the opposite direction of the concern.
Creatine and Bone Health in Teens
Research on adolescents aged 12 to 19 has found a positive association between creatine-related enzyme levels and bone mineral density. Higher levels were linked to stronger, denser bones, and this relationship held up even after adjusting for factors like diet, physical activity, body weight, and blood nutrient levels. The association was strongest in older teens (ages 16 to 19) and more pronounced in boys. While this doesn’t prove that taking creatine supplements directly strengthens bones, it does suggest that creatine activity in the body supports rather than undermines skeletal health during the growth years.
Safety Data in Young People
Here’s the honest picture: creatine has a strong safety record in adults, with studies tracking use at doses up to 30 grams per day for as long as five years without detrimental effects. In children with specific medical conditions (like creatine deficiency syndromes), it has been used under clinical supervision for four to six years with no reported adverse events. And in a 16-week study of children with an average age of 7.6 undergoing chemotherapy, creatine supplementation at 0.1 grams per kilogram of body weight per day raised no safety concerns related to growth or development.
That said, there is an important gap. A systematic review published in Frontiers in Nutrition found that no rigorous, controlled studies have been completed specifically examining the safety of creatine in healthy adolescent athletes. The adult data is reassuring, and clinical studies in children with medical conditions show no red flags, but researchers have called for more targeted studies in healthy teens. This doesn’t mean creatine is dangerous for teenagers. It means the specific research hasn’t been done yet to the standard scientists would like.
A Real Concern: Supplement Contamination
While creatine itself doesn’t appear to pose risks to growth, the supplement industry is worth paying attention to. Research indicates that 14% to 50% of sports supplements may be contaminated with banned substances not listed on the label, including anabolic steroids and stimulants. Those contaminants could theoretically affect hormonal balance and, in serious cases, growth. If you’re a teenager or a parent buying creatine, choosing products that carry third-party testing certifications (like NSF Certified for Sport or Informed Sport) significantly reduces this risk.
What Determines Your Height
Your final adult height is overwhelmingly determined by genetics, accounting for roughly 60% to 80% of the outcome. The remaining factors are things like nutrition during childhood, sleep quality, and overall health. Growth plates, the areas of developing cartilage near the ends of long bones, gradually harden and close as puberty progresses. This process is driven by sex hormones, particularly estrogen in both boys and girls. Creatine has no known interaction with this process. Nothing in its mechanism of action touches the pathways that regulate when or how growth plates close.
If a teenager is concerned about maximizing their height potential, the factors that actually matter are getting adequate protein and calories, sleeping enough (growth hormone is released primarily during deep sleep), staying physically active, and avoiding substances that genuinely do disrupt hormonal development, like anabolic steroids or alcohol. Creatine simply isn’t on that list of concerns.