Is creatine safe?
- Skip loading and take a steady 3–5 g/day instead
- Take creatine with food and plenty of water
- Split the dose if needed
- Choose a form that's easier on your stomach
Myth: creatine damages your kidneys
In healthy people, there's no evidence creatine harms the kidneys. A 2020 review of 29 trials in women found no deaths, no serious issues, and no significant differences in kidney or liver markers versus placebo. Creatine can slightly raise creatinine (a lab marker) simply because creatinine is a breakdown product of creatine this reflects intake, not kidney damage.
The caveat: if you already have kidney disease, talk to your doctor first. The concern applies to compromised kidneys, not healthy ones.
Myth: creatine causes hair loss
No study has directly shown creatine causes hair loss. The fear traces to a single 2009 study where creatine raised DHT (a hormone linked to male-pattern baldness) by 56% in rugby players but that study never measured actual hair loss, and no research since has confirmed the creatine → DHT → baldness chain. The current scientific consensus is that evidence is insufficient to say creatine causes hair loss.
Myth: creatine makes you fat or “bloated”
Creatine does not add body fat. Any early weight gain is water drawn into your muscle cells not fat and not belly bloat. This intramuscular water is actually part of how creatine works, and it makes muscles look fuller, not puffy. True stomach bloating, when it happens, is short-term and usually caused by large loading doses.
Who should check with a doctor first?
- People with existing kidney disease or reduced kidney function
- People who are pregnant or breastfeeding
- Anyone taking medications that affect the kidneys
- Teens should use under guidance from a doctor or guardian
Sources & Further Reading
- ISSN Position Stand: Safety and Efficacy of Creatine Supplementation (PMC)
- Creatine — Cleveland Clinic
- Creatine: How does it work, is it safe, when should you take it? — Houston Methodist
- Creatine supplementation is safe and beneficial throughout the lifespan (Frontiers in Nutrition, 2025)
