Creatine guide
Is creatine safe?
Creatine is one of the most popular, and most questioned, supplements in any gym. Here is what the research actually says about creatine monohydrate for healthy adults, and who should check with a doctor first.
By the team at Pro Elite NutritionServing Maplewood lifters since 2012Published July 17, 2026
The short answer
The basics
What is creatine?
Creatine is a compound your body makes on its own and also gets from foods like red meat and fish. Most of it is stored in your muscles, which your body draws on during short, hard efforts like lifting or sprinting. Creatine monohydrate, the form in most tubs on the shelf, is one of the most researched sports supplements, and it may support strength and high-intensity performance and muscle creatine stores. It is not a hormone or a steroid.
The evidence
What does the research actually say?
Creatine is one of the most studied supplements in sports nutrition. The International Society of Sports Nutrition (ISSN) position stand and the NIH Office of Dietary Supplements both describe creatine monohydrate as well-tolerated in healthy adults at recommended doses of 3 to 5 grams per day. That track record is why it shows up in so many programs: it may support strength and high-intensity performance and muscle creatine stores. It works alongside real food and consistent training, not instead of them.
Where this comes from
- International Society of Sports Nutrition (ISSN) position stand on creatine supplementation and exercise.
- NIH Office of Dietary Supplements (ODS), fact sheet on dietary supplements for exercise and athletic performance.
The big question
Is creatine bad for your kidneys?
Everyone's health is different, and some questions belong with a medical professional rather than a supplement label. If you have kidney disease or any medical condition, talk to your doctor before taking creatine.
Typical dose
What dose does the research reference?
The ISSN and the NIH Office of Dietary Supplements describe creatine monohydrate as well-tolerated in healthy adults at recommended doses of 3 to 5 grams per day. Always follow the dose printed on your product's label, and ask your doctor what is right for you.
Ask first
Who should check with a doctor first?
Creatine is well-tolerated in healthy adults, but healthy adults is the key phrase. A quick conversation with your doctor or pharmacist settles any doubt, and it is the right call if any of the situations on the right apply to you.
Talk to your doctor if you are
- Kidney disease or reduced kidney function
- Pregnant or nursing
- Under 18 years old
- Taking prescription medication
- Managing any ongoing health condition
Creatine FAQ
Creatine safety FAQ
Is creatine safe for healthy adults?
- Creatine monohydrate is one of the most researched sports supplements and is well-tolerated in healthy adults at recommended doses of 3 to 5 grams per day, according to the ISSN and the NIH Office of Dietary Supplements. If you have a health condition, are pregnant or nursing, or are under 18, talk to your doctor before starting.
What does creatine do?
- Creatine monohydrate is one of the most researched sports supplements and may support strength and high-intensity performance and muscle creatine stores, according to the ISSN. It works alongside consistent training and a normal diet, not instead of them.
Does creatine damage your kidneys?
- The kidneys process creatine, so this is a question for a medical professional rather than a supplement label. If you have kidney disease, reduced kidney function, or any medical condition, talk to your doctor before taking creatine.
How much creatine should I take?
- The ISSN and the NIH Office of Dietary Supplements reference a recommended dose of 3 to 5 grams of creatine monohydrate per day for healthy adults. Follow the dose printed on your product's label, and ask your doctor what is appropriate for you.
Is creatine a steroid?
- No. Creatine is a compound your body already makes and that is found in foods like red meat and fish. It is not a hormone or an anabolic steroid.
Which form of creatine is best studied?
- Creatine monohydrate is the most researched form and the one the ISSN position stand focuses on. Newer forms are marketed as upgrades, but monohydrate remains the reference standard for research and value.
Who should not take creatine without asking a doctor first?
- Anyone with kidney disease or reduced kidney function, people who are pregnant or nursing, those under 18, and anyone taking medication or managing a health condition should talk to a doctor before starting creatine.
Ready to add creatine to your stack?
Micronized monohydrate and the recovery staples are on the shelf in Maplewood. Call and Maria will match the right product to your goal, or shop the whole store online.