Is creatine safe for older adults?

Creatine has moved from bodybuilding shelves into mainstream healthy aging conversations — and for good reason. It's one of the best-researched supplements available.

What the research says about safety

The International Society of Sports Nutrition reviewed the evidence in a 2017 position statement and concluded that short- and long-term creatine monohydrate supplementation — up to 30 grams a day for five years in some studies — is safe and well tolerated in healthy people, including older adults. Typical doses are far lower.

The main caveat: creatine can raise blood creatinine, a marker used to estimate kidney function. That's usually not a sign of harm, but tell your clinician you take it. People with existing kidney disease should get medical advice first.

Benefits for older adults

Creatine helps muscles regenerate energy during short, intense efforts. Combined with resistance training, studies in older adults show greater gains in strength and lean mass than training alone. That matters because muscle loss affects mobility and independence.

Protein is still the foundation. A large meta-analysis found protein supplementation boosted strength-training gains, with benefits plateauing around 1.6 g/kg/day — see how much protein for healthy aging.

How to take it

• Form: creatine monohydrate — the most studied and least expensive.
• Dose: 3–5 g daily. A loading phase (20 g/day for 5–7 days) is optional.
• Timing: any time of day; consistency matters more.
• Pair with training: follow a plan like strength training after 40.

Choose products with third-party testing, and check with your clinician if you take medications.