Not Just for Athletes: Creatine's Emerging Role in Mental Health

Reviewed 5/14/26 by the NatMed Clinical Team

Top Takeaways: 

Creatine shows some early promise for memory, depression, and cognitive aging, but current evidence is insufficient to recommend it for these uses. It appears safe for most adults at doses under 5 grams daily with adequate hydration, though patients with kidney problems should exercise caution.

Creatine isn’t just for gym-goers anymore – patients will ask about using it for cognitive function, age-related cognitive decline, and depression. Be ready to discuss these uses.

Does creatine improve cognitive function?

It’s unclear. A meta-analysis of clinical studies in healthy adults and those with chronic disease or cognitive impairment shows that taking creatine monohydrate, 3-20 grams daily or 0.3 g/kg daily, for up to 18 months improves memory but not overall cognitive function, executive function or attention when compared with placebo. When it comes to age-related cognitive decline, some population research is promising, but available clinical data remain conflicting.

Is creatine beneficial for depression?

A meta-analysis of 11 low-quality clinical studies in adults with and without depression shows that creatine slightly improves symptoms – but the benefits are so small they probably aren’t clinically relevant. The World Federation of Societies of Biological Psychiatry (WFSBP) and Canadian Network for Mood and Anxiety Treatments (CANMAT) Taskforce recommend against using creatine for depression until we have more data.

Is creatine safe?

It seems to be safe for most adults – doses of 4-5 grams daily have been safely used for 18 months. Higher doses of up to 10 grams daily have been used safely in preliminary clinical research for up to 5 years. Dehydration is the biggest concern, so make sure patients drink plenty of water. And patients with kidney problems should be cautious as there are concerns it might worsen kidney dysfunction.

What’s the bottom line?

Right now, we don’t have enough data to know if taking creatine regularly will benefit cognitive function, age-related cognitive decline, or depression. But because creatine seems to be well-tolerated by most people, safety concerns are low if patients want to give it a try – just set expectations appropriately. Advise sticking to doses under 5 grams daily for long-term use and emphasize that it’s important to stay hydrated.

Review our recently updated NatMed Pro monograph to learn more.