Does creatine help with depression? What the research does and doesn't show

The evidence doesn't support creatine as a treatment for depression. The most complete synthesis of the research to date — a 2025 meta-analysis pooling 11 randomized trials — found an average effect below the threshold researchers consider clinically meaningful, rated the overall certainty of that evidence as very low, and flagged signs of publication bias inflating the result.

What the evidence doesn't support

It doesn't support creatine, at any dose, as a standalone or add-on treatment for major depressive disorder that a person could expect to notice. The literature that exists studied creatine as an addition alongside a person's continued, prescribed antidepressant treatment — never on its own in a general population without a diagnosis. Even in that narrow, add-on context, the pooled result across the available trials fell below the smallest change generally considered clinically important.

What the trials found

A 2025 systematic review and meta-analysis searched four databases for every randomized trial comparing creatine with placebo, with or without a depression diagnosis, and combined 11 trials totaling 1,093 people. The pooled effect size (standardized mean difference of -0.34) works out to roughly a 2.2-point difference on the 17-item Hamilton Depression Rating Scale — under the 3.0-point threshold researchers use as the minimum change that matters clinically, with a confidence interval wide enough to include no effect at all. The certainty of that evidence was graded very low, and the authors found signs of bias favoring creatine when they adjusted for it. A secondary measure, remission, favored creatine (three trials); a different secondary measure, treatment response, did not (two trials).

The individual trial behind much of that positive signal is a 2012 randomized, double-blind trial in 52 women with major depressive disorder, none of whom stopped their prescribed antidepressant: everyone continued an SSRI, and half additionally received 5 g of creatine a day while the other half received a placebo, for 8 weeks. The group getting creatine on top of their SSRI showed a bigger drop in Hamilton scale scores starting at week 2, an effect that held through weeks 4 and 8. It's one 8-week trial in 52 women — not replicated at that size since.

A smaller 2013 pilot told a different story: 18 patients (14 women) who hadn't responded to three weeks of standard antidepressant treatment were given 5 g or 10 g of creatine a day, or a placebo, added to their ongoing treatment, for 4 weeks. Across the group, creatine at either dose showed no advantage over placebo; two women getting creatine did show an early, sizeable drop in symptom scores that the placebo group didn't show, but the authors called the strategy no better than placebo overall in the population they studied.

Questions people ask

Does creatine help with depression?

The most complete synthesis available (11 trials, 1,093 people) found an average effect too small to call clinically meaningful, with very-low-certainty evidence. One earlier trial found a larger effect in a specific group — women with major depressive disorder, taking creatine alongside a prescribed SSRI — but a similarly designed pilot study found no advantage at all.

What dose of creatine was used in the depression trials?

Most trials in the meta-analysis used 3-5 g a day, similar to the standard maintenance range used in sports-nutrition research; the 2012 trial used 5 g a day and the 2013 pilot tested 5 g and 10 g a day. None of this establishes a dose "for depression," since the pooled result across all of them didn't reach a clinically meaningful effect.

Should I stop my antidepressant to try creatine instead?

No trial has tested that. Every trial reviewed here added creatine to a person's continued, prescribed antidepressant — none tested creatine by itself as someone's only treatment. Whether to change a prescribed antidepressant is a decision for the doctor who prescribed it, not a supplement choice.

Is there a difference between creatine for depression and creatine for bipolar depression?

Yes — that's a separate set of trials in a different diagnosis, covered on our ADHD and bipolar disorder research review.

When to talk to a doctor

Persistent low mood, loss of interest, or other symptoms of depression are worth raising with a doctor. Creatine is not a treatment for depression, and nothing in the research above supports using it as a substitute for an evaluation, therapy, or a prescribed medication. If you're taking an antidepressant or any other medication, or are pregnant or nursing, talk to a doctor before adding any supplement.