Source credit: ScienceDaily, reporting materials from Genomic Press, on the peer-reviewed open-access Brain Medicine review “Creatine as a treatment for depression,” published June 30, 2026.
Creatine is already familiar to lifters as a performance supplement, but a new review asks a different question: whether it could one day have a role as an add-on in depression care. The answer, based on the current evidence, is cautious and unsettled.
The review looked at five randomized controlled trials involving 238 participants at baseline. Two trials, both in women with major depressive disorder, reported better symptom improvements when creatine was added to standard treatment approaches. Three other trials did not find a meaningful benefit, including work in treatment-resistant depression, adolescent girls, and bipolar depression.
That split matters. Creatine has a plausible biological rationale because both muscle and brain tissue rely on cellular energy systems, but plausible does not mean proven. The current evidence is too small and inconsistent to treat creatine as a depression therapy, and the review also noted that two participants with bipolar disorder who received creatine developed hypomania or mania.
Why it matters for lifters
Creatine sits at the intersection of gym culture and medical research. Many lifters already use it for strength or power, so mental-health headlines can easily turn into overconfident supplement claims. The useful takeaway is narrower: researchers are studying whether creatine’s role in cellular energy might matter beyond muscle, but anyone dealing with depression, bipolar disorder, medication changes, or persistent mood symptoms should work with a qualified clinician instead of self-prescribing around a headline.
What to watch next
Watch for larger, longer trials that separate major depressive disorder from bipolar depression, track adverse events carefully, and test whether creatine adds anything meaningful when combined with standard care, therapy, exercise, or different dosing strategies. For athletes and everyday gym users, the key question is not whether creatine is popular; it is whether a specific mental-health claim is backed by enough clinical evidence to change practice.
This article is for informational purposes only and is not medical advice. Supplements can interact with health conditions, medications, and clinical treatment plans. Talk with a qualified healthcare professional before using creatine or any supplement for depression, bipolar disorder, or another medical condition.