Substrate ·evidence-based
interventions / Creatine / mood

Does Creatine help mood? (Grade C evidence)

Creatine may modestly help mood in specific populations (Grade C, low certainty), especially in adults with depression. Dose range: 3–5 g/day.

Bottom line. Creatine may modestly help mood in specific populations (Grade C, low certainty), especially in adults with depression. Dose range: 3–5 g/day. [1 RCT]

Direction
benefit
Magnitude
emerging evidence as an adjunct for depressive symptoms; trials small
Grade
C
Certainty
low
Clinical meaning
small but potentially useful
Who it applies to
adults with depression
Dose / form studied
Safety
none identified in this claim
The one limitation
Sample sizes are small in most included trials; effect sizes may shrink with larger studies.

Reviewed · Evidence last changed · Claim clm_ec_b2-creatine-mood v1

Reviewed by Substrate editorial, Independent research collective

Grade
C
what does the grade mean?
Certainty
low
what does certainty mean?

Grade C / low: hints of benefit in small trials; a well-run RCT could easily push this to B or to null.

Who it works for

Best-studied in adults with depression. Effective doses cluster around 3–5 g/day.

Evidence

StudyDesignCite
Does creatine affect lipid profile? a systematic review and meta-analysis of randomized placebo-controlled trials.—PMID:42180567

Why this grade

Reasoning trace

Grade C at low certainty. The grade reflects the direction and size of the effect across the 1 publishable source above; certainty reflects heterogeneity, sample sizes, and design quality. What would move it upward: additional well-powered RCTs in the target population that replicate the effect at similar doses. What would move it down: a large null trial, discovery of publication bias, or a retraction of a keystone study.

Dose & form

Studied intake: 3–5 g/day.

How it stacks up for mood

Grade history

No grade changes yet. Initial grade assigned; re-reviewed on every 6 months (Grade C+). Methodology v1.

Re-review cadence: every 6 months (Grade C+) · methodology v1.

Frequently asked

How long does Creatine take to work for mood?

Trials of Creatine for mood typically report effects within 2–4 weeks, though individual response varies. Studies rarely find benefit inside 1 week for chronic outcomes.

What dose was used in studies of Creatine for mood?

Studied doses for Creatine in mood trials cluster around 3–5 g/day. See the dose block for the specific range and how it varies by form.

Does Creatine work for mood if I'm not deficient?

The effect concentrates in adults with depression. If your baseline is normal, expect a smaller effect than the trial averages.

Creatine or the next-best alternative for mood?

See the compare block above for the head-to-head with the most-cited alternative. Grade + certainty differences matter more than any single trial.

Related

What this is — and is not

Evidence description
emerging evidence as an adjunct for depressive symptoms; trials small
Substrate's interpretation
Grade C at low certainty — the direction and size the studies converge on, as our reading of the corpus.
Discuss with a clinician
If you're on medication or have a condition that changes the calculus, bring the interaction & population blocks above to your pharmacist or prescriber before deciding.
Individualized medical advice
Not provided here or on any Substrate surface (API, agent tool, embed) — see YMYL policy.

Cite this page

Reuse under CC-BY 4.0 with attribution to evidencebased.info.

Plain-text citation
Substrate. Does Creatine help mood? (Grade C). https://evidencebased.info/interventions/creatine/mood. Updated 2026.
BibTeX
@misc{substrate_ventionscreatinemood,
  author = {Substrate editorial},
  title  = {Does Creatine help mood?},
  year   = {2026},
  url    = {https://evidencebased.info/interventions/creatine/mood},
  note   = {Grade C, evidencebased.info}
}

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