Creatine Supplementation Shows Potential in Reducing Depressive Symptoms, Studies Suggest

Recent research suggests that creatine supplementation might offer some benefits in reducing symptoms of depression, although the evidence remains inconclusive. A systematic review and meta-analysis published in the British Journal of Nutrition found that creatine supplementation was associated with a small reduction in depressive symptoms. The study reported a standardized mean difference of –0.34, equivalent to about 2.2 points on the 17-item Hamilton Depression Rating Scale. However, this was below the minimal clinically important difference of 3 points, and the quality of evidence was rated very low with substantial heterogeneity (I² = 71.3%) ^[1].

Another systematic review published in Brain Medicine highlighted that creatine monohydrate might ease depressive symptoms when added to standard treatments, but results across five randomized trials were inconsistent ^[2].

In one eight-week randomized trial, participants taking 5 g of creatine daily alongside cognitive behavioral therapy (CBT) showed greater improvements in depression symptoms compared to those receiving CBT plus placebo ^[3]. Similarly, another trial found that women taking 5 g of creatine per day in addition to the antidepressant escitalopram for eight weeks experienced larger reductions in depression scores and higher remission rates compared to placebo ^[4].

Creatine’s proposed mechanism in addressing depression is linked to its role in brain energy metabolism. It potentially supports mitochondrial function, ATP production, neuroprotection, and modulation of neurotransmitter systems, as described in narrative reviews and preclinical studies ^[5].

What Is Known

Creatine supplementation has shown potential in reducing depressive symptoms in some studies, particularly when used alongside standard treatments such as SSRIs or CBT. Some trials have reported significant remission outcomes ^[1][2][3][4].

What Remains Unclear

Despite some promising findings, the clinical significance of creatine’s effect on depressive symptoms is disputed. The average effect observed in the meta-analysis was below the threshold for clinical meaningfulness, and the evidence quality was rated very low. Larger, more rigorous trials are needed to confirm these findings and determine the true efficacy of creatine in treating depression ^[1][2].