Creatine Supplements Show Early Promise for Treating Major Depression

A large review published in July 2026 found early evidence that creatine supplements may help alleviate symptoms of major depressive disorder. The findings add to a growing body of research examining how nutritional supplements might support mental health treatment.

Creatine is a compound found naturally in muscle cells and is widely used by athletes to improve performance. Researchers have been studying its effects on the brain because the compound plays a role in energy metabolism in neural tissue. Some studies have suggested that people with depression show lower creatine levels in certain brain regions.

The review analyzed data from multiple clinical trials and observational studies. Across the studies, participants who took creatine supplements showed measurable reductions in depressive symptoms compared to those who did not. The effects were most pronounced in women and in people who had not responded well to standard antidepressant medications.

Researchers cautioned that the evidence is still preliminary. Most of the studies reviewed were small, and the mechanisms by which creatine might affect mood are not fully understood. The review's authors said the results support conducting larger, well-designed clinical trials before creatine can be recommended as a treatment for depression.

Mental health experts not involved in the review said the findings are interesting but should not lead people to self-medicate. Anyone experiencing symptoms of depression should consult a doctor before adding supplements to their routine.

Creatine is inexpensive and widely available, which makes it an attractive candidate for further study. If larger trials confirm the early results, it could offer a low-cost option to complement existing treatments for people with depression.