Many people are willing to try almost anything to improve their mental well-being. While new medicines often dominate the conversation, researchers are also taking a closer look at familiar supplements that have long been associated with physical performance.
According to researchers from the University of Ottawa, whose review was published in Brain Medicine and highlighted by Genomic Press, creatine is now being investigated for its potential role in depression treatment, reports Science Daily.
Creatine has been a staple in the fitness world for years, but scientists are now exploring whether its benefits could extend beyond muscle growth. Although the early findings are encouraging, experts stress that the evidence is not yet strong enough to change clinical practice.
What the research found
The researchers reviewed five randomized clinical trials involving 238 participants from countries including the United States, South Korea, Brazil, Israel and India. Rather than conducting a new study, they analyzed existing research to determine whether creatine consistently improved symptoms of depression.
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The results were mixed. Two studies involving women with major depressive disorder reported improved outcomes when creatine was added to standard treatment. However, three other trials found no meaningful difference between creatine and a placebo.
Why scientists are interested
Researchers believe the brain's high energy demands may explain why creatine is worth investigating. The supplement helps cells produce adenosine triphosphate (ATP), the body's main energy source, and scientists suspect this process could also influence brain function.
There is also growing interest in whether creatine affects neurotransmitters such as dopamine and serotonin, which play important roles in regulating mood. However, researchers emphasize that these theories still require much stronger scientific evidence.
More research needed
The review concludes that it is too early to recommend creatine as a treatment for depression. The existing clinical trials were relatively small and differed in both design and quality, making broad conclusions impossible.
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Larger and longer studies will be needed before doctors can determine whether creatine has a genuine place in depression treatment. For now, it remains a promising area of research rather than a proven solution.
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