Creatine mental health research – overview
- Creatine’s popularity is expanding beyond sports nutrition into wellness
- New review examined five depression trials involving creatine supplementation
- Two trials showed benefits, while three reported no effects
- Researchers cite biological mechanisms supporting further depression investigations
- Findings could widen creatine opportunities across food and beverage
Creatine is the functional ingredient of the moment.
Once confined to sports nutrition, the performance-enhancing compound is rapidly moving into the mainstream, fuelled by growing consumer interest in strength and healthy ageing.
And brands across categories, including beverage, snacking and confectionery, are racing to capitalise on the trend, which is now gaining further momentum thanks to research linking it to mental health benefits.
What is creatine?
Creatine is a naturally occurring compound found in muscle cells. It plays a crucial role in producing energy during high-intensity exercise.
Foods containing creatine:
- Red meat
- Poultry
- Fish
- Some dairy products such as Parmesan cheese
- Some vegetable such as spinach
- Nuts and seeds
- Legumes
The body's liver, pancreas and kidneys can also make approximately one gram of creatine per day.
Could creatine aid mental health?
Creatine has long been associated with strength training and muscle growth, making it one of the most popular and extensively researched sports nutrition supplements on the market.
But muscles are not the only tissues that depend on creatine for energy. The brain also relies on the same cellular energy system, leading scientists to speculate that creatine could aid mental health.
That hypothesis has prompted growing interest among researchers, with a new systematic review from the University of Ottawa examining whether creatine could play a role in treating depression.
Researchers analysed previously published studies, identifying six reports which covered five randomised controlled trials. Four of the trials focused on people with major depressive disorder, the fifth involved participants experiencing depressive episodes related to bipolar disorder.
Though the findings were far from conclusive.
Two of the five trials, both based on the same study of individuals with major depressive disorder, reported meaningful improvements.
The remaining three trials, however, found no measurable benefit.
Despite this, researchers are keen to continue looking into the impact of creatine on mental health, stating there are biological reasons to investigate it as a potential treatment for depression.
The brain consumes large amounts of energy relative to its size, with creatine helping cells regenerate adenosine triphosphate, the molecule that powers many cellular processes. This has led researchers to investigate whether disruptions to the brain’s creatine system could play a role in mental health conditions. Previous studies have found changes in brain creatine metabolism among people with mood disorders, raising the possibility that disrupted energy production could contribute to depression.
Creatine may also influence dopamine and serotonin, two neurotransmitters commonly targeted by antidepressant medications.
Even so, the researchers emphasise that these connections remain theoretical.
“The signal is interesting, but it is not a verdict,” says Bassam Jeryous Fares, first author of the review and student at the University of Ottawa. “Two trials pointed one way, and three pointed another. That is not the kind of evidence on which you change clinical practice. It is the kind that tells you the question is worth further exploration.”
Nicholas Fabiano, corresponding author and psychiatry resident at the University of Ottawa, also cautioned that the findings should be seen as an early indication rather than a definitive conclusion.
“Creatine appears to be a safe intervention,” he says. “The adverse events we found were limited to mild gastrointestinal discomfort. We cannot yet reliably say that creatine helps with depressive symptoms or if the findings are generalisable to everyone.”
To better understand creatine’s potential, the researchers are calling for further clinical trials. They also recommend studying creatine alongside exercise and investigating whether different doses produce different results, while recognising that higher doses may not necessarily be more effective.
Opportunities for food and beverage
The findings could have implications for the food and beverage industry. While creatine is already well established in sports nutrition, evidence suggesting a potential role in mental wellbeing may help broaden its appeal to a wider consumer base, including older adults, busy professionals, and consumers seeking everyday wellness benefits.
That expanding consumer interest is already prompting brands to experiment with a wider range of product formats. Manufacturers have increasingly been exploring creatine fortification in formats beyond traditional powders, including ready-to-drink beverages, snack bars, gummies and confectionery.
This growing product innovation comes as brands seek to position creatine as more than just a sports nutrition ingredient.
Although the science linking creatine to mental health remains preliminary, the emerging research could provide brands with another avenue through which to communicate the ingredient’s benefits, subject to local regulatory requirements around health claims.
