Health Matters by International Medical Clinic Singapore

Summary

Muscle, Mind & Ageing: What’s the Deal with Creatine?

- written by Dr Kym Chew
 
A supplement once known mainly to gym enthusiasts is now being studied for its potential role in muscle strength, brain function and healthy ageing.
 
If you’ve spent any time around a gym, you’ve probably heard someone mention creatine. For years it has been the supplement of choice for bodybuilders chasing bigger muscles and stronger lifts.
 
But lately, creatine has been appearing in a very different conversation - healthy ageing and brain health.
 
As a general practitioner, I’m increasingly asked about creatine in clinic. It is not just for muscle strength, but also for its potential role in cognitive function and healthy ageing.
 
Creatine is a naturally occurring compound stored in our muscles and brain. Its main job is to help produce ATP, the molecule that provides energy for our cells. Think of ATP as the body’s rechargeable battery and creatine helps keep that battery topped up when our cells need quick bursts of energy.
 
Our bodies produce small amounts of creatine naturally, and we obtain some through foods such as red meat and fish. However, supplementation can increase creatine stores in the body, which is why athletes have used it for decades to support strength and performance.
 
But muscle isn’t the whole story. As we age, we naturally lose muscle mass and strength, a process known as sarcopenia. This decline can affect mobility, balance and independence later in life. Research suggests that when creatine is combined with resistance exercise, it may help older adults maintain muscle strength and lean body mass more effectively.
 
Interestingly, creatine may also support the brain. The brain is one of the most energy-demanding organs in the body, and creatine plays a role in maintaining cellular energy supply.
 
Research suggests that creatine supplementation may lead to small but measurable improvements in cognitive function, particularly in areas such as memory and processing speed. These benefits appear to be most noticeable in older adults or when the brain is under metabolic stress - for example during sleep deprivation or periods of intense mental workload.
 
In younger healthy individuals, however, the cognitive effects appear much smaller and less consistent.
 
Creatine has also been studied as an adjunct treatment in depression, although current evidence suggests the overall benefit is modest and further research is needed. At present, there is no strong evidence supporting its use for other psychiatric conditions.
 
Typical study doses range from 2 to 20 grams per day, although many people who supplement take around 3 to 5 grams daily. Creatine is generally well tolerated in healthy individuals, though mild side effects such as bloating can occur. Anyone with kidney disease or significant medical conditions should check with their doctor before considering supplementation.
 
Creatine isn’t a miracle supplement. But it highlights an interesting link between muscle health, brain energy metabolism, and healthy ageing.
 
The foundations of ageing well remain reassuringly simple: regular exercise, balanced nutrition, good sleep, and managing stress.
 
If you’re considering supplements such as creatine, it’s always wise to discuss this with your doctor first.
 
When it comes to healthy ageing, the goal isn’t just living longer - it’s staying strong in both muscle and mind for as long as possible.