Creatine: Not Just for Gym-Goers? A Practical Guide to Benefits, Risks, and Who It’s For

Creatine is one of the most widely researched supplements, yet it’s often misunderstood.

While it’s commonly associated with strength training and bodybuilding, emerging research suggests its benefits may extend far beyond the gym, particularly when it comes to healthy ageing and menopause.

Let’s break down what creatine actually does, who it might benefit, and where a bit more caution is needed.

What is Creatine?

Creatine is a naturally occurring compound found in small amounts in foods like red meat and fish, and it’s also made in the liver, kidneys, and pancreas.

It plays a key role in energy production, particularly during short bursts of high-intensity activity.

About 95% of creatine is stored in muscle, with the rest found in the brain and other tissues.

Benefits for Exercisers

For those who engage in resistance training, sprinting, or high-intensity exercise, creatine is one of the most effective supplements available.

1. Improved Strength and Performance

Creatine helps regenerate ATP (your body’s quick energy source), which can improve power output and training capacity.

2. Increased Muscle Mass

It supports muscle growth both directly (via improved training performance) and indirectly (via cellular hydration and signalling pathways).

3. Better Recovery

Some evidence suggests reduced muscle damage and inflammation following intense exercise.

Benefits for Non-Exercisers

This is where things get interesting. Creatine isn’t only useful if you’re lifting weights.

1. Cognitive Support

Creatine plays a role in brain energy metabolism. Some studies suggest benefits for memory, mental fatigue, and cognitive performance, particularly in times of stress or sleep deprivation.

2. Support for Low Energy or Fatigue

In individuals with low baseline creatine levels (e.g., low meat intake), supplementation may help support energy levels.

3. Potential Mood Benefits

Emerging research suggests a role in supporting mood, particularly in women, though this is still an evolving area.

Creatine, Ageing, and Muscle Health

As we age, we naturally lose muscle mass and strength, a process known as sarcopenia. This has implications not just for mobility, but also for metabolic health and independence.

How Creatine Can Help:

• Supports maintenance of muscle mass and strength

• Enhances the benefits of resistance training

• May improve functional capacity (e.g., balance, walking speed)

Even without formal exercise, there may be some benefit, but the combination of creatine plus strength training is where the most meaningful results are seen.

Creatine and Menopause

Menopause brings hormonal changes, particularly a decline in oestrogen, that can affect muscle mass, bone health, mood, and cognitive function.

Potential Benefits:

1. Muscle and Strength Support

Women may experience accelerated muscle loss during and after menopause. Creatine can help counter this, especially when combined with resistance training.

2. Bone Health

While not a direct bone supplement, improved muscle strength can support bone density indirectly through mechanical loading.

3. Cognitive and Mood Support

There is growing interest in creatine’s role in brain health, which may be particularly relevant during menopause when some women experience brain fog or low mood.

Common Myths About Creatine

“Creatine is only for bodybuilders”

Not true. Its benefits extend to general health, ageing, and even brain function.

“It causes kidney damage”

In healthy individuals, creatine has consistently been shown to be safe at recommended doses. However, those with existing kidney disease should seek medical guidance.

“It causes bloating”

Some people may experience mild water retention initially, but this is typically intracellular (within muscle), not uncomfortable bloating.

“You need a loading phase”

A loading phase (high doses for 5–7 days) can saturate stores more quickly, but it’s not necessary. A consistent daily dose works just as well over time.

Potential Downsides and Considerations

1. Digestive Discomfort

Some people may experience mild GI symptoms, especially with higher doses.

2. Water Retention

Initial weight gain of 1–2 kg can occur due to increased water in muscle cells.

3. Not a Substitute for Lifestyle

Creatine is supportive, not a replacement for good nutrition, movement, sleep, and stress management.

Interactions with Medications and Supplements

Creatine is generally well tolerated, but there are some important considerations:

Medications:

• Kidney-related medications (e.g., certain blood pressure drugs, NSAIDs in high doses): Use caution and seek guidance if there are concerns about kidney function

• Diuretics: May increase risk of dehydration if fluid intake is inadequate

• Metformin: No strong evidence of harm, but worth monitoring as both influence energy metabolism

Supplements:

• Caffeine: High doses may reduce creatine’s effectiveness in some cases, though evidence is mixed

• Protein powders: Safe to combine and often complementary

• Electrolytes: Can be helpful, particularly if training or sweating regularly

Quality Matters

When choosing a creatine supplement, quality matters.

The supplement industry is not tightly regulated, which means products can vary in purity and may contain unnecessary additives, fillers, or even contaminants.

Opting for a reputable brand that uses third-party testing can help ensure you’re getting what you’ve paid for, ideally a simple creatine monohydrate without added ingredients that aren’t needed.

Who Might Benefit Most?

• Women in midlife and beyond

• Those engaging in resistance training

• Individuals with low dietary creatine intake (e.g., low meat or plant-based diets)

• Those looking to support cognitive function or energy

Who Should Be More Cautious?

• Individuals with kidney disease or impaired kidney function

• Those on medications affecting kidney health

• Anyone with a complex medical history (always worth individual review)

Practical Takeaways

• A typical daily dose is 3–5 grams of creatine monohydrate

• Consistency matters more than timing

• Combining with resistance training enhances the benefits significantly

• Hydration is important

Final Thoughts

Creatine is no longer just a “sports supplement.”

It’s increasingly being recognised as a well-researched, accessible tool that may support muscle health, brain function, and healthy ageing, particularly for women navigating midlife and beyond.

As with any supplement, it’s most effective when used alongside a strong foundation of nutrition and lifestyle habits.