What is creatine? Uses, Benefits and Risks

Creatine is a natural compound made from amino acids in your liver, kidneys and pancreas. About 95% of it is stored in your muscles, with a smaller amount found in your brain.¹

You also get creatine from foods like red meat and fish. However, the amount provided by diet alone is generally much less than that provided by supplements.

Creatine supplements are usually sold in powder, capsule, or tablet form. The most widely studied and commonly used form is creatine monohydrate.²

Creatine plays an important role in energy production. It helps your body make adenosine triphosphate (ATP), which is the main energy source used by your cells, especially during short bursts of intense activity.

Taking creatine increases the amount stored in your muscles.

So when it comes to short, high-powered efforts like weight lifting, sprinting, or HIIT, creatine can make a real impact—but it doesn’t provide the same benefits for longer, steady-state endurance exercise.

If you’re thinking about adding creatine to your routine, here are five reasons it might be worth it.

1. Improves muscle strength and power

Creatine can increase muscle strength and power output.³Many people find that they can lift a slightly heavier weight or do more repetitions.

2. Aids muscle growth

Creatine may contribute to increasing muscle size.⁴ This is partly due to greater training capacity and partly because creatine draws water into the muscle cells.

A slight increase in body weight is common in the first few weeks. This is usually water stored in muscles, not fat.

3. Aids muscle recovery

Some evidence suggests that creatine may aid muscle recovery after intense exercise,⁵ Allowing more consistent training.

4. May support cognitive function

Because creatine is also present in the brain, researchers are studying whether it could support memory or mental performance in certain conditions as well as possibly help combat conditions such as dementia.⁵ More research is needed before firm conclusions can be drawn.

5. May support certain medical conditions

Creatine has also been studied in several medical conditions that affect muscle strength and energy production. These include hereditary muscle disorders such as muscular dystrophy and other myopathies,⁶ as well as mitochondrial disorders,⁸ Where the body’s ability to produce energy gets impaired.

Researchers have also explored its potential role in neurological conditions such as Parkinson’s disease⁷and multiple sclerosis,⁸ and in age-related muscle loss (sarcopenia). ⁹

While some small studies suggest that creatine may improve muscle strength or reduce fatigue in some groups, results have been mixed and the benefits have not been consistent.

For healthy adults taking recommended doses, creatine is generally considered safe. It is one of the most researched supplements available.

creatine side effects

Possible side effects include:

• Temporary weight gain.

• Swelling.

• Mild stomach discomfort.

These effects are more likely to occur with higher doses. Drinking enough fluids may help reduce digestive symptoms.

There is no strong evidence that creatine causes kidney damage in healthy people using standard doses.

Should you talk to a doctor before taking creatine?

Creatine is a naturally occurring compound that helps your muscles generate energy during high-intensity activity. When taken as a supplement, it can improve strength, power, and muscle mass – especially when combined with structured training.

The main creatine benefits relate to improved exercise performance and increased muscle size. For most healthy adults taking recommended doses, creatine is considered safe, with mild side effects such as temporary weight gain or bloating.

However, creatine is not suitable for everyone. If you have kidney disease, are pregnant, or have a long-term health condition, it is important to seek medical advice before starting a supplement regimen.

Creatine can be a useful addition to a well-balanced training plan – but it is not a replacement for regular exercise and a healthy diet.

Is it safe to take creatine every day?

Yes, taking 3-5 grams of creatine per day is considered safe for most healthy adults. Consistency is more important than cycling on the go.

Does creatine cause hair loss?

There is limited evidence linking creatine to hair loss. A small study suggested it may increase hormone levels associated with male pattern baldness, but this has not been confirmed in larger research. There is no clear evidence that creatine directly causes hair loss.¹⁰

Does creatine harm your kidneys?

In healthy people using recommended doses, creatine has not been shown to harm kidney function. However, people with existing kidney disease should avoid it unless advised by a doctor.

Do you need a loading step?

A loading phase (about 20 grams daily for 5-7 days) can increase creatine stores in the muscles more quickly. However, this is not necessary. Taking 3-5 grams daily will achieve similar levels over several weeks.

Can you take creatine without exercising?

Creatine can increase muscle reserves even without exercise, but most creatine benefits are seen when combined with resistance training.