Does taking creatine actually help me think better?

Can creatine do more than just build muscle? While you might know it from the gym, there is a growing body of research looking at how it affects the brain.

The evidence shows that creatine can give a modest edge in memory and attention for some people ¹. It also improved attention and processing speed ¹.

Most people assume creatine is strictly for physical performance. But the brain, like your muscles, uses creatine to manage energy.

A large meta-analysis (a study that pools results from many trials) of 16 trials found that creatine supplementation had a significant positive effect on memory ¹. It also improved attention and processing speed ¹. Because studies used different doses and durations, the effect sizes are not directly comparable.

In one specific study of 45 young vegetarians, the evidence points toward significant improvements in both working memory and intelligence scores ². Because vegetarians often have lower baseline stores of creatine, the effect in this group was quite noticeable ².

It is not a universal brain boost for everyone.

When researchers looked at a larger group of 123 people, split evenly between vegetarians and meat eaters, the benefit was much smaller ³. The effect on memory tasks was borderline, meaning it wasn't clearly significant in this mixed group ³. This suggests that if you already eat plenty of meat, you might not see the same boost as someone with lower dietary intake ³.

There is reasonable evidence that vegetarians saw memory improvements, though creatine appeared to have no effect on verbal fluency (how easily words come to you) or alertness for anyone ⁴.

Even the benefits seen during stress might be limited to specific situations. There is reasonable evidence that creatine helped maintain mood and performance during 24 hours of sleep deprivation ⁵. But this was a specific, acute challenge, and the small number of participants means we shouldn't assume this applies to daily life ⁵.

If you are a vegetarian or someone facing acute sleep loss, there is reasonable evidence that creatine might offer a small helping hand with memory ², or with mood and performance during sleep loss ⁵.

For the average person eating a balanced diet, the effect is likely much more modest ³. You might see a small gain in how you process information or remember details, but it is not a transformation of your cognitive abilities ¹.

We still don't know if creatine can protect the brain as we age or if it helps people with medical conditions.

While one review of older adults found a link between creatine and better memory and attention ⁶, much of that data came from observing what people already ate, rather than controlled trials ⁶. One recent trial of adults aged 45 to 65 showed some positive markers of cognitive function, but the researchers themselves called these results exploratory ⁷.

Direct evidence that creatine helps prevent or slow down cognitive decline in people with dementia or mild cognitive impairment is still missing ¹.

Whether or not you should add it to your routine is a conversation for your doctor, especially if you have any existing health conditions ⁷. Whether you are browsing the supplement aisle or thinking about your morning routine, remember that these small changes are just one piece of the puzzle.