Creatine for Dementia: Most of the Evidence Comes From Animals
Graded Preliminary — a systematic search found only six eligible studies, almost all in animals or cells, and no randomized trial in people.
- Design
- Systematic review
- Participants
- 6
- Duration
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- Funding
- Authors report no competing interests.
Whether creatine helps in dementia is open, because the evidence comes mainly from animal studies and one pilot study of 20 people.
Creatine helps cells supply energy quickly. That is why scientists and the public are increasingly interested in it as a possible approach to dementia. A new review shows how thin the evidence still is.
The researchers searched four large medical databases and screened 8,317 records. Six studies met their criteria: one in cells, four in animals and one small pilot study with 20 people. Most animal studies found that creatine protected nerve cells. One rodent study, however, found worse spatial memory. In the pilot study, participants took 20 grams a day for eight weeks. Afterwards, creatine levels in their brains were 11 percent higher, and they did better on tasks of flexible thinking.
The review found no study in which people were assigned at random to creatine or a comparison. So whether creatine helps in dementia cannot be said yet. One pattern stood out: in one rodent study, females benefited while males leaned toward harm. The authors call for larger trials that analyse women and men separately.
Conflict of Interest Disclosure: Authors report no competing interests.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.