Putting to rest the myth of creatine supplementation leading to muscle cramps and dehydration.
Level 5 - mechanism / opinion, no new human data
Narrative review without systematic methodology
PubMed 18184753 · doi:10.1136/bjsm.2007.042473
What was done
This narrative review examined published literature evaluating the safety of creatine supplementation, specifically assessing claims and clinical position statements regarding its potential link to muscle cramps and dehydration in hot environments.
What was found
The abstract reports no numerical data or effect sizes. It states that published research refutes the claim that creatine causes cramping and dehydration, and notes that recent studies report creatine may maintain haematocrit, aid thermoregulation, reduce exercise heart rate and sweat rate, and positively influence plasma volume during dehydration onset.
Why it matters
The paper challenges past advisory statements (such as the 2000 ACSM position statement) and common public assumptions warning against creatine use in hot conditions.
Limits
This is an unsystematic narrative review with no formal search strategy, study quality assessment, or quantitative pooling provided in the abstract. Specific participant numbers, dosing regimens, and statistical comparisons are not reported.
Cited by
- supports The creatine molecule does not stimulate urination or act as a diuretic.