quantitative
A man-made version of creatine called cyclocreatine uses the same doorway into cells and turns off the creatine-making enzyme in a similar way, just needing higher amounts to have the same effect.
Evidence from Studies
No evidence studies found yet.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.