Assuming it exists at all; I once tried a meta-analysis (https://www.gwern.net/Creatine https://www.gwern.net/Creatine) but the literature is so sparse and the

Assuming it exists at all; I once tried a meta-analysis (https://www.gwern.net/Creatine https://www.gwern.net/Creatine) but the literature is so sparse and the measures so inconsistent it's difficult to reach any conclusion at all.