I would imagine it has more to do with its principal function in recycling ADP back to ATP (fuel for cells). People who are sleep deprived also have impaired glucose metabolism, meaning that the cellular "fuel pipeline" is impeded. Perhaps creatine is especially helpful under these conditions.
Hypothetically, more water retention would mean that the fluid being flushed is less concentrated, and if the flushing mechanism is triggered by a certain concentration level then it'll happen less frequently.
Hard to imagine that it would be worth more than a few percent though.
Citizen8396|4 months ago
https://pmc.ncbi.nlm.nih.gov/articles/PMC1991337/
jorvi|4 months ago
huemaahn|4 months ago
pawelduda|4 months ago
zer00eyz|4 months ago
You need to take it for a while for it to build up, and for water to accumulate in cells.
It would also be disgusting in a cup of coffee!
layer8|4 months ago
regularfry|4 months ago
Hard to imagine that it would be worth more than a few percent though.