It was water and glycogen. When I'm running low carb (for whatever reason) and have a carb refeed, I routinely gain 8-10 pounds in a 24 hour period. Same for

It was water and glycogen. When I'm running low carb (for whatever reason) and have a carb refeed, I routinely gain 8-10 pounds in a 24 hour period. Same for people making a weight for powerlifting/boxing/wrestling. They manipulate their water/salt, getting all the glycogen out of their system before reintroducing them to "pump" them back up etc etc