Originally Posted by
sac02
or is it fundamentally different somehow? I know salt makes you retain water, and I've noticed that if I have a lot of sodium one day (say a couple large pickles in the afternoon, and sushi (with soy sauce) for dinner) I'll weigh in the next morning a couple pounds heavier from retaining some water weight.
I've noticed this as well. The day after eating pizza or just about any restaurant meal my weight will jump by up to 3lbs the next morning. It will then return to normal after a couple of days. It would seem to me that the additional weight is primarily water that is stored due to the high sodium levels of the previous day. Since you lose water and sodium while riding it's not clear to me why the extra few lbs of water doesn't provide an additional store of fluids for the next day's ride and lowers the amount of water and salt that need to be replenished.