Interesting fact about tea:
I give blood regularly (actually pherisis) and was having trouble with my hemaglobin counts being too low. I had been drinking sweet tea instead of coke for awhile. A paramedic friend told me she stops drinking sweet tea a few days before each blood session so I tried it. It worked , my counts went back up. Can't remember details for sure but tea being a dieruetic was 1 of the reasons involved.
my tea (and coke) but I try to switch to water as much as possible now.