I was terrible about it before. Coffee, energy drinks, sugary crap. I drink almost exclusively water and herbal teas, and I've been staying under 20g of sugar most days for the past few months.
I don't know if you're American or not, but I have struggled with just being surrounded with terrible snack choices and meal choices. It's been nice focusing on changing these behaviors.
So for a 200lb man, it'd be 100oz. Just under a gallon.
It seems like a lot at first, and for the first few days I peed a lot, but now it seems normal.
Granted, I'm doing myself a small service by saying 200, but that's just a few covid pounds.