I'm up to at least 2 cups of coffee a day, maybe more depending on the size of the mug used. Pretty sure I drink more of it than plain water now which possibly has some side ef--
I used to drink 1.5L of Coca Cola everyday.. and used to finish a pitcher of iced coffee when i worked Canadian Time (10pm-6am Philippine time). But, i had a bad case of gastroenteritis. Coffee makes me shaky. I go clumsy/jittery when i drank too much.
right now i only drink green tea, or honey lemon tea once a day. I feel much better and more functional.