Context: I very rarely drink plain water; for some reason I find myself rarely feeling dehydrated at all. My general daily routine is to drink one can of monster ultra energy when i start my work day, and another when i get home from work. They contain no sugar, no calories and only 120mg caffeine, meaning the two cans still keeps me well under my daily caffeine intake limit. However, a lot of days I also don’t drink much else. People keep telling me this is bad for me, but I’m not sure how it’s any worse than people who pretty much only drink coffee?