I have been eating mostly low carb for nearly 8 years now, and I've never given up my coffee. At home on the weekends, I make coffee in a French press with freshly ground beans. I usually drink 2-3 mugs of it. During the week, I go to Starbucks or a local coffee house. In hot weather, I have 4 shots of espresso, iced, with a splash of half and half. In cooler weather, it's a 16 oz. coffee (hot) with a shot of espresso, black. Occasionally more. Every day.

It is a YMMV thing, though.