No one can say for certain whether two cups of coffee a day is good or bad for your liver. The truth is, it probably depends on the individual. Some people may be able to drink two cups of coffee a day with no ill effects, while others may find that even one cup is too much.
There are a few things we do know, however. First, coffee is a diuretic, which means it can cause you to urinate more frequently. This can lead to dehydration if you're not careful to stay hydrated throughout the day. Second, coffee contains caffeine, which is a stimulant. Too much caffeine can lead to anxiety, insomnia and other health problems.
So if you're worried about your liver, it's probably best to limit yourself to one cup of coffee per day - or maybe even less. And be sure to drink plenty of water during the day to counteract the diuretic effect of the coffee.