Coffee tends to get vilified, but as you can see, it really can be a healthy addition to the diet.
But, as with anything, moderation is the key.
Too much coffee can certainly cause negative effects, especially if your habit is decreasing the amount of sleep you get or you are consuming too much caffeine. To figure out whether you are, it’s worth taking a look at Healthline, which offers information about caffeine overdosing.
At the same time, you do need to be careful about what you put into your coffee.
This is even true for simple sugar and milk, especially if you are drinking coffee multiple times in a day.