I don’t think I can answer this question. It’s a very difficult question, since there are so many factors that go into it.  Let me see if I can make some guesses.  On average, some people have shown that coffee consumption is protective against stroke, and caffeine can reduce the risk of diabetes.
assitant
In general, if you replace food for coffee, that can be bad for you.
assistant
I wonder if a daily cup of coffee, is healthier overall, than avoiding coffee all together?
user
I’m not sure I understand what you’re asking.  You mean, if a cup of coffee on average is better for your health than avoiding coffee all together?
assistant
Yes. I've heard daily coffee is healthier, but caffeine can have a toxicity.
user