Coffee has a ton of antioxidants. These antioxidants fight against free radicals in the body who are on a war path of destruction to your cells. The list is long, so I'll summarize in a picture!
Now with anything good for you, there is a bad side. Coffee can increase anxiety levels if you are already an anxious person. It can interfere with sleep cycles, and it can raise your blood pressure, especially if you already have high blood pressure. Most experts and doctors agree that 5-6 cups a day should be the limit. Personally, I don't know how you drink that much coffee, but if you think in serving sizes, a Venti Coffee would be 2 1/2 servings in one cup, so I suppose some people would have no problem exceeding a safe and healthy amount of coffee!
Also, jut to clarify, by coffee, I mean the black and plain variety. Having a latte, cappuccino, mocha, etc changes things. Now you're adding milk, syrup (SUGAR) and calories. Am I hating? NOPE. I'm on a mission to make a healthy mocha that tastes good but doesn't kill my macros and calories for the day. Use skim milk, and have it as plain as you can. This is my struggle- I love the flavors! But I am training myself to enjoy coffee flavor and not simply mask it. Maybe in a month I can drink plain coffee with just a bit of creamer but until then I'm on the espresso train!
Keep your eyes peeled on my fb and instagram accounts for my healthy-espresso approved recipes! Also try almond and coconut milk instead of regular. Try new things!! I am :D