Anything relatively natural is good for ya, and in moderation.
Scientists are still figuring out all the anti-oxidants in coffee, and it's effects on diabeetus. (lol sp)
I drink 88 ounces of coffee a week. Each week, every week, no fail. I eat junk food from-time-to-time, but always savory, never sweet.
Fish, seafood, legumes, lean meat, crucifers and whole grains comprise 99% of my diet. Sawbones even comments on it. BP 116/68. Arteries are clear. Overall diet is sound. If something nails me out of the blue, sawbones says it will be cancer, and not a CV disease.
Cold comfort, but anyway.