ethereal: The norm is that coffee is unhealty. However. . . There are a few cancers that coffee helps prevent. I think instant coffee is unhealty, like anything fake is. Proper espresso coffee is healty. Drink espresso or americano's if you like coffee. Stay away from the instant stuff.
Instant coffee is not unhealthy. The chicory and other additives, however, are certainly not to be reccomended. Pure, natural coffee, is much more expensive yes, but the better route to follow. It does have health-promoting qualities, but like everything in life, moderate usage is essential