Coffee is perhaps the most well-studied beverage on the planet. It’s difficult to go a month without hearing about a new scientific finding related to one of the world’s favorite drinks.
Because of such a high level of interest, it also shouldn’t come as a surprise that plenty of perplexity surrounds coffee’s complex nature. In addition, there exists a history of scientific studies that seem to suggest coffee links to possible health problems. However, this early observational research regularly viewed coffee consumption through epidemiology and found associations that were confounded by variables such as smoking, poor dietary habits, sedentary behaviors, and products used to adulterate it, such as the use of trans fat-ridden creamers, syrups, and sugars.
Read more here: http://www.isagenixhealth.net/coffee-how-it-went-from-bad-to-good/