Caffeine Content

• Decaffeinated coffee is not actually caffeine-free. Most decaf coffee contains around 2 to 4 mg of caffeine per cup. This is still a significant drop from the average cup of regular coffee, which can contain up to 175 mg of caffeine.
  
  

Antioxidants

• Decaffeinated coffee contains the same antioxidant content as regular coffee. According to Joe Vinson, Ph.D., a chemistry professor at the University of Scranton, "Americans get more of their antioxidants from coffee than any other dietary source. Nothing else comes close."
  
  

Calorie Content

• Plain decaf coffee contains zero calories. Of course, adding sugar or cream will increase the amount of calories in the drink. Calorie-free natural sweeteners can be used to sweeten coffee without adding calories.
  
  

Benefits

• Decaf coffee is popular among those who enjoy the taste of coffee, but want to avoid caffeine. Caffeine can make some people jittery or anxious, but by drinking decaf coffee those effects aren't an issue. Decaffeinated coffee can also be used as a tool to overcome caffeine addiction by "weaning" off of regular coffee. This can be done by mixing decaf with regular coffee in gradually increasing amounts until only decaf is being consumed.
  
  

Downsides

• Regular coffee has been proven to prevent gallstones, but unfortunately decaf does not share this benefit. Also, during the decaffeination process, flavor is lost from coffee beans resulting in a weaker tasting brew.