Coffee is made from roasted and ground beans. It is available in caffeinated and decaffeinated form. Drinking decaf coffee provides the same taste without the side effects associated with caffeine.
One cup of decaf coffee contains zero calories. Adding cream or sugar does increase the caloric content, but drinking coffee black has no affect on your daily intake of calories.
Nutritional Value of Calories
One cup of decaf coffee contains .24 g of protein, 5 mg of calcium, .12 mg of iron and 12 mg of magnesium. A cup of decaf coffee also has 128 mg of potassium, 5 mg of sodium and 124.2 micrograms of fluoride.
A cup of decaf coffee contains 2 mg of caffeine, a stimulant that affects your central nervous system and metabolism. One cup of regular coffee contains between 95 and 200 mg of caffeine. The McKinley Health Center at the University of Illinois at Urbana-Champaign recommends consuming less than 300 mg of caffeine daily.