An old friend of mine drowns his coffee in creamer and sugar; three creams and eight sugar packets per medium cup, to be exact. Always one to give in to his sweet tooth, he'd much rather consume diabetes in a cup than "bitter coffee." I'm not talking about over-extracted espresso here, folks; just your run-of-the-mill cup of Joe.

Some coffees are naturally bitter, even if brewed to perfection. But, what causes that bitterness? General misconceptions blame caffeine; but the truth to the matter is only 15% of the bitter taste is a result of the caffeine content.

Surprisingly, antioxidants are the perpetrators! That's right; the very ingredients that make coffee good for you may be causing the brew's bitterness. Chlorogenic acid lactones, found in light to medium roasts, and phenylindanes in dark roasts give coffee its bite. And, the darker the roast the more likely you are to notice bitterness in the drink.

Some people say bitterness balances out coffee acidity. But, if you're not a big fan of the taste try sticking to light or medium roasts. It's much healthier than having a cup of sugar, with coffee on the side.

Do you take your coffee black or with sugar? If you add sugar to your coffee, how much do you use?