The good thing about pure dark chocolate is that it can help you lose weight, give you energy, doesn't catch fire, etc. The bad thing is that eating too much of it can cause digestive problems.

Pure dark chocolate is high in saturated fat, but the saturated fat in chocolate does not raise your cholesterol levels. Over the past few years, researchers have discovered that chocolate contains steroids, which are healthy ingredients found in green tea and red wine. Many studies now show that dark chocolate is especially good for one's health.

Eating pure dark chocolate can also make people smarter. Scientists from the University of Nottingham have found that eating foods such as chocolate sharpens the mind and can lead to short-term improvements in cognitive ability. The research team, led by Professor Ian Macdonald, found that consuming a cocoa drink rich in flavanols, a key ingredient in dark chocolate, boosted the rate of blood flow to some important areas of the brain for two to three hours. And increased blood flow to some specific areas of the brain can help improve brain capacity as well as sharpen a person for a short period of time.

But no matter what you eat, it's important to eat in moderation, and if you eat too much chocolate you can have digestive problems. Like all foods with more fat (30% or more), too much chocolate can cause stomach pains (such as stomach aches, bloating, diarrhea, or constipation). This is especially true of light chocolate, which has more fat and contains more polyols (too much of which can cause stomach cramps or diarrhea).