It has lots of potassium zinc, magnesium and iron. Magnesium is one of the elements most importantly to muscles and is the one vitamin that I recommend to all my clients to take. Low amounts of magnesium are thought to be the reason why premenstrual women love chocolate.
Chocolate also lowers cholesterol levels and the Vitamin E and B in chocolate are thought to reduce stress levels.
Chocolate enhances mood with the phenylethylamine in the cacao bean raising serotonin (the feel good hormone) levels. This hormone has also been shown to reduce depression, hunger and increase your sex drive. It also stimulates endorphins, another feel good hormone.