By contrast, there are 100 to 150 milligrams of caffeine in an eight-ounce cup of brewed coffee. You would have to eat more than a dozen Hershey bars, for example, to get the amount of caffeine in one cup of coffee. Chocolate has long been heralded for its value as an energy source. It is reported that Napoleon carried chocolate with him on his military campaigns, and always ate it when he needed quick energy. Ten percent of U.S. Recommended Daily Allowance of iron is found in one ounce of baking chocolate or cocoa.
Chocolate can be lethal to dogs.
Theobromine, an ingredient that stimulates the cardiac muscle and the central nervous system, causes chocolate's toxicity. About two ounces of milk chocolate can be poisonous for a 10-pound puppy. U.S. consumers eat 2.8 billion pounds of chocolate annually, representing nearly half of the world's supply.