Calories
Chocolate is relatively energy dense, meaning that just a small amount provides a high number of calories. An ounce of dark chocolate contains 170 calories, and an ounce of milk chocolate contains 153 calories. An ounce is just slightly more than 2 tablespoons of chocolate chips, about two-thirds of a regular-sized chocolate bar or one-third of a large bar, so you may find that you can easily consume more than one serving of chocolate and eat more calories than you intend.