Hot chocolate does not have more caffeine than coffee. The average cup of hot chocolate from Starbucks contains 25 milligrams of caffeine; the average cup of plain coffee from Starbucks contains 415 milligrams of caffeine.
Caffeine is the only true drug that is present and occurs naturally in some foods. It is a result of chemical buildup in the food that is not added to the food, unless more is added for the energetic effects. Coffee causes users to have a burst of energy that can be quickly diminished in a way that is similar to a sugar crash. Caffeine is added to soft drinks and energy drinks to help users increase their energy while drinking it. Although it is not as strongly addictive as some of the other drugs that are available, caffeine is addictive. People who consume a significant amount of coffee, or caffeine in any type of drink, on a regular basis usually undergo some type of withdrawal symptoms when they suddenly stop drinking the coffee. Headaches, sleepiness, irritability and lethargy are among the most common symptoms of caffeine withdrawal. These symptoms do not last a long time and will go away when the person's body is adjusted to the lack of caffeine.