Chocolate is an energy-rich food: on average, it contains 550 calories per 100 grams, which corresponds to 55 kcal per two small squares. This is partly because chocolate has a low level of moisture (less than 1%) and contains a significant amount of fat, i.e. cocoa butter (naturally present in cocoa beans). Fat is the most energy-dense macronutrient - it provides 9 kcal per gram, compared to 4 kcal per gram of carbohydrates and proteins. Therefore, chocolate is particularly appreciated by people who carry out strenuous physical activity, such as athletes.

Due to the high energy density and sugar content of chocolate, it is important to keep in mind that it is an indulgence product; as with all indulgence products, this means it should be eaten in moderation.