Chocolate is an energy-dense food: on average, it contains 550 calories per 100 grams, which corresponds to 55 kcal per two small squares (10 g). This is partly because chocolate has a low level of water (between 1 and 5%) 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 for carbohydrates and proteins. Therefore, the more cocoa butter you eat, the more calories you consume. However, the difference between the different types of chocolate remains small (+/- 5% compared to the average). In addition, all types of chocolate are calorific and should be consumed in moderation.