The caloric contributions of chocolate vary between 490 and 540 Kcal per 100 grams, values that depend on the percentage of milk and butter they contain. The daily recommended amount is 20 grams a day, approximately two ounces, containing about 100 Kcal, a very reasonable figure. As always, it is important not to commit excesses: two ounces are enough to recover energy, increase physical and mental performance and combat the fatigue produced by work or study.
http://www.contextotucuman.com/nota/100962/16_exquisitas_razones_para_comer_chocolate.html
