According to Zhihu, 72% chocolate is sweeter than 56% chocolate. The sweetness of chocolate is related to the cocoa content. The higher the cocoa content, the bitter the taste. So 72% chocolate has higher cocoa content than 56% chocolate, so it is sweeter. Chocolate is a sweet food, which usually consists of cocoa solids and sugar, and sometimes milk or nuts are added. It is widely used in various occasions, such as festivals, celebrations, gifts and so on. There are many kinds of chocolate, including dark chocolate, milk chocolate and white chocolate, each of which has its own unique taste and use. The main component of chocolate is cocoa solid, which contains a substance called theobromine, which has refreshing and anti-fatigue effects. In addition, chocolate also contains sugar and milk, which provides rich nutrition and energy.