Milk and chocolate can't be eaten together. Milk is rich in protein's secret calcium while chocolate contains oxalic acid. If they are mixed together, calcium in milk will combine with oxalic acid in chocolate to form a kind of water-insoluble calcium oxalate. It will not only be absorbed after eating, but also have symptoms such as diarrhea and dry hair, which will affect growth and development. So it is not suitable to eat together.

But this is only a theoretical statement. In fact, chocolate has different milk content, and dark chocolate is cocoa powder; Milk chocolate contains more cocoa and less milk; White chocolate contains less cocoa powder and more milk. Westerners eat a lot of chocolate, and they do not have the above symptoms.

Therefore, according to the taste, moderate mixing of milk (yogurt) should not be a big problem.