The high carbohydrate content of Asahi Weipin thick buttermilk is the main raw material of buttermilk. According to the relevant public information, the reason for the high carbohydrate of Asahi Weipin thick buttermilk is that the main raw materials of buttermilk are milk and sugar, in which milk contains lactose, while sugar is composed of sucrose and glucose syrup. Therefore, the carbohydrates in this buttermilk mainly come from lactose and sugar. In order to make the buttermilk taste better, the manufacturer may also add some ingredients such as lactic acid bacteria and fruit juice, which may also increase the carbohydrate content.