Is lactose same as sugar

Lactose is a specific type of sugar found in milk and dairy products, composed of two simpler sugars: glucose and galactose. While all lactose is sugar, not all sugars are lactose; there are various types of sugars, such as sucrose (table sugar) and fructose (found in fruits). Therefore, lactose is a distinct form of sugar, but it is not synonymous with sugar in general.