The ingredient that weighs the most is listed first and the ingredient that weighs the least is listed last. Well, the manufacturers are well within their rights to list ingredients that are called by different names and yet are still the same. If you see the following listed anywhere on the ingredient list, keep in mind that if you added these together, their total might cause them to be within the first three ingredients. Confectioners' sugar is finely powdered sucrose. Corn sweeteners are corn syrup and sugars derived from corn.
Corn syrup is a syrup produced by the action of enzymes on cornstarch.
Dextrose is an older name for glucose. Fructose is sometimes known as fruit sugar or levulose. Galactose is part of the disaccharide lactose. Glucose is sometimes known as dextrose or grape sugar. Invert sugar is a mixture of glucose and fructose formed by the hydrolysis of sucrose in a chemical process.