Why do some breakfast cereals have different serving sizes labeled on pack?
The serving sizes mentioned on breakfast cereals can slightly differ, mainly due to differences in product density. Beyond its nutrients density, it’s also important for the portion size to suit the average cereal bowl. Some types of breakfast cereals, such as mueslis or granolas, are denser than traditional flakes; so a 30g serving could look tiny and unrealistic in a bowl – that's why we use 45g as a reference. These different serving sizes have been defined by the European cereals trade association and consistently applied by all industry members in Europe.