That wasn't my point -- I was confused that there isn't a standard way to compare food content in the US. In Australia, by law, nutritional information contains

That wasn't my point -- I was confused that there isn't a standard way to compare food content in the US. In Australia, by law, nutritional information contains a column with the "serving size", and a column for 100g or 100mL of the product so you can compare similar products much more easily) I can only imagine how difficult it would be to compare the nutrition between two different drinks or foods if they have different container sizes. In other words, you could easily track the change in sugar content over the years if you paid attention to the "per 100{g,mL}" column without having to do any maths.