"An objective frame of reference" sounds like it should be standardized. A suggested serving amount is pretty arbitrary and up to the manufacturer to determine,

"An objective frame of reference" sounds like it should be standardized. A suggested serving amount is pretty arbitrary and up to the manufacturer to determine, and is the opposite of "objective". In https://news.ycombinator.com/item?id=40087543 https://news.ycombinator.com/item?id=40087543 I suggested using per 100g or per 100 calories as a reference. Extremely objective and clear.