@johnzajac I'm guessing they can use people whose conditions force a very low sodium diet as comparators, and maybe people who are cooking from scratch a lot with low-sodium alternatives for flavour. But the WHO do say the majority of the world is eating more than their guideline. Their evidence base for that is here: https://iris.who.int/bitstream/handle/10665/77985/9789241504836_eng.pdf?sequence=1