> here is where I get confused

It doesn't seem like you're confused, it seems like you're using that as a rhetorical device to be pedantic.

> I'm not trying to be pedantic, but

Followed by 4 paragraphs of pedantry, after moving the goalposts from "added sugar" to all sugar.

Eat less junk food. Spend less time lawyering the definition of junk food.