I always found it intriguing that some people can have the discipline to make big changes to their day to day routine based on some learned trivia, but don't have the discipline to actually learn the subject.
That's pretty uncharitable. Celery juice is used specifically because it's confusing and misleading - you shouldn't have to have a scientific degree to decode a nutrition label, but here we are.
Ah, the old, "I've sworn off carbs. I might give up sugar too at some point, but one thing at a time," said while eating falafel.
"Beans can't have protein. That doesn't make any sense. Protein is what meat has."
I have spoken to two different people with no connection between them who thought that beans had no carbs and no protein, they were "different," because carbs were grain things and protein was meat. I wouldn't normally judge people for ignorance, but both of those people used the terms "carb" and "protein" while expressing extensive and very strongly held beliefs about nutrition. They are not much different from anti-vaxxers in my book.
