From my point of view, and I've read post's on here for prob past 7 years and I don't think diet has jack shit to do with it, many people on here are very healthy....
Look at the logic if u had bad shit internaly then u would have many other problems apart from EC, it's common sense!
But then EC is peeling of the lips with no explanation with no other health problems.
Some peeps have EC becuase they are ill and dry lips is a side affect of serious illnes hence sometimes the reference of HIV to EC.
But in the main we don't know what the f*** this shit is really caused by........