Bushie does have a problem. I just wish he could see it like we do. No rational person eats something they know will give them headaches for a week. He just had a problem.
You're perfectly happy drinking something you know will give you a headache 7 nights a week. What's the difference? Might as well eat chocolate every day and just ignore the headache
What? What do I drink that gives me a headache 7 nights a week?
Alcohol? The point is... People make silly justifications all the time. Bushie has a food addiction. Offering him advice won't change his mind if a week long headache won't.
He rewards his brain with delicious tasting fats and simple carbs. It would take a very gradual, constant effort to change his lifestyle... Something none of us has the resources or stamina to do.