The light smokes can do the most damage, because it is known people will inhale them deeper.
It is eas for women to eat very little when they are smokers, I knew some old ladies that rarely ever ate and drank coffee and smoked all day and they averaged 1 bowel movement per month.
You need to do a succesful 21 day orange juice fast and break all the bad habits, this would benefit you the most. Smoke in the lungs makes zero sense and nothing herbaly or diet can counter the effects. Smoking is mostly a mental thing, your MIND can stop the day you believe you can/should.