The pill taking and/or cutting for bad life style should be banned, many countries where people live they "eat to live" not "live to eat", sadly those who do start slowly slipping into obesity lose all hope of redirection.
There are many secondary reasons for over eating, some use food as "comfort food" after loss of loved one, others just eat whatever they are able to lay their hands on due to fast food deliveries looking appetizing (good selling).
Wishing you well with anyone who joins to take a healthy option under your direction.