Exactly, @SilenceInside.
Halfway down the article linked it finally says,
’In the first year of the programme, the drug will be offered to people with a body mass index (BMI) score of over 40 who have at least four other health problems linked to obesity, such as type 2 diabetes; high blood pressure; heart disease; and obstructive sleep apnoea.’
Thats a small cohort of unwell people.