Should obese men and women be deprived of their benefit payments if they don't lose weight?
A radical new proposal would monitor people to see if they follow exercise regimes prescribed by doctors - with their money being docked if they don't.
It's among the ideas from Westminster Council and a local government think-tank aimed at tackling rising levels of obesity.
Simon Harris reports.
It's already provoked some angry reactions.
Here are some comments on London Tonight's Facebook page:
Passions also ran high on this subject @itvlondon's Twitter page: