Is there any perfect balance to be struck? Is there a place for these drugs? But also, do we need to look at the harder route in terms of diet, nutrition, exercise and really public health messaging?

I mean, the food industry would be a very good place to start.

I mean, you're starting to see that.

You're starting to see very big food manufacturers responding to, I think, actually the changing tastes of people, which is people want to eat cleaner foods.

They want cleaner labels on their products.

They don't want to be eating palm oils and things like that.

So that is slowly changing.

Would the dream solution be for drug manufacturers to create a drug which people can use, lose the weight, and then they don't need to use again? Or would that be bad economics from them?