Here instead is a grab-bag of ideas that would convey the same message, some or all of which will one day be enacted. Ban fast-food outlets from stations and airports. Ban the sale of confectionery and sugary drinks to the under-16s. Ban the sale of over-sugared products in supermarkets (as measured by a ratio of sugar to other nutrients). Ban the bringing into schools of unhealthy foods. Ban the presence in offices (like our own here at The Times) of vending machines that seem to sell mainly crisps and chocolate. Specify a weight-to-height ratio limit on air passengers wishing to avoid a surcharge.