The cost of food is not the issue - it’s just that food is bought after most other things. Food in the UK has long been cheap relative to almost all of Europe - even most of those countries that produce enough to be self-sufficient.

The cost of housing is absurd (whether rent/mortgage) and is the only real driver of poverty in the UK. Even ‘fuel poverty’ at the moment is a bit of a nonsense - people are only struggling with the cost of fuel (directly or indirectly) because their rent/mortgage is too high a proportion of their income.