Mostly the US is an outlier. Unfortunately, UK property prices, food prices, utilities etc make Silicon Valley look cheep.
The depressing thing is that it'd rise a lot more if supermarkets weren't using their weight to squeeze farmers.
Its true i can't eat steak 4 nights a week as god intended but we manage to scratch cook 3 meals a day for 2 people for £70 a week, £85 with a wine pairing.
If you want to forgo eight different vegetables and four different proteins im sure you can do it for less.
I know too many people complaining "food is expensive" when all they live off is gas mark 6 / 25 mins beige rubbish.
That's not true - UK food is _very_ cheap, and overall living costs are quite a lot less than the UK. Property is the real killer in the UK (and eating out I suppose).