In reply to Blizzard:
I read possibly the worst article ever on the bbc earlier this week about how to live on £5 a week.
It was unmitigated bollocks.
Basically it smugly said how they lived on £5 a week. But it was done by the logic of dividing the total bulk costs of product by the amount they used: 1 potato costs £1. But I only used 20% so that's 20p.
One egg only costs 9p (but you have to buy a box of 48 etc)
half a tin of tomatoes from a multipack
1 stick of cellery costs 2p etc etc
So basically you can live on £5-10 a week....If you're happy with borderline malnutrition.
I reckon £40 a week is about the minimum you can survive on with good nutrition. But your average fell runner/triathlete is going to have massively different calorific needs to a 15 year old girl.