I remember how the whole supermarket thing started to go bad - I remember (almost) the exact moment.
When the first supermarket opened in my town in the 70s it stocked all the foods you could buy at butchers (we had three), the greengrocers (two - one of them owned a market garden and grew all their salads and greens just 10 minutes walk from the shop), the baker (two) and the grocers (four - in those days the co-op had a counter!), but all in one place, plus frozen food (icecream and fish - wonderful).
So you could do all your shopping in one place. Brilliant.
Then something strange happened. Strange, special, exciting. The supermarket offered a fresh "ready-meal" - a fresh mousakka with fresh profiteroles to follow, with a little sachet of sauce to pour over it. Lovely - a real novelty, nearly as good as a resturant dinner on holiday.
And that was it - because selling the ready made moussaka made much more profit than selling lamb, aubergine, cheese, chocolate and cream separately. We all know the value of cheese - we can guess how much is profit and value.
But we couldn't tell what the value of a ready meal was -was XXp a good price? It was slightly cheaper than a restaurant - wasn't that about right. And so convenient!
And the supermarkets and food manufacturers heard heavenly tills chime - "Added value products" meant you could charge twice for food - once for the ingredients, once for the "time and skill" that went into making it.
That's why supermarkets slowly started dropping the space given to raw food and increased the space given to "ready to eat" food - there is much less profit in selling apples and potatoes.
And then, over the next few decades, as the "ready-to-eat" revolution grew in scale - (pizza, salads, ready to roast veg, cakes, choc-mouse, instant gravy....) - and the profits grew even faster and bigger, food manufacturers found a third way of making profit.
I'm pretty sure that first ready-meal we ate, that mousakka and profiteroles, was made with the same flour and sugar and cream and lamb and cheese and milk that we used at home.
But by the beginning of the 80s the cream would have been mixed with maize starch and the moussaka made extra glucose and cheaper tomatoes, all cheaper, all easier and cheaper to mix and store, all making those treats higher in carbohydrate and calories.
I can't claim that's the reason I got fat - I love food, and have always been round, but I do know that 10 years ago, when I shopped at a butcher, greengrocer, bakers and grocer I weighed 9st, and that after 8 years of shopping at Tescos and Sainsburys I weighed almost 14 st.