Time to think about my diet. A test kit arrives from the NHS screening team who want to inspect a stool sample to see if a hostile cluster of cells is growing in my guts. What I eat horrifies everyone – except me. I live on Bran Flakes and Frosties straight from the box, and I enjoy chocolate bars or digestive biscuits coated with redcurrant jam (Lidl, 51p). Each year I spend about £600 on food – mostly processed pap full of fructose and additives. ‘Chemical rubbish,’ my mother called it. I avoid restaurants because I can do better at home. I like boiled rice or noodles smothered with sauces that glow like the core of a nuclear reactor.

Ketchup is my favourite. The perfect condiment. A delicious creamy blend of sugar and tangy vinegar suspended in a thick scarlet relish. Ketchup is great

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