Zoe Strimpel explores our relationship with sugar - from the days of the 12th century chronicler William of Tyre when sugar was regarded as 'very necessary for the use and health of mankind' to the 'sugar is evil' attitude of today.

And she reflects on sugar's power to bind generations together and keep history alive. 'My grandmother and I would often bond over a plate of pfeffernusse... powdered gingerbread stuffed shapes from Germany', Zoe writes. 'Recipes for cakes - we are a family of women who love cake - were passed down on yellow, lined paper in stained scrapbooks and closely guarded'.

'And so here I am, 41, and still unable to give up the white stuff.'

Producer: Adele Armstrong Sound: Peter Bosher Production coordinator: Gemma Ashman Editor: Richard Fenton-Smith