Sweden’s Vipeholm experiments and the Intervision Song Contest

Max Pearson presents a collection of the week's Witness History interviews from the BBC World Service. Our guest is Dr Elizabeth Abbott, writer, historian and author of the book, "Sugar: A Bittersweet History".

First, we confront the dark history of sugar.

We hear how a researcher in the 1990s uncovered the unethical aspects of Sweden’s Vipeholm experiments in the 1940 which led to new recommendations for children to eat sweets just once a week.

And, how Mexico, a country which had one of the highest rates of fizzy drink consumption in the world, ap...