Would taxing junk food help tackle growing obesity rates?

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Experts writing in the British Medical Journal have called for a tax rate of at least 20% on unhealthy junk food and sugary drinks to help cut obesity and heart disease.

Other countries already have so-called "fat taxes": since the United States introduced one, sales of sugary drinks have dropped dramatically.

BBC Radio 5 live's Tony Livesey spoke to Dr Oliver Mytton, one of the report authors, and to Rob Lyons, the author of Panic on a Plate: How Society Developed an Eating Disorder.

To listen to other Radio 5 live interviews, please visit the Best Bits page.

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