Sliced Bread - podcast cover

Sliced Bread

BBC Radio 4www.bbc.co.uk

While Sliced Bread takes a break we serve up Toast. A study of the spectacular failures of brands which had promised so much to consumers.

In each episode, the presenter and BBC business journalist Sean Farrington examines one big idea. What did it promise? Why did people back it? Why did they get burnt?

Some of the world’s most successful businesses have also brought us some of the world’s most remarkable failures. So, what led them to be toast? And what can we learn from their stories today? Sean unpicks all the early optimism, hype and ambition. He learns about the tremendous success of a brand before hearing how it faltered, with help from expert commentators and people who were directly involved. How do they view things now and what, if anything, could have been done differently?

The self-made millionaire and serial entrepreneur, Sam White, is alongside him, analysing the missteps that changed a brand’s fortunes and reaching her own, often instructive, conclusions.

From big tech to high street retail and, of course, food, Toast tackles the business ideas that, one way or another, ended up cooked.

Sliced Bread returns for a new batch of investigations on 3 July, 2025. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread.

In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds. For this brand new series of Toast, episodes will be released weekly on Thursdays wherever you get your podcasts. But if you’re in the UK, you can listen to the latest episode on BBC Sounds first, a week earlier than anywhere else.

Toast is a BBC Audio North production for BBC Radio 4.

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Episodes

Caffeine Shampoo

Can caffeine hair products prevent our hair from getting thinner as we get older and, even better, reverse the process? Or does this ingredient just end up going down the plughole? Joining Greg Foot in the studio is Ian Carmichael, Senior Director in Styling at Trevor Sorbie, the Hair Salon, who styles many high profile heads including Her Majesty the Queen?s. Dermatologist Dr Paul Farrant, from Brighton and Sussex University Hospitals Trust, is on hand to put two products through the evidence m...

Apr 08, 202029 min

Goop Lab Special

As the Goop Lab TV series lands in Netflix accounts, Greg Foot and guests look at the scientific evidence for the therapies tried out by Goop staff, including Gwyneth Paltrow herself. Dr James Rucker, lead on the psilocybin trials at King's College, London, talks about psychedelic therapy, and Dr Sarah Davey, Lecturer in Sport & Exercise Science, Oxford Brookes University, discusses the evidence for cold water therapy. To check out if there's any science behind vampire facials and other skin...

Jan 24, 20201 hr 7 min

Sports pain: Taping

We?ve all seen athletes sporting brightly coloured stripes on the backs of their legs ? but is kinesiology tape all it?s cracked up to be? Presenter Greg Foot is joined by Olympic medallist heptathlete Kelly Sotherton, along with consultant rheumatologist Dr Benjamin Ellis and Manchester United FC?s head of physical therapies Prof Michael Callaghan, to ask whether these products can, as some claim, help athletes train for longer and finish stronger?

Feb 27, 201923 min

Sports pain: Gels and sprays

Do topical pain products really relieve aching muscles? Presenter Greg Foot is joined by Olympic medallist heptathlete Kelly Sotherton, along with consultant rheumatologist Dr Benjamin Ellis and Manchester United FC?s head of physical therapies Prof Michael Callaghan, to test the cooling gels and warming sprays that promise to reach deep into painful joints. Presenter: Greg Foot Producer: Marijke Peters Editor: Rami Tzabar Sound Editing: Giles Aspen

Feb 27, 201934 min

Health drinks: Turmeric

Can turmeric lattes prevent memory loss? Greg Foot is joined by Blur?s Alex James and experts to put claims about this ancient Indian spice to the test. Presenter: Greg Foot Producer: Marijke Peters Studio Manager: Sue Maillot Editor: Rami Tzabar

Feb 20, 201920 min

Health drinks: Kombucha

Does kombucha boost your immune system? Greg Foot is joined by Blur?s Alex James and experts to put this fermented wonder drink to the test. Presenter: Greg Foot Producer: Marijke Peters

Feb 20, 201927 min

Winter bugs: Vitamin C and zinc

Vitamin C is one of the most popular products used to combat the common cold. But does it work? Greg Foot reviews the evidence for both vitamin C and zinc to see if they are The Best Thing Since Sliced Bread. He?s joined again by podcaster, rapper and actor Scroobius Pip and virologist Wendy Barclay from Imperial College London. The team will be giving you their Top Tips, backed by real scientific evidence, for beating the winter bugs. Presenter: Greg Foot Producer: Michelle Martin Researcher: A...

Feb 13, 201925 min

Winter bugs: Hand sanitisers

With offices and schools set to a soundtrack of sniffles, science presenter and YouTuber Greg Foot is on mission to find 'The Best Thing Since Sliced Bread' to beat the winter bugs. Joining him for this double episode is rapper, podcaster and actor Scroobius Pip, a man for whom protecting his voice is a professional priority. Under the microscope today are those handy hand sanitisers that promise to stop bacteria and viruses in their tracks. Virologist Wendy Barclay from Imperial College London ...

Feb 13, 201932 min

Skincare: Activated charcoal

Will activated charcoal, which these days can be found in everything from face creams to smoothies, really purify your pores? Science presenter and YouTuber Greg Foot is on a mission to bust marketing BS, looking for the facts behind the fads and challenging products? bold claims with scientific evidence. In the second episode, Greg is joined by actress and beauty blogger Rebecca Humphries, consultant dermatologist Dr Emma Wedgeworth and Cambridge Professor of Chemistry, Melinda Duer to explore ...

Feb 06, 201920 min

Skincare: Collagen

Can collagen face cream reduce wrinkles and make your skin more youthful? Science presenter and YouTuber Greg Foot is on a mission to bust marketing BS, looking for the facts behind the fads and challenging products? bold claims with scientific evidence. In the first episode, Greg is joined by actress and beauty blogger Rebecca Humphries, consultant dermatologist Dr Emma Wedgeworth and Cambridge Professor of Chemistry, Melinda Duer to explore the science behind collagen face creams ? can they re...

Feb 06, 201925 min

Welcome to The Best Thing Since Sliced Bread?

From kombucha to collagen, activated charcoal to sports tape, Greg Foot is on a mission to bust the marketing BS, looking for the facts behind the fads and to challenge a product?s bold claims with scientific evidence. Joined by leading experts and friends from the world of podcasting and social media, Greg investigates the latest crazes to hit the high street to work out if these wonder products really are the best thing since sliced bread. (all subject to updates)

Feb 05, 20192 min
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