
Health & Fitness
Sliced Bread
BBC Radio 4
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 in July, 2026. 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. Episodes will be released weekly on Thursdays wherever you get your BBC podcasts. But you can listen to the latest episodes, seven days earlier than anywhere else, first on BBC Sounds.Toast is a BBC Audio North production for BBC Radio 4.
Episodes to Learn English227

Ice Baths
Nov 9, 202333 min<p>Do the claims made about Ice Baths hold water?</p><p>Social media appears to be filled with countless people sitting blissfully in small inflatable ‘ice baths’. Fans of such ‘cold water therapy’ claim that taking a chilly plunge will boost your energy levels, reduce your stress, help you sleep better, and supercharge your recovery after a workout. Listener Laura wants to know if the science backs that up. </p><p>In this episode, I dip my toe - and the rest of me - into an ice bath to find out. I'm guided by Professor Mike Tipton at the University of Portsmouth, one of the leading academics in the study of cold water and its effects on the body.</p><p>If you’ve seen an ad, trend or fad relating to another consumer product and wonder if there’s any evidence to back up a claim, then email us: <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send a voice note to our WhatsApp number: 07543 306807</p><p>Presenter: Greg Foot Producer: Simon Hoban</p>

Eco-friendly Toilet Paper
Nov 2, 202328 min<p>How green can your loo roll be? Lots of companies have sprung up offering what they say are the most eco-friendly ways to wipe - and there's a lot to think about. </p><p>Listener Barbara buys recycled toilet paper - and wants to know if she's better off buying one of the bamboo options on the market. Jo already buys bamboo but is curious about the difference packaging and delivery options make.</p><p>To get them some answers, Greg Foot speaks to Shanta Bhavnani from Ethical Consumer magazine, who carried out its 2023 ethical toilet paper guide, and materials expert Dr Eral Bele of University College London, who's studied the properties of bamboo.</p><p>If you’ve seen an ad, trend or fad relating to another consumer product and wonder if there’s any evidence to back up a claim, then email us: <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Tom Moseley</p>

Smart Thermostats
Oct 26, 202328 min<p>Can Smart Thermostats save you money on energy bills?</p><p>Temperatures are falling and conversations are already turning to whether or not the heating has been turned on! Although energy prices have come down a little since last year, the withdrawal of universal Government support to alleviate the cost could mean bills stay high for a lot of people. </p><p>Listener Wendy is already doing a lot to save money (having listened to a previous Sliced Bread episode on Portable Heaters - check it out on BBC Sounds!) but she's keen to know if the addition of a Smart Thermostat might make even more of a difference. </p><p>Are they as clever as they claim to be when it comes to controlling the heating in your home?</p><p>If you’ve seen an ad, trend or fad relating to another consumer product and wonder if there’s any evidence to back up a claim, then email us: <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>

Motion Sickness Remedies
Oct 19, 202327 min<p>Greg Foot gets queasy in the name of science as he investigates the range of products promising to help with motion sickness.</p><p>Do the pills, wristbands or breathing techniques which claim to stop you from feeling sick on planes, trains and automobiles actually work?</p><p>To find out, Greg heads to Professor John Golding's laboratory at the University of Westminster where a spinning chair is used to induce symptoms of motion sickness. </p><p>Why don't scientifically-proven treatments always work for everyone? </p><p>If you’ve seen an ad, trend or fad relating to another consumer product and wonder if there’s any evidence to back up a claim, then email us: <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send a voice note to our WhatsApp number: 07543 306807</p><p>Sliced Bread is a BBC Audio North production for Radio 4 and BBC Sounds. </p><p>PRESENTER: Greg Foot PRODUCER: Jon Douglas</p>

Weighted Blankets
Oct 12, 202327 min<p>Do weighted blankets reduce stress and help you sleep better?</p><p>They’ve gone from a middle-aisle fad to being a regular fixture in supermarkets and online stores. Weighted blankets can cost upto £200 and promise to give you a deeper, more restful sleep. But do they? </p><p>Listener Theresa wanted to know about the science behind them. What is it about the ‘deep touch’ or ‘deep pressure’ stimulation that the manufacturers claim helps us to sleep? They’re also often marketed as offering help with anxiety and autism. Listener Claire runs a support group for children with autism and is keen to know more, so I speak to the lead scientist of a big study into that. And listener Pauline wonders whether there are any health risks associated with weighted blankets?</p><p>Once again this series we’re testing and investigating your suggested wonder-products, so if you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>Presenter: Greg Foot Producer: Simon Hoban</p>

Induction Hobs
Oct 5, 202325 min<p>Induction hobs are not just a fashionable addition to a new kitchen, but are also sold as a more efficient choice than a gas hob. How do they compare? Is cooking on an electric induction hob better for the planet? And what about our health? </p><p>Listener Roisin wants to know if they are an economical choice but worries they might affect her mum's pacemaker, while listener Anna is concerned about indoor air pollution from gas cookers and wonders if induction hobs are a safer bet. </p><p>Greg Foot gets them some answers with expert help from Emily Seymour, the Energy Editor at Which? and Jonathan Grigg, Professor of Paediatric Respiratory and Environmental Medicine at Queen Mary University of London. </p><p>If you’ve seen an ad, trend or fad relating to another consumer product and wonder if there’s any evidence to back up a claim, then email us: <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Jon Douglas</p>

Vapes
Oct 2, 202333 min<p>Is vaping harmful to your health and to the environment?</p><p>I'm back with a new series of Sliced Bread and I'm kicking off with a topic many of you have suggested - vapes. They've become controversial largely because of the rise in single-use, or disposable, vapes. Nearly eight million are sold in the UK each week, a figure that's doubled in the past year. And according to the organisation Material Focus, which campaigns to increase recyling rates, five million of those are thrown away. Listener John has spotted them lying around on the pavement and is worried about their effect on the environment.</p><p>I'm joined by Scott Butler from Material Focus who takes apart a disposable vape and shows me just what's inside and explains why they're harmful to the planet and what can be done to improve recycling.</p><p>I'm also investigating the reason vapes were introduced in the first place over a decade ago - as a smoking cessation aid. Listener Sam wants to know if they really do help you stop smoking or whether the convenience of disposable vapes means they just prolong or even worsen the addiction? </p><p>I speak to Professor Anne McNeill, co-author of a landmark review into the health impact of vapes and their effectiveness when it comes to helping people stop smoking compared to previous treatments like nicotine patches or gum. </p><p>Presenter: Greg Foot Producer: Simon Hoban</p>

Mosquito Repellents
Jul 13, 202328 min<p>If you are heading somewhere tropical this summer, or just want to protect yourself from bites in your own back garden, then which mosquito repellents can you trust?</p><p>Greg Foot gets up close and personal with a box full of hungry mosquitoes to find out.</p><p>Is it all about DEET or are there alternatives which are just as effective? What about citronella? And how well do bracelets, patches and candles perform? </p><p>And if you do get bitten, what is the best treatment for a mosquito bite?</p><p>Greg assesses the scientific evidence with Professor James Logan from the London School of Hygiene and Tropical Medicine and Dr Jane Wilcock, an indepedent researcher and GP. </p><p>If you’ve seen an ad, trend or fad relating to another consumer product and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Jon Douglas</p>

Barefoot Shoes
Jul 6, 202332 min<p>This is one of your most-requested topics and as a keen runner myself I couldn’t wait to get into it. Barefoot shoes claim to encourage you to run in a more ‘natural’ way, landing on your mid or forefoot rather than on your heel. Some brands say they’ll increase your speed and reduce the likelihood of injury. But will they? </p><p>Listener Sam runs marathons and wants to know if the science backs up the marketing hype. He also wonders whether the wider toebox in barefoot shoes really does allow for our toes to be separated out in a more natural way.</p><p>It’s not just runners who got in touch either; Jon is a dog walker and is interested in wearing barefoot shoes on a more casual basis. Is there any benefit to that? </p><p>And what about children? Listener Zoe already wears barefoot shoes herself but wants to know if they might be good for her son, too. In this episode I speak to experts to weigh up the evidence. Are barefoot shoes the best thing since sliced bread? Or just marketing BS?</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>

Dog Poo Bags
Jun 29, 202328 min<p>Owners clearing up after the UK's 11 million estimated pet dogs have a bewildering array of bags from which to choose. </p><p>Some are labelled 'degradable', others are called 'biodegradable', 'compostable and biodegradable' or 'recycled.' </p><p>So which ones are best for the environment? And what is the most environmentally friendly way of disposing of our dogs' doo?</p><p>Greg Foot is on the case on behalf of listeners including Nicola Jones and Craig Hart who are perplexed by the claims being made on dog poo bags. </p><p>If you’ve seen an ad, trend or fad relating to another consumer product and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Jon Douglas</p>

Cycle Helmets
Jun 22, 202331 min<p>Which cycle helmets give you the best protection?</p><p>I’m a big fan of cycling and so when listener Migue got in touch wanting to know what cycle helmet he should buy next, I was really keen to investigate.</p><p>Migue wanted to know what factors make a cycle helmet the most effective when it comes to protecting your head: the shape, the material, the fit? He’s seen all sorts of neat tech, including collapsible helmets and ones that fit around your neck and act like airbags! To find out more I speak to an expert at one of the world’s leading helmet testing labs in Virginia, USA.</p><p>And in researching this episode I also discovered there is a hotly-contested debate about whether cycle helmets should be the focus at all when it comes to safety. Some - including the organisation Cycling UK and the charity Sustrans - argue that introducing tougher rules around helmets would mean far more lives lost through physical inactivity than would be saved in protecting from collisions, which are rare. That’s a view shared by Dr Ian Walker from Swansea University, who also features in this episode.</p><p>Once again this series we’re testing and investigating your suggested wonder-products, so if you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot</p><p>PRODUCER: Simon Hoban “</p>

UV Sterilisers
Jun 15, 202328 min<p>During the pandemic, as people sought to protect themselves from Corona Virus, more and more products entered the market claiming to use Ultra Violet light to clean your belongings. These vary from UV wands and lamps, to phone boxes and UV baby bottle sterilisers. You may have seen them advertised online, claiming to kill 99% of viruses and bacteria. But do they deliver, and are they worth it, compared to more traditional methods of cleaning like alcohol wipes, or soap and water... That's what listeners Chris and Ben wanted to know.</p><p>I'll be finding out by speaking to an expert in radiation safety Professor John O'Hagan at Loughborough University and Matt Knight, Product Testing Expert at the consumer group Which?</p><p>Once again this series we’re testing and investigating your suggested wonder-products, so if you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot</p><p>PRODUCER: Jay Unger</p>

Outdoor Clothing
Jun 8, 202329 min<p>If you’ve ever made the mistake of going for a hike wearing just jeans and a t-shirt you’ll know it can be a pretty sweaty, uncomfortable experience. But it doesn’t have to be that way! There are myriad products promising to keep you dry, warm and protected from whatever the weather can throw at you. </p><p>Listener Julie is keen to know more about that after she went on an adventure holiday without the right kit, leaving her cold and miserable.</p><p>She’s heard about fabrics that promise to ‘wick away’ the sweat and others that keep you warm in cold weather and cool when it’s hot. And what about the jackets that claim to stop rain getting in yet still be breathable enough to let vapour and sweat out. How does that work?!</p><p>I’ll be finding out by speaking to an expert in textile technology and the Gear Editor from the UK’s best-selling walking magazine.</p><p>Once again this series we’re testing and investigating your suggested wonder-products, so if you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>

Reusable Nappies
Jun 1, 202329 min<p>According to recycling charity Wrap, an estimated three billion nappies are thrown away every year in the UK. Concerns over plastic waste and a want to save money have been driving a rise in the popularity of reusable nappies but, as listener Amy asks, are they really better for the planet, and your pocket? </p><p>Me and the team speak to Wendy Richards, also known as The Nappy Lady. She runs one of the biggest nappy advice and sales websites specialising in reusables. Crunching the numbers with her we look at the complete financial costs of both reusable and disposable nappies, even taking into consideration the extra washing costs needed to clean reusables. </p><p>But what about the environmental impacts of reusable nappies. Are they really better than disposables when you factor in the energy and water used to clean them? That's what we ask Professor Rob Holdway from Brunel University and Giraffe Innovation. Giraffe Innovation recently completed a thorough study - commissioned by DEFRA, the government’s Department for Environment, Food and Rural Affairs - looking at exactly this.</p><p>Once again this series we’re testing and investigating your suggested wonder-products, so if you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p>

Hay Fever Treatments
May 25, 202334 min<p>What works to help with the symptoms of hay fever?</p><p>The better weather’s here but for the millions who have hay fever that just means a runny nose and itchy, streaming eyes. And for some people it’s seriously debilitating – listener Richard got in touch because his wife can’t go out and play with the kids in the spring and summer months.</p><p> In this episode I’m investigating the treatments that claim to help. I speak to an expert from Allergy UK to find out what works and whether - as listener Lisa wonders - the generic or own-brand versions work as well as the more expensive branded ones. And could a hay fever injection be the one-shot solution Richard’s wife is looking for?</p><p>Also, you might have heard about the gut microbiome…but did you know there’s a nasal microbiome too?! I’m finding out about some new research which shows probiotics could play a role in treating hay fever.</p><p>This series we’re testing and investigating your suggested wonder-products, so if you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>

Low and No Alcohol Beer
May 18, 202326 min<p>Sales of alcohol-free beer in the UK have more than tripled in the past five years, and you'll find more types of no and low-alcohol beer on sale in your local supermarket. </p><p>But what does 'alcohol-free' really mean? And are these drinks always better for your health? </p><p>Various listeners got in touch with us about this one, so we enlisted the help of two experts to answer their questions. </p><p>Laura Willoughby knows a lot about no/low alcohol beer as co-founder of Club Soda which says it exists "to help people drink more mindfully and live well”. </p><p>Kerry Torrens is a registered nutritionist who has been working in the food and drink sector for two decades. </p><p>Once again this series we’re testing and investigating your suggested wonder-products, so f you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Jon Douglas</p>

Snoring Products
May 11, 202326 min<p>Research suggests four in 10 of us do it and it can even get so bad it’s been blamed for the breakdown of relationships. Snoring can be a living nightmare for you and your partner. But what if there was something that works to give you – and the people around you – a more peaceful night’s sleep?</p><p>Listener Neville got in touch with a recording taken by his wife of him snoring – and it’s pretty loud! He’s seen various solutions from throat sprays to nasal strips and even a chinstrap which literally keeps your mouth shut while you sleep. But do any of them actually work? Are they the best thing since Sliced Bread – or marketing BS?</p><p>I speak to experts to find out including an Ear, Nose and Throat surgeon and a scientist who’s looked into the extreme end of snoring. </p><p>Once again this series we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>

Toast - Series 1: Sinclair C5
May 4, 202325 min<p>While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of wonder products and businesses which had promised so much to consumers.</p><p>You can contact us at <a href="mailto:toast@bbc.co.uk">toast@bbc.co.uk</a></p><p>In each episode, the presenter and BBC business journalist, Sean Farrington, examines one big idea which ended up toast, examining the reasons behind the failure and discovering what can we learn from its story today.</p><p>Sean unpicks all the early optimism, hype and ambition, speaking to expert commentators to discover how they view things now and what, if anything, could have been done differently.</p><p>Sean is assisted by the self-made millionaire and serial entrepreneur, Sam White, as together they try to work out what went wrong.</p><p>This week, Sean and Sam look into the Sinclair C5 - an electric vehicle from the 1980s which promised to revolutionize personal transport. </p><p>They get a first-hand account of what happened from the former Managing Director of Sinclair Vehicles Ltd, Barrie Wills, and hear how the Isle of Cumbrae became a hotbed for the Sinclair C5....until the little vehicles started breaking down all over the island. </p><p>They also speak to Grant Sinclair - nephew of the C5's inventor, Sir Clive Sinclair - and hear how he has devised a new and very different take on the C5 which he plans to launch soon. </p><p>Presenter: Sean Farrington Producer: Jon Douglas</p><p>Toast is a spin-off from Sliced Bread, the series in which Greg Foot investigates the latest so-called wonder products to find out whether they really are the best thing since sliced bread.</p><p>Sliced Bread returns for a new batch of investigations in May. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.</p>

Toast - Series 1: Friends Reunited
Apr 27, 202325 min<p>While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of wonder products and businesses which had promised so much to consumers.</p><p>You can contact us at <a href="mailto:toast@bbc.co.uk">toast@bbc.co.uk</a></p><p>In each episode, the presenter and BBC business journalist, Sean Farrington, examines one big idea which ended up toast, examining the reasons behind the failure and discovering what can we learn from its story today.</p><p>Sean unpicks all the early optimism, hype and ambition, speaking to expert commentators to discover how they view things now and what, if anything, could have been done differently.</p><p>Sean is assisted by the self-made millionaire and serial entrepreneur, Sam White, as together they try to work out what went wrong.</p><p>This week, Sean and Sam look into a hugely successful website from a time when most people in the UK were slowly getting used to the internet. </p><p>Friends Reunited provided a unique way for users to reconnect with old school friends.</p><p>It made a fortune for its founders but was closed for good in 2016. Could it still have been successful today? </p><p>Toast is a spin-off from Sliced Bread, the series in which Greg Foot investigates the latest so-called wonder products to find out whether they really are the best thing since sliced bread.</p><p>Sliced Bread returns for a new batch of investigations in May. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.</p><p>Toast is a BBC Audio North production for BBC Radio 4.</p><p>The producers are Jay Unger and Jon Douglas.</p>

Toast - Series 1: Blockbuster
Apr 20, 202325 min<p>While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of wonder products and businesses which had promised so much to consumers.</p><p>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?</p><p>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?</p><p>Sean unpicks all the early optimism, hype and ambition. He speaks to expert commentators and to people involved with doomed wonder products to discover how they view things now and what, if anything, could have been done differently.</p><p>Along the way he discovers charming and surprising stories from people who took to these products but lived to regret it and, with the help of self-made millionaire and serial entrepreneur Sam White, tries to work out where they went wrong.</p><p>This week, Sean and Sam examine the game and movie rental chain, Blockbuster. </p><p>Its first store opened in 1985 in Dallas, Texas. At its peak in 2004, it had around 9,000 stores globally, was earning nearly $5.9 billion in revenue and employed over 84,000 people worldwide.</p><p>How did it lose its way? Spoiler alert - it wasn't just down to the rise of streaming services like Netflix. </p><p>Toast is a spin-off from Sliced Bread, the series in which Greg Foot investigates the latest so-called wonder products to find out whether they really are the best thing since sliced bread.</p><p>Sliced Bread returns for a new batch of investigations in May. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.</p><p>Toast is a BBC Audio North production for BBC Radio 4.</p>

Toast - Series 1: Olestra
Apr 13, 202325 min<p>While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of wonder products and businesses 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 speaks to expert commentators and to people involved with doomed wonder products to discover how they view things now and what, if anything, could have been done differently. </p><p>Along the way he discovers charming and surprising stories from people who took to these products but lived to regret it and, with the help of self-made millionaire and serial entrepreneur Sam White, tries to work out where they went wrong. This week, Sean and Sam look into a fat substitute called Olestra which promised to make savoury snacks healthier. </p><p>With none of the fat and far fewer calories, Olestra sounded like a dieter's dream..... but it didn't turn out that way. </p><p>Toast is a spin-off from Sliced Bread, the series in which Greg Foot investigates the latest so-called wonder products to find out whether they really are the best thing since sliced bread. Sliced Bread returns for a new batch of investigations in May. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds. Toast is a BBC Audio North production for BBC Radio 4.</p>

Toast - Series 1: Google Glass
Apr 6, 202326 min<p>From the team behind the hit series, Sliced Bread. </p><p>Sean Farrington investigates wonder products and businesses which promised so much to consumers.... but ultimately ended up toast. </p><p>Sean is joined by the self-made millionaire and serial entrepreneur, Sam White, to conclude what went wrong. Together they look at why a product or business failed, and what we can learn from their stories today. </p><p>In this episode, Sean talks about wearable tech and Google Glass. </p><p>These futuristic looking spectacles, with a heads-up display which showed text messages and street directions and allowed users to record video footage of what was happening around them, were named in Time Magazine as one of the best inventions of 2012. </p><p>There was plenty of hype. Google even demonstrated them by live-streaming a sky dive using Google Glass.</p><p>But by 2015, just two years after their release, Google announced that Google Glass Explorer, the consumer version of the glasses, was going to be shelved, and the version used by businesses has since been ditched too. </p><p>Sean and Sam speak to the BBC's former technology correspondent, Rory Cellan Jones, and the 'godfather' of wearable technology, Professor Sandy Pentland from the Massachusetts Institute of Technology), to discover how Google Glass went from being the best thing since sliced bread, to toast.</p><p>Presenter: Sean Farrington Producer: Jay Unger</p>

Toast - Series 1: Trailer
Apr 3, 20232 min<p>Greg Foot introduces a new series from the team that brought you Sliced Bread.</p><p>In Toast, Sean Farrington examines the wonder products and businesses that promised so much at launch but ultimately crashed and burned. With the help of industry experts, he asks what went wrong and what - if anything - they could have done differently.</p><p>Toast is available in the Sliced Bread feed on BBC Sounds.</p>

Sourdough
Mar 31, 202325 min<p>Is sourdough the best thing since Sliced Bread?</p><p>It’s the last episode in the current series so I thought it was about time I investigated this! </p><p>Listener Janet got in touch wanting to know whether sourdough really does live up to the hype. Is it better for our digestive health than other breads? Is it made with fewer additives? And do the cheaper sourdough loaves we can buy in the supermarket really cut it - or are they just ‘sourfaux’?</p><p>To find out, I went to a baking school to make a sourdough loaf from scratch, learning about the process and ingredients that go to make the sort of sourdough you’d find at an artisan or traditional bakers - and might cost over five pounds.</p><p>And I speak to one of the world’s leading nutritional experts on bread to find out which types we should eat for our health.</p><p>This series, we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>

Mascara
Mar 23, 202326 min<p>Mascara is a crucial element of many a make-up bag - but can mascaras really deliver on their promises of longer, fuller, or curlier lashes? </p><p>Listener Kath got in touch to ask exactly that. She also wants to know if you pay more for mascara, do you get better results? How should we remove it - and what about waterproof products that are tough to take off? Are we potentially damaging our lashes? </p><p>Greg Foot sets his sights on investigating by recruiting some regular mascara wearers to try out differently priced products, as well as speaking to a consultant dermatologist and cosmetic chemist to find out. </p><p>This series, we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Kate Holdsworth</p>

Toothpaste
Mar 16, 202326 min<p>Do toothpastes promising to repair enamel and help with sensitive teeth really work?</p><p>We've all been there - you go down the supermarket aisle to grab toothpaste and suddenly you’re faced with an ocean of the stuff, all promising to do different things. Buzz-phrases like ‘protect’ and ‘repair’ all vie for your attention. But just what are the ingredients in all these different toothpastes? And do they live up to the marketing hype?</p><p>In this episode we hear from three listeners keen to find out: Bernadette has sensitive teeth, Deirdre is concerned about her enamel and Melvyn wants to protect his gums. Can presenter Greg Foot find a toothpaste that will work for them and leave them all smiles?</p><p>This series we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>

Herbal Sleep Aids
Mar 9, 202327 min<p>Sleep is never more important than when you aren’t getting any. And there’s a large range of night time teas, herbal tablets and relaxing oils and sprays that promise to help you get some. But can they really deliver?</p><p>Listener Corrine got in touch after struggling with her sleep post menopause, wanting to know if there was any evidence to back up the claims of various natural sleep aids. Can they give her the restful night’s sleep she craves – or is it just a waste of money? She sets Greg Foot the job of finding out, by speaking to an expert sleep physiologist, as well as a professor in clinical pharmacology, therapeutics and toxicology. </p><p>This series we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Kate Holdsworth</p>

Mattresses
Mar 2, 202327 min<p>We spend a lot of time on them so it’s important to get the right mattress. But buying one can be confusing. Some use springs while others are made out of foam - or there’s a combination of both. Then there’s memory foam, with brands like Tempur claiming to make their mattresses out of ‘proprietary’ material. And can a good mattress help to alleviate back pain?</p><p>These are the questions keeping listener Stephen up at night and he tasks presenter Greg Foot with finding out more. Greg speaks to experts in the mattress industry and a sleep specialist, looking at the scientific evidence to test whether the claims made by mattress manufacturers live up to the marketing hype. </p><p>This series, we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>Presenter: Greg Foot Producer: Simon Hoban</p>

Conditioners and Heat Protection Products
Feb 23, 202327 min<p>After the Sliced Bread episode on shampoo, a number of listeners got in touch to request a follow-up episode on conditioners. So of course, we obliged. </p><p>Listener Katie wanted to know what they actually do to our hair, if they can deliver on promises for shinier, smoother, or stronger locks – and whether leave-in treatments could be more effective than conditioners you wash off in the shower? </p><p>Listener Franziska also got in touch, as she wondered if we could also have a look at heat protection products. She wanted to know what’s in them, can they offer our hair any protection while styling, and is there a difference between the effectiveness of sprays or creams? </p><p>Greg Foot rinses out the claims on both, speaking once again to the experts from Shampoo – also available on BBC Sounds. </p><p>This series, we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>Presenter: Greg Foot Producer: Kate Holdsworth</p>

Bottled Water
Feb 16, 202327 min<p>Listener Isla, 11, wants to know if bottled water from the UK's biggest selling brands such as Evian and Buxton is cleaner, healthier, cheaper and greener than the stuff that comes from the tap.</p><p>Greg Foot drills down into the subject, investigating the claims made by manufacturers of bottled water. Does it make any difference if water has spent years underground being "filtered by rocks" before being bottled? Are there more minerals in bottled water than in tap? And even though companies are making more of their bottles from recycled plastic, what’s the environmental impact?</p><p>Greg speaks to experts including a lecturer in water chemistry, an environmental NGO and a water sommelier (yes, they’re a thing!) who explains why some bottled water can cost more than a hundred pounds.</p><p>This series, we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad and wonder if there’s any evidence to back up a claim, drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or you can send us a voice note to our WhatsApp number: 07543 306807.</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>