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.
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Sliced Bread - Series 4: Sunglasses
14 jul 202225 min<p>Do more expensive pairs better protect your eyes? Whether you’re hoping to catch some rays here in the UK or heading abroad for summer sun, you’ll want to think about protecting your eyes from the harmful UV in those rays. But how much do you need to spend on sunglasses to keep you safe?</p><p>Listener Wayne got in touch wanting to know the answer. He also wondered whether darker tints better protect his eyes, and asked what the term ‘polarised’ means, and whether he should ensure any new pair are exactly that?</p><p>Greg Foot sets out to investigate, testing sunglasses ranging in price from £2.50 to over a hundred pounds - do they deliver on their UV protection? The results are surprising... </p><p>This series, we’re testing 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 new WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>
Sliced Bread - Series 4: Manuka Honey
30 jun 202223 min<p>A small jar of this sticky stuff can cost anything from around ten pounds to over a thousand. Some brands claim it can help with sore throats, skin problems, hay-fever and poor sleep. Other producers curiously make no health claims at all about their manuka products. So what’s the buzz about and is there any science behind it? </p><p>Listener and beekeeper David got to get in touch to ask whether manuka honey can boost the immune system, and if it has any benefits over and above the ordinary honey from his bees produce. </p><p>Greg Foot gets stuck in to find out, talking with two microbiologists to learn why manuka honey is different and if there’s any truth to some of those sweet sounding claims. </p><p>This series, we’re testing 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 new WhatsApp number: 07543 306807</p><p>Presenter: Greg Foot Producers: Julian Paszkiewicz & Kate Holdsworth Researcher: Darcy Tapley</p>
Sliced Bread - Series 4: Air Fryers
23 jun 202230 min<p>It seems like everyone’s talking about air fryers. They were recently dubbed the product that defined 2021, with sales up by 400%. But how do they fry with air?</p><p>Listener Sally in Harrogate has another question too: at a time when the cost of living is rocketing will cooking with an air fryer save her money? </p><p>And, because they use little to no oil, is cooking food in an air fryer also “healthier”? </p><p>Greg Foot investigates, speaking to a food scientist at Imperial College London and the BBC’s Good Food Magazine, to find out whether the claims being made around air fryers live up to the hype or are just marketing BS.</p><p>This series, we’re testing 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 new WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>
Sliced Bread - Series 4: Air Purifiers
16 jun 202225 min<p>Air purifiers have become one of the most popular home gadgets in recent years and you can spend hundreds of pounds on the top-end models. They promise to remove harmful pollutants in the air, reduce the symptoms of allergies and help you breathe more easily in a more healthy environment. But what's the evidence around how effective they are? </p><p>Listener Laura, a respiratory doctor, got in touch wanting to know whether they work and even if they could help some of her patients in their daily lives. </p><p>Greg Foot investigates the science behind the product, speaking to experts to find out just how many pollutants are being pulled from thin air, the effective range of air purifiers and whether there are any downsides to how they work.</p><p>This series, we’re testing 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 new WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCERS: Kate Holdsworth and Julian Paszkiewicz</p>
Sliced Bread - Series 3: Carbon Negative and Carbon Offsetting
9 jun 202225 min<p>Brands are promising to plant a tree for each can of beer, tshirt, or pair of trainers you buy, offsetting their carbon emissions so they can put an attractive ‘carbon negative’ sticker on a product to show green they - and you - truly are. But how effective is a new forest at offsetting a company’s emissions, what does ‘carbon negative’ really mean, and how do they go about proving they’ve achieved it? </p><p>Trees are just one type of carbon offset. Another, albeit promising but expensive, option is Direct Air Capture. Could that be the future of long term carbon offsetting? Greg Foot finds out. </p><p>This series, we’re testing 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 new WhatsApp number: 07543 306807</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>
Sliced Bread - Series 3: Meal Replacement Drinks
2 jun 202225 min<p>Huel and Soylent are two of the best known names in ‘complete nutrition’ drinks. More of us are trying them and you can now get pre-made bottles of these concoctions in the food aisle in supermarkets. Firms sell them as an instant alternative to breakfast, lunch and dinner too. </p><p>But how ‘nutritionally complete’ are these liquid lunches? </p><p>Listener Tom admits snacking on one in the middle of the afternoon but has questions. Does the fact they start as an ultra processed powder affect how healthy they are? Is it possible to live on them and nothing else? </p><p>Greg Foot investigates. He talks to a registered dietician, a researcher on a new trial into these products, and Huel's co-founder and Head of Sustainable Nutrition, James Collier. </p><p>In this series, we’re testing your suggested wonder-products. If you’ve seen an ad, trend or fad and wonder if there's any evidence to back up the makers' claims drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a></p><p>Presenter: Greg Foot Producer: Julian Paszkiewicz</p>
Sliced Bread - Series 3: Electric Toothbrushes (& Water Flossers)
26 may 202225 min<p>Take a look down the aisle of any high street chemist and the array of electric toothbrushes on offer is as dazzling as the teeth they promise to give you. You can pay upto £500 for the latest versions whiose myriad features include interactive apps that give you feedback on your brushing technique.</p><p>The market is dominated by two big brands, both promising a ‘professional’ clean: Oral B, whose iO brush has an oscillating action and Philips’ Sonicare, which uses tens of thousands of vibrations every minute to clean your teeth.</p><p>After having to pay a lot more for private treatment because she couldn’t find an NHS dentist in her area, listener Holly got in touch to ask whether getting an electric brush might save her trips to the dentist in future. And wouldcould a more expensive brush really clean her teeth better than a cheaper electric one? Or even the trusty traditional (and far cheaper) manual one she currently uses?! </p><p>Greg takes to the dentists chair to find out, testing both the Oral B and Philips brands as well as one of the latest trends – water flossing, which claim even better results than regular flossing with tape or interdental brushes. Is it the best thing since sliced bread? Or marketing BS? </p><p>Greg guests this episode include a dental expert who's been studying electric brushes since their inception and the consumer group Which? who ranked electric toothbrushes in a recent consumer test of their own.</p><p>This series, we’re testing your suggested wonder-products. Seen an ad, trend or fad and wonder if there's any evidence to back up the claim? Tell us! Drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> . </p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>
Sliced Bread - Series 3: Blue Light Filtering Glasses
19 may 202224 min<p>According to some businesses, the laptop, phone and TV screens we use every day are causing us big problems. </p><p>They claim these devices emit concentrations of "harmful blue light" which leaves us with tired eyes and poor sleep. One firm goes even further by suggesting this may contribute to a worrying long term condition, macular degeneration which leaves you with a permanent black hole in the centre of your vision.</p><p>Their solution? A pair of trendy looking spectacles which claim to filter out this blue light. </p><p>Listener, Sophie spends roughly 12 hours a day at a screen of some sort. She bought a pair but isn't sure if they work. So she's asked Greg to look into them and find out. </p><p>We get answers from two leading lights in the science of our eyes. Professor John O'Hagan has been a public health scientist for 46 years and is Visiting Professor in Laser and Optical Radiation Safety at Loughborough University. </p><p>Greg also meets sleep expert Russell Foster, professor of Circadian Neuroscience at the University of Oxford who's been researching body clocks for 38 years. </p><p>We put the evidence directly to Dhruvin Patel. He's the boss of one of the largest blue light filtering brands, Ocushield which turned over £2m last year.</p><p>How does he respond? And will Sophie keep using her trendy specs? </p><p>This series, we’re testing your suggested wonder-products. Seen an ad, trend or fad and wonder if there's any evidence to back up the claim? Tell us! Drop us an line to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> . </p><p>Presenter: Greg Foot Producer: Julian Paszkiewicz</p>
Sliced Bread - Series 3: Personalised Vitamin Plans
12 may 202225 min<p>The vitamins market is growing fast, with many companies now offering bespoke vitamin plans that claim to produce the perfect personalised prescription just for you.</p><p>Our listener Gareth wants to know if this could be a quick fix for his low energy and poor diet so Greg is going to find out. He’s got his sights on the popular companies suggesting personalised plans based on a simple online questionnaire that builds up a picture of your vitamin deficiencies via questions about your exercise, stress levels, diet and more.</p><p>But these personalise plans comes at a premium - some go for close to £25 per month. Greg tests the questionnaires, speaks with nutritional experts, and sees whether Gareth thinks personalised vitamin plans are the best thing since sliced bread, or marketing BS.</p><p>This season we’re testing YOUR suggested wonder-products. If you’ve seen an advert, trend or fad and want to know what the evidence says drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or drop Greg a message direct on his social media where he’s @gregfoot</p><p>PRESENTER: Greg Foot PRODUCER: Simon Hoban</p>
Sliced Bread - Series 3: Running Shoes
5 may 202225 min<p>They cost anything from less than £20 to more than £250. So how do you pick the right pair? And will paying more make you run faster?</p><p>With the ‘Couch to 5K’ app breezing past 5 million downloads, and marathon season well underway, two listeners ask Greg: What will they get for the extra money? A shoe more suited to their running style? More cushioning and fewer injuries? And will a top of the range pair with a carbon plate in the sole make them faster? </p><p>Greg Foot gets the answers from biomechanist, Dr Hannah Rice and sports technologist Professor Mike Caine. Plus, running writer, journalist and world record holder [for the fastest marathon in a full body animal costume (female)], Kate Carter. </p><p>This season we’re testing YOUR suggested wonder-products. If you’ve seen an advert, trend or fad and want to know what the evidence says drop us an email to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or drop Greg a message direct on his social media where he’s @gregfoot</p><p>Presenter: Greg Foot</p><p>Producer: Julian Paszkiewicz</p>
Sliced Bread - Series 3: Air Source Heat Pumps
28 abr 202225 min<p>One of your most requested ‘wonder-products’ so far. Heat pumps are promising to not only make our houses greener but to also cut our energy bills. But will they? The Government says every home could have one and have reintroduced grants to help buy them. However Nick wants to know if an air source heat pump would be suitable for the 1930s house he’s about to move into with his family. Given the higher cost of the unit and the extra insulation he needs, will he actually be better off with a new combi boiler instead? Greg speaks to experts, does a survey on his own home and gets Nick answers so he can decide if a heat pump, for him, would be the best thing since sliced bread. Do you have a suggestion of a ‘wonder-product’ making a bold claim that Greg can investigate next? </p><p>Send us your suggestions to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or send it to Greg direct on twitter or instagram where he’s @gregfoot</p><p>PRESENTER: GREG FOOT PRODUCER: SIMON HOBAN</p>
Sliced Bread - Series 3: Wagyu Beef
22 abr 202225 min<p>For many beef connoisseurs, a wagyu steak is the tenderest meat money can buy. They say it literally melts in the mouth. But Pete wants to know, if a Wagyu steak can set you back £100, how can supermarkets sell Wagyu burgers for around £3.50 a pair? How much of what makes wagyu beef so prized trickles down into a burger?</p><p>Greg speaks to meat scientist, Martin Anderson, visits a Wagyu farm in Yorkshire, and sets up a blind taste test. All to find out if Wagyu burgers are the best thing between sliced bread. </p><p>Do you have a suggestion of a ‘wonder-product’ making a bold claim that Greg can investigate next? </p><p>Send us your suggestions to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or send it to Greg direct on Twitter or Instagram where he’s @gregfoot PRESENTER: GREG FOOT PRODUCERS: JULIAN PASZKIEWICZ & KEVIN CORE</p>
Sliced Bread - Series 3: Sustainable Jeans
14 abr 202225 min<p>“Make better. Buy better. Wear it longer.” Lots of fashion brands are including claims like this in their adverts and one item of clothing that’s really getting the stamp of supposed “sustainability” is jeans.</p><p>Maddie has asked Greg to look into what “sustainability” actually means when it comes to denim. Is it a term that marks genuine eco-impact, or is it more marketing BS? And, as adverts claim, do “sustainable” jeans last longer? </p><p>Greg speaks to an organisation that rates clothing brands’ sustainability credentials and visits Manchester Metropolitan University to hear the results of their ‘rub test’. Do you have a suggestion of a ‘wonder-product’ making a bold claim that Greg can investigate next? </p><p>Send us your suggestions to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or send it to Greg direct on Twitter and Instagram where he’s @gregfoot</p><p>PRESENTER: GREG FOOT PRODUCER: JULIAN PASZKIEWICZ</p>
Sliced Bread - Series 3: Electric Cars
7 abr 202230 min<p>Read Greg's blog for more info on the considerations and calculations made in this episode:</p><p><a href="https://www.gregfoot.com/post/should-you-switch-to-an-electric-car">https://www.gregfoot.com/post/should-you-switch-to-an-electric-car</a></p><p>Electric Vehicles: Should you switch? In the first of this new series Greg runs Julian’s suggested wonder-product through the evidence mill and asks whether electric vehicles (EVs) really are the best thing since sliced bread? Julian has heard that switching his old petrol-guzzling banger for a shiny new EV will make him greener? But will it? Electric cars are said to be ‘cleaner’ and ‘cheaper’ to run, but with a higher purchase price than their petrol equivalent - and a greater environmental footprint of manufacture - how many miles would Julian need to drive before his fuel savings off-set these initial costs - both financially and environmentally? Greg tests one of the most popular cars in the UK and hears from experts including Mike Berners-Lee & Vicky Parrot to conclude whether electric vehicles are worth the hype, and your money. And he wants YOUR suggestions for what to investigate next! </p><p>Is there something you keep seeing on TV - or hearing about on a podcast? Have you spotted something trending on Instagram or TikTok and you want to know if it delivers? </p><p>Send us your suggestions to <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> or send it to Greg direct on twitter or instagram where he’s @gregfoot PRESENTER: GREG FOOT PRODUCER: JULIAN PASZKIEWICZ</p>
Sliced Bread - Series 2: Noise Cancelling Headphones
6 may 202021 min<p>Whether it’s cutting out the background chatter to hear the radio, or drowning out the snoring coming from the room next door, the promise of noise cancelling headphones is enticing. But do they live up to the marketing hype? </p><p>Are they The Best Thing Since Sliced Bread, or BS?</p><p>Greg Foot is joined by BBC 6 Music DJ & Host Mary Anne Hobbs, who lends her professional ear to a pair of noise cancelling headphones. While acoustic engineer Professor Trevor Cox unpicks the science fact from the science fiction.</p><p>Presenter: Greg Foot Producer: Beth Eastwood</p>
Sliced Bread - Series 2: Teeth Whitening
29 abr 202023 min<p>Teeth whitening toothpastes, strips and gizmos are more popular than ever. But what is the evidence that any of them actually work? And what about the HiSmile Teeth Whitening Kit that's been doing the rounds on social media?</p><p>Are these products The Best Thing Since Sliced Bread or marketing BS?</p><p>Greg Foot talks to fashion commentator and broadcaster, Grace Woodward about her experience with these products while Professor Martin Ashley, Consultant in Restorative Dentistry at the University Dental Hospital of Manchester, is on hand to separate the science fact from the science fiction. </p><p>Presenter: Greg Foot Producer: Beth Eastwood</p>
Sliced Bread - Series 2: Sunscreen
22 abr 202024 min<p>We all know that sunscreen helps to protect our skin from the sun’s burning rays, but are you sure you’re using the right one? Do you struggle to untangle the UVAs from the UVBs, and the SPFs from the star-ratings?</p><p>Greg Foot talks to Antonia Mariconda, beauty writer and founder of the Safety in Beauty Campaign, who knows just how baffled consumers are.</p><p>On hand to decode the sunscreen labelling is Dermatologist, Dr Andrew Birnie, from East Kent Hospital University NHS Foundation Trust. Common claims, such as ‘waterproof’ and ‘reef safe’ are also put through the evidence mill.</p><p>Producer: Beth Eastwood</p>
Sliced Bread - Series 2: CBD Products (Cannabidiol)
15 abr 202022 min<p>CBD, short for cannabidiol, is one of the big buzzwords in health and well being products. A naturally occurring molecule of the cannabis plant, it’s popping up in everything - aside from the CBD oil tinctures, you can now eat it, down it in drinks, vape it, lather it on your skin and soak in it. You can even buy sports leggings infused with it. Consumer interest in CBD-based products shows no sign of abating, with enthusiasts claiming a whole host of benefits from relieving anxiety, to easing pain and helping us sleep.</p><p>The theory behind how CBD might work seems promising - CBD shares similarities with endocannabinoids, produced naturally in the body, which help to regulate stress, sleep, metabolism, memory, inflammation, and immunity. Given the deluge of different CBD-based products, should we really believe the hype?</p><p>Greg Foot talks to beauty columnist Sali Hughes and Saoirse O’Sullivan, an expert in cannabinoid research, to find out if these products really are The Best Thing Since Sliced Bread. Produced by Beth Eastwood.</p>
Sliced Bread - Series 2: Caffeine Shampoo
8 abr 202029 min<p>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?</p><p>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.</p><p>Dermatologist Dr Paul Farrant, from Brighton and Sussex University Hospitals Trust, is on hand to put two products through the evidence mill, separating the facts from the fads to reveal whether caffeine hair products really are The Best Thing Since Sliced Bread. Produced by Beth Eastwood.</p>
Sliced Bread - Series 2: Goop Lab Special
24 ene 20201h 7m<p>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. </p><p>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 treatments Greg turns to Dr Nisith Sheth, dermatologist at St John’s Institute of Dermatology, Guy’s and St Thomas’ Hospitals. Professor Edzard Ernst, Emeritus Professor of Complementary Medicine at the University of Exeter, is our reviewer of the evidence for the effects of Reiki and other forms of energy healing. And gynaecologist and pain specialist, Dr Jen Gunter, author of The Vagina Bible, is our expert on what the Goop Lab says about how women can have better sex.</p>
Sliced Bread - Series 1: Sports Pain: Taping
27 feb 201923 min<p>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?</p>
Sliced Bread - Series 1: Sports Pain: Gels and Sprays
27 feb 201934 min<p>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.</p><p>Presenter: Greg Foot Producer: Marijke Peters Editor: Rami Tzabar Sound Editing: Giles Aspen</p>
Sliced Bread - Series 1: Health Drinks: Turmeric
20 feb 201920 min<p>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.</p><p>Presenter: Greg Foot Producer: Marijke Peters Studio Manager: Sue Maillot Editor: Rami Tzabar</p>
Sliced Bread - Series 1: Health Drinks: Kombucha
20 feb 201927 min<p>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.</p><p>Presenter: Greg Foot Producer: Marijke Peters</p>
Sliced Bread - Series 1: Winter Bugs: Vitamin C and Zinc
13 feb 201925 min<p>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.</p><p>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.</p><p>Presenter: Greg Foot Producer: Michelle Martin Researcher: Amelia West Studio Managers: Emma Harth, John Boland Editors: Deborah Cohen, Rami Tzabar</p><p>The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production.</p>
Sliced Bread - Series 1: Winter Bugs: Hand Sanitisers
13 feb 201932 min<p>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.</p><p>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.</p><p>Virologist Wendy Barclay from Imperial College London and microbiologist Lindsay Hall from the Quadram Institute in Norwich are both on hand to help separate the facts from the fads, to decide if these products really are The Best Thing Since Sliced Bread.</p><p>Presenter: Greg Foot Producer: Michelle Martin Researcher: Amelia West Studio Managers: Emma Harth, John Boland Editors: Deborah Cohen, Rami Tzabar</p><p>The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production.</p>
Sliced Bread - Series 1: Skincare: Activated Charcoal
6 feb 201920 min<p>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. </p><p>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 the science behind activated charcoal - could it act as a 'magnet' to draw out dirt and pollution from your pores as some products claim?</p><p>Presenter: Greg Foot Producer: Graihagh Jackson Studio Manager: John Boland Editor: Rami Tzabar</p><p>The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production</p>
Sliced Bread - Series 1: Skincare: Collagen
6 feb 201925 min<p>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. </p><p>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 really ‘boost’ and ‘support’ collagen production as some products claim?</p><p>Presenter: Greg Foot Producer: Graihagh Jackson Studio Manager: John Boland Editor: Rami Tzabar</p><p>The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production</p>
Sliced Bread - Series 1: Trailer
5 feb 20192 min<p>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.</p><p>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)</p>
