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The Proof with Simon Hill

The Proof with Simon Hill

By: Live better for longer
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The Proof Podcast is a space for science-based conversation. Together with his guests, Simon Hill, a qualified physiotherapist and nutritionist, explores the health and longevity benefits that come with mastering physical exercise, nutrition, mindfulness, recovery, sleep, and alignment. Facts, nuance and trustworthy recommendations minus the hyperbole. All the proof you need to live better for longer. Hygiene & Healthy Living Personal Development Personal Success
Episodes
  • Most 'Probiotic' Foods Aren't Actually Probiotic | Dr Maria Marco

    Most 'Probiotic' Foods Aren't Actually Probiotic | Dr Maria Marco
    Oct 29 2026
    The word gut health is on almost everything now, from yoghurt lids to supplement labels. So I asked food microbiologist Dr Maria Marco, Professor at UC Davis and President of the International Scientific Association for Probiotics and Prebiotics, what it actually means. She spent a year with a panel of clinicians, dieticians, and immunologists trying to define it, and the most striking finding was how much we still cannot measure. This is a conversation about the distance between the science and the marketing, and it includes some claims that will change how you read a label. What we cover The consensus definition of gut health, and why symptoms and pathology can point in opposite directions Whether commercial microbiome stool tests and diversity scores mean anything clinically Why sauerkraut sold as probiotic is, in Maria's words, "just a marketing thing" Whether the microbes in yoghurt survive digestion, colonise your gut, or simply pass through Why dead and pasteurised microbes may still be beneficial How to choose a probiotic that has actually been tested in people, and when to stop taking one Maria is unusually willing to say what we do not yet know, and in a field this commercially crowded, that honesty is worth a great deal. To connect with Dr Maria Marco, visit the Marco Lab at UC Davis, find her on LinkedIn, or follow her lab's work on Instagram at @eat.lac.project. If this episode was useful, please leave a rating and review on Apple Podcasts or Spotify. It genuinely helps more people find the show. Want to support the show? The best way to support the show is to use the products and services offered by our sponsors. To check them out and enjoy great savings, visit theproof.com/friends. You can also support the show by leaving a review on the Apple Podcast app and sharing your favourite episodes with friends and family. This episode is brought to you by: 38TERA 38TERA’s BDR is a clinically dosed gut health supplement for improved digestion, less bloating, better bowel movements and a healthier microbiome. Use code THEPROOF for a discount at checkout. 38Tera ships to the United States, Australia, and New Zealand. IM8 With 92 nutrients, including Vitamin B12, Iodine, Selenium and Vitamin D, in highly absorbable forms, IM8 Daily Essentials is the perfect all-in-one daily multi-vitamin to ensure you meet your daily micronutrient needs. IM8 is offering an exclusive 10% off your first order with a free welcome kit when you enter the promo code SIMON at checkout on im8health.com. IM8 ships to 27 countries including the U.S., Canada, the U.K., Australia, and many regions across Europe, Asia, and South America. LMNT Stay hydrated with LMNT. Get a free Sample Pack of LMNT’s most popular drink mix flavours with any purchase at DrinkLMNT.com/SIMON Find your favourite LMNT flavour, or share with a friend. And if you don’t like it? Full refund, no questions asked. LMNT ships to the U.S. and Canada, with sparkling flavors available only in the contiguous U.S. SwimClub SwimClub is a science-backed supplement designed to support male fertility, sperm health, and reproductive wellness. Head to swimclub.co to get 25% off your first order with code THEPROOF. Function Health Take charge of your health with advanced blood testing and personalised insights. Function Health offers a practical way to track key health markers such as cholesterol, blood sugar, and more. Learn more and join at functionhealth.com/simonhill for a $25 credit toward your membership. Only available to those living in the United States. Function Health ships to 48 U.S. states, excluding Rhode Island, Hawai‘i, and Puerto Rico. WHOOP Whoop, the most advanced fitness and health wearable available. Your personalised fitness and health coach to recover faster, sleep better, and train smarter. Claim your first month free on join.whoop.com/simon. Whoop ships to 56+ international markets, including the US, Canada, most of Europe, Australia, New Zealand, UAE, Singapore, and parts of Asia. Simon Hill, MSc, BSc (Hons) Creator of theproof.com Host of The Proof with Simon Hill Author of The Proof is in the Plants Subscribe & Connect: YouTube Apple Podcasts Spotify Instagram: @simonhill Twitter: @theproof Facebook: The Proof with Simon Hill Nourish your gut with my Plant-Based Ferments Guide and download my Two-Week Meal Plan.
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    1 hr and 2 mins
  • What Bone Density Scans Can't Tell You About Fracture Risk | A Masterclass on Bone Health

    What Bone Density Scans Can't Tell You About Fracture Risk | A Masterclass on Bone Health
    Oct 26 2026
    In this masterclass, I bring together six experts to untangle bone health, from fracture risk and DEXA scans to strength training, joint pain, and surgery. Dr Lora Giangregorio, Prof Belinda Beck, Dr Deborah Kado, Dr Howard Luks, Dr Lauren Colenso-Semple, and Dr Alyssa Olenick each add a different perspective. Bone density is only one part of the fracture story, and the advice around lifting heavy often runs ahead of the evidence. Together, we turn the confusion into a practical framework. What we cover: Why bone density is only one piece of fracture risk What DEXA cannot see, and why bone shape matters Whether you really need to lift heavy for your bones A bare minimum strength program for beginners When surgery helps, and why "bone on bone" is an unhelpful phrase How to build movement into everyday life The best program is the one you can sustain, and I hope this gives you the confidence to start. To connect with our guests, you can find Dr Lora Giangregorio on TikTok, X, and LinkedIn, or learn more through her University of Waterloo profile. Prof Belinda Beck can be found through The Bone Clinic, ONERO, her Griffith University profile, and Facebook. Dr Deborah Kado has a Stanford profile and is on LinkedIn. Dr Howard Luks writes on Substack and is on X and Instagram. Dr Lauren Colenso-Semple is on Instagram and at drlaurencs.com, and Dr Alyssa Olenick is on Instagram and YouTube, with her programs at doclyssfitness.com. If you enjoyed this episode, please rate and review The Proof on Apple Podcasts and share it with someone who would find it useful. Want to support the show? The best way to support the show is to use the products and services offered by our sponsors. To check them out and enjoy great savings, visit theproof.com/friends. You can also support the show by leaving a review on the Apple Podcast app and sharing your favourite episodes with friends and family. This episode is brought to you by: 38TERA 38TERA’s BDR is a clinically dosed gut health supplement for improved digestion, less bloating, better bowel movements and a healthier microbiome. Use code THEPROOF for a discount at checkout. 38Tera ships to the United States, Australia, and New Zealand. Function Health Take charge of your health with advanced blood testing and personalised insights. Function Health offers a practical way to track key health markers such as cholesterol, blood sugar, and more. Learn more and join at functionhealth.com/simonhill for a $25 credit toward your membership. Only available to those living in the United States. Function Health ships to 48 U.S. states, excluding Rhode Island, Hawai‘i, and Puerto Rico. ProLon ProLon’s 5-Day Fasting Mimicking Diet is a science-backed, plant-based program designed to support metabolic health while keeping your body in a fasting-like state. Get 15% off sitewide plus a $40 bonus gift at ProLonLife.com/THEPROOF. ProLon ships within the United States. Momentous My go-to supplement brand for protein and creatine is Momentous. Use code THEPROOF for up to 35% off your first order at livemomentous.com. Momentous ships to many countries worldwide depending on local import regulations. Upwork Post your job for free at Upwork.com and connect with top talent ready to help your business grow. Find the right talent to support your business and bring your projects to life. WHOOP Whoop, the most advanced fitness and health wearable available. Your personalised fitness and health coach to recover faster, sleep better, and train smarter. Claim your first month free on join.whoop.com/simon. Whoop ships to 56+ international markets, including the US, Canada, most of Europe, Australia, New Zealand, UAE, Singapore, and parts of Asia. Simon Hill, MSc, BSc (Hons) Creator of theproof.com Host of The Proof with Simon Hill Author of The Proof is in the Plants Subscribe & Connect: YouTube Apple Podcasts Spotify Instagram: @simonhill Twitter: @theproof Facebook: The Proof with Simon Hill Nourish your gut with my Plant-Based Ferments Guide and download my Two-Week Meal Plan.
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    1 hr and 8 mins
  • The Keto Study That Wasn't About Keto | Dr Nicola Guess

    The Keto Study That Wasn't About Keto | Dr Nicola Guess
    Oct 19 2026
    Practising registered dietitian and senior research fellow at the University of Oxford, Dr Nicola Guess, returns to the show to discuss a new study whose findings were interpreted in quite different ways the week it came out. Dr Samuel Klein’s group at Washington University assigned people with prediabetes to one of three diets, carefully controlled their weight loss, and found that the arm labelled ketogenic reduced liver fat by 67%. Nicola’s view is that the label, and the conclusion many drew from it, deserve a closer look. Ketone levels in that arm were lower than you would typically expect on a ketogenic diet, which suggests something other than ketosis may explain the result. Her reading is that protein intake, rather than carbohydrate restriction, could be the more important variable. With roughly one in three adults carrying excess fat in the liver, often without symptoms, understanding what actually drives that reduction matters for the advice people receive. What We Cover Why this trial should not have been called a ketogenic diet study How protein appears to lower liver fat even in the absence of weight loss The 23% saturated fat arm, and why ApoB fell anyway What likely changes once people move from weight loss into maintenance Whether liver fat causes insulin resistance or simply marks it Nicola's 35 grams of protein per meal target and how she builds a plate around it Where seed oils and fibre actually sit in the evidence This is a good example of why the label on a study matters as much as its headline number. If you have been told to cut carbohydrates to fix your liver, this conversation is worth your time. To connect with Nicola Guess, visit NicolaGuess.com or find her on Instagram and YouTube. If you enjoy the show, please leave a rating and review on Apple Podcasts. It helps new listeners find us. Want to support the show? The best way to support the show is to use the products and services offered by our sponsors. To check them out and enjoy great savings, visit theproof.com/friends. You can also support the show by leaving a review on the Apple Podcast app and sharing your favourite episodes with friends and family. This episode is brought to you by: 38TERA 38TERA’s BDR is a clinically dosed gut health supplement for improved digestion, less bloating, better bowel movements and a healthier microbiome. Use code THEPROOF for a discount at checkout. 38Tera ships to the United States, Australia, and New Zealand. IM8 With 92 nutrients, including Vitamin B12, Iodine, Selenium and Vitamin D, in highly absorbable forms, IM8 Daily Essentials is the perfect all-in-one daily multi-vitamin to ensure you meet your daily micronutrient needs. IM8 is offering an exclusive 10% off your first order with a free welcome kit when you enter the promo code SIMON at checkout on im8health.com. IM8 ships to 27 countries including the U.S., Canada, the U.K., Australia, and many regions across Europe, Asia, and South America. Eight Sleep Upgrade your sleep with the Pod 6 by Eight Sleep. Clinically validated to deliver up to 1 extra hour of quality sleep per night through temperature control and biometric tracking. Use code THEPROOF at eightsleep.com/theproof for up to $200 off. You get 30 days to try it at home and return it if you don't love it. Eight Sleep ships to the U.S. (excluding Alaska, Hawaii, and territories), Canada, Mexico, most of the EU, the U.K., Australia, the UAE, Saudi Arabia, and Switzerland. Momentous My go-to supplement brand for protein and creatine is Momentous. Use code THEPROOF for up to 35% off your first order at livemomentous.com. Momentous ships to many countries worldwide depending on local import regulations. Function Health Take charge of your health with advanced blood testing and personalised insights. Function Health offers a practical way to track key health markers such as cholesterol, blood sugar, and more. Learn more and join at functionhealth.com/simonhill for a $25 credit toward your membership. Only available to those living in the United States. Function Health ships to 48 U.S. states, excluding Rhode Island, Hawai‘i, and Puerto Rico. WHOOP Whoop, the most advanced fitness and health wearable available. Your personalised fitness and health coach to recover faster, sleep better, and train smarter. Claim your first month free on join.whoop.com/simon. Whoop ships to 56+ international markets, including the US, Canada, most of Europe, Australia, New Zealand, UAE, Singapore, and parts of Asia. Simon Hill, MSc, BSc (Hons) Creator of theproof.com Host of The Proof with Simon Hill Author of The Proof is in the Plants Subscribe & Connect: YouTube Apple Podcasts Spotify Instagram: @simonhill Twitter: @theproof Facebook: The Proof with Simon Hill Nourish your gut with my Plant-Based Ferments Guide and download my Two-Week Meal Plan.
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    49 mins
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I enjoyed the presentation by the author.

The chapters were varied and interesting with a consistent theme running through.

The bundled PDF document is useful for reference.

A compelling evidence-based for plant based nutrit

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What more do you need to say.
Listen and change what you do - it’s that simple.

Advice back by science and data

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Incredibly informative. Covered all the questions I had been wanting answers for. As a perimenopausal woman with a few family members with dementia and alzheimers I have been trying to find the best way of protecting my own brain health. This episode provides plenty of pointers on how to do just that. Thank you for tackling this difficult subject with such fantastic Drs. Really helpful & I will be re-listening and taking notes!

Excellent

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