In this episode of The Proof, I explore male fertility with Dr. Ramy Abou Ghayda, a leading urologist specialising in reproductive health. Together, we unpack the science behind sperm health, bust common myths, and provide evidence-based strategies for optimising male fertility.

You'll discover:

Whether you're planning a family or simply interested in optimising your reproductive health, this conversation offers valuable insights and actionable advice from one of the field's leading experts.

This episode is brought to you by:

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Head to Eimele.com and use code SIMON at checkout for 10% off your first order.

38TERA

Consider 38TERA's DMN-01 prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

LMNT

LMNT’s Chocolate Medley is back. A variety pack of choc mint, choc chai, and choc raspberry electrolytes for proper hydration. Stay hydrated with LMNT. Receive a free LMNT sample pack with any order when you purchase via drinklmnt.com/simon.

Eight Sleep

Upgrade your sleep with the Pod 4 Ultra 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 for $350 off at eightsleep.com/theproof. Try it risk-free for 30 days, with worldwide shipping.

NordVPN

Protect your personal data and browse with confidence using NordVPN. With fast servers and advanced encryption, NordVPN protects you – even on public Wi-Fi – and unlocks content worldwide. EXCLUSIVE NordVPN Deal ➼ https://nordvpn.com/theproof. Try it risk-free with a 30-day money-back guarantee.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Episode #348. Love isn’t just a feeling – it’s a skill. Relationship coach Jillian Turecki joins me to explore the habits, mindsets, and tools you need to build and sustain meaningful love.

We explore the role of self-esteem, how to navigate conflict, and what makes a relationship worth fighting for. Packed with insights on compatibility, healthy communication, and cultivating love, this episode offers practical advice for every stage of your relationship journey.

Specifically, we discuss:

Jillian Turecki’s book, It Begins With You, is available here. Connect with her on Instagram, Twitter/X, and TikTok. Learn more about Jillian and discover her courses at https://www.jillianturecki.com/. Listen to Episode #273 with Jillian here.

This episode is brought to you by:

38TERA

Consider 38TERA's DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Follow this link for 20% off one-time purchases and subscriptions.

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.

Function Health

Track, optimise, and thrive with Function Health. Access 100+ lab tests – five times more than a typical physical – including ApoB and LP(a), no doctor approval needed. Get science-backed insights and track your results over time. Skip the 400,000-person waitlist at functionhealth.com/simonhill. Only available to those living in the United States.

Shopify

Shopify, the world's leading e-commerce platform, helps you turn browsers into buyers with the internet’s best-converting check out–up to 36% better compared to other leading e-commerce platforms. To boost your conversion rate, and grow your business, sign up for a one-dollar-per-month trial period at shopify.com/proof.

Notion

Notion is the all-in-one workspace that helps you organise your work and life seamlessly. It’s been the backbone of The Proof since 2018, streamlining everything from guest bios and show notes to managing episodes. With Notion AI, you can take your productivity to the next level—generate ideas, summarise content, and organise tasks effortlessly. Try Notion for free at notion.com/theproof and experience the difference for yourself!

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Episode #347. Two friends, four studies, endless insights. Join me as I sit down with Drew Harrisberg to break down the latest in nutrition, fitness, and longevity, sharing surprising truths you won’t want to miss. Along the way, we reflect on my recent debate with Dr Robert Kiltz, exploring key takeaways and how they fit into the broader conversation about diet and health.

Learn about the impact of smartphone use on workout performance, how many calories you really burn during exercise, and whether a large dose of creatine can conquer a poor night’s sleep. This episode is packed with groundbreaking research and practical tips to help you make more informed choices for your health.

Specifically, we cover:

To connect with Drew, you can reach him via his Instagram or website, Drew’s Daily Dose, where you can also find his training program. To hear more from Drew, check out his previous episodes on The Proof.

Head to the full show notes for additional insights, resources, and supporting studies. Join the Living Proof Challenge at https://theproof.com/livingproof/.

This episode is brought to you by:

38TERA

Consider 38TERA's DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Follow this link for 20% off one-time purchases and subscriptions.

Eight Sleep

Upgrade your sleep with the Pod 4 Ultra 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 for $350 off at eightsleep.com/theproof. Try it risk-free for 30 days, with worldwide shipping.

Momentous

My go-to supplement brand for protein and creatine is Momentous. Get 20% off your first purchase by using the code LIVINGPROOF at checkout at livemomentous.com.

Birch

Sleep deeply and wake up refreshed with a Birch Natural Mattress, combining premium natural materials with unbeatable comfort. Rest easy with a 100-night trial and 25-year warranty. Get 25% off all mattresses and 2 free pillows at birchliving.com/simonhill.

Calm

Find your calm anytime, anywhere with Calm, the #1 app for meditation and relaxation. From guided meditations to sleep stories and breathing exercises, Calm helps you reduce stress, improve focus, and sleep better. Visit calm.com/proof for 40% off a premium subscription today.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Connect with me on Instagram, Twitter, and Facebook

Nourish your gut with my Plant-Based Ferments Guide

Download my complimentary Two-Week Meal Plan and high protein Plant Performance recipe book

Episode #346. Keen to commit to your health in 2025? Tune in for the ultimate cheat sheet, packed with the best insights from 2024 on nutrition, fitness, and longevity. This is your chance to reflect, reset, and step into the new year with actionable tips from the brightest minds in health and wellness.

This special episode features wisdom from world-class experts, including Alan Aragon, Dr Kevin Maki, Dr Carol Kirkpatrick, Dr Nicholas Burd, Dr Venki Ramakrishnan, Dr Thomas Dayspring, Dr Kellyann Niotis, Dr Christos S. Mantzoros, Dr Karl Nadolsky, Dr Daniel Soffer, Dr Michael Hill, Dr Alyssa Olenick, Dr Jen Gunter, Robin Sharma, and Dr Christopher Gardner.

Specifically, we cover:

Head to the full show notes for more insights and to connect with today’s featured guests.

This episode is brought to you by:

38TERA

Consider 38TERA's DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Follow this link for 20% off one-time purchases and subscriptions.

NordVPN

Protect your personal data and browse with confidence using NordVPN. With fast servers and advanced encryption, NordVPN protects you – even on public Wi-Fi – and unlocks content worldwide. EXCLUSIVE NordVPN Deal ➼ https://nordvpn.com/theproof. Try it risk-free with a 30-day money-back guarantee.

Shopify

Shopify, the world's leading e-commerce platform, helps you turn browsers into buyers with the internet’s best-converting check out–up to 36% better compared to other leading e-commerce platforms. To boost your conversion rate, and grow your business, sign up for a one-dollar-per-month trial period at shopify.com/proof.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Connect with me on Instagram, Twitter, and Facebook

Nourish your gut with my Plant-Based Ferments Guide

Download my complimentary Two-Week Meal Plan and high protein Plant Performance recipe book

Episode #345. Don’t take your eyesight for granted. Join me as I sit down with optometrist Dr Joseph Allen to discover science-backed ways to care for your eyes, including common eye health myths, practical strategies for protecting your vision, and expert advice on maintaining healthy eyes for life.

Learn how diet and lifestyle affect your eyesight, the truth about blue light glasses, and why regular eye exams are essential. Dr Allen also shares tips on contact lens safety, myopia prevention, and keeping your eyes healthy for years to come.

Specifically, we discuss: 

Learn more from Dr Joseph Allen on YouTube, and connect with him on Instagram, Facebook, or Twitter/X.

This episode is brought to you by:

38TERA

Consider 38TERA's DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Follow this link for 20% off one-time purchases and subscriptions.

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.

Momentous

My go-to supplement brand for protein and creatine is Momentous. Get 20% off your first purchase by using the code LIVINGPROOF at checkout at livemomentous.com

Pique Tea

Pique's Nandaka provides sustainable, all-day energy and makes you feel like you’re doing something good for your body! Try Pique and get up to 20% off plus a FREE rechargeable frother and glass beaker when you purchase exclusively at piquelife.com/simon.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Connect with me on Instagram, Twitter, and Facebook

Nourish your gut with my Plant-Based Ferments Guide

Download my complimentary Two-Week Meal Plan and high protein Plant Performance recipe book

Episode #344. Creatine isn’t just for athletes – it’s a powerhouse supplement that benefits people of all ages and activity levels. Join me to unpack the science behind creatine and explore five evidence-based reasons why it could play a vital role in improving your health and performance.

You’ll learn how creatine supports muscle strength, endurance, brain function, and even bone health. I’ll also break down dosing guidelines, clear up common misconceptions, and explore how this safe, well-studied supplement could be a game-changer for your health and performance.

Specifically, we discuss:

This episode is brought to you by:

38TERA

Consider 38TERA's DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Follow this link for 20% off one-time purchases and subscriptions.

Momentous

My go-to supplement brand for protein and creatine is Momentous. Get 20% off your first purchase by using the code LIVINGPROOF at checkout at livemomentous.com.

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.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Connect with me on Instagram, Twitter, and Facebook

Nourish your gut with my Plant-Based Ferments Guide

Download my complimentary Two-Week Meal Plan and high protein Plant Performance recipe book

Episode #343. Vegan vs. carnivore – which diet stands up to the science? Join me in this fiery debate to find out. Hosted by Ellen Fisher, this thought-provoking episode pits me, Simon Hill, against Dr Robert Kiltz, a leading voice in the carnivore and keto movements.

Together, we explore opposing perspectives on nutrition, from the hierarchy of evidence to the health implications of plant-based and animal-based diets. Whether you’re vegan, carnivore, or somewhere in between, this conversation will challenge your views and help you make more informed decisions about your health and the planet.

Specifically, we discuss:

Discover more of The Ellen Fisher Podcast at https://www.ellenfisher.com/podcast. Learn more about Dr Kiltz at https://www.doctorkiltz.com/blog/.

This episode is brought to you by:

38TERA

Consider 38TERA's DMN-01 prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Head to Eimele.com and use code SIMON at checkout for 20% off your first order and subscriptions.

NordVPN

Protect your personal data and browse with confidence using NordVPN. With fast servers and advanced encryption, NordVPN protects you – even on public Wi-Fi – and unlocks content worldwide. EXCLUSIVE NordVPN Deal ➼ nordvpn.com/theproof. Try it risk-free with a 30-day money-back guarantee.

Momentous

My go-to supplement brand for protein and creatine is Momentous. Get 20% off your first purchase by using the code LIVINGPROOF at checkout at livemomentous.com

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Episode #342. My all-in-one guide to nutrition: learn how to eat for health, performance, and the planet. In this special episode, I’m interviewed by Kristen Holmes, VP of Performance Science at WHOOP, for a conversation about the principles of plant-based eating and how our food choices influence long-term health and recovery.

You’ll learn about the key principles of a healthy diet, the truth about protein and legumes, and the environmental impact of what’s on your plate. We also explore fascinating WHOOP data on how diet affects sleep and recovery, making this episode essential listening for anyone looking to optimise their health, performance, and wellness through nutrition.

Specifically, we cover:

This episode is brought to you by:

38TERA

During Black Friday week get 20% off 38TERA's complete prebiotic DMN. Formulated by Dr Will Bulsiewicz and myself, DMN is the perfect way to conveniently take your gut health to the next level. Discount automatically applied at checkout at 38tera.com.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Head to [Eimele.com](https://eimele.com/essential-8/15660280.html.) and use code SIMON at checkout for 20% off your first order and subscriptions.

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.

LMNT

LMNT’s Chocolate Medley is back. A variety pack of choc mint, choc chai, and choc raspberry electrolytes for proper hydration. Stay hydrated with LMNT. Receive a free LMNT sample pack with any order when you purchase via drinklmnt.com/simon.

Momentous

My go-to supplement brand for protein and creatine is Momentous. Get 20% off your first purchase by using the code LIVINGPROOF at checkout at livemomentous.com.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Connect with me on Instagram, Twitter, and Facebook

Nourish your gut with my Plant-Based Ferments Guide

Download my complimentary Two-Week Meal Plan and high-protein Plant Performance recipe book

Episode #341. Confused about oils, butter, and fats in your diet? This masterclass explores which fats to prioritise, which to avoid, and how different types of fats influence your health. This episode features both a solo deep dive into the science of fats and expert contributions from past guests, offering practical tips and evidence-based guidance for smarter food choices.

Joining me in this episode are world-class experts, including Dr Philip Calder, Dr Gary Fraser, Dr Gil Carvalho, Prof Roy Taylor, Dr Alan Flanagan, Dr Matthew Nagra, Dr Walter Willett, Dr Ayesha Sherzai, and Dr Dean Sherzai. Together, we unpack the science behind dietary fats and provide evidence-based insights to guide your long-term health decisions.

Specifically, we discuss:

Head to the full show notes for additional resources and to connect with today’s guests.

This episode is brought to you by:

38TERA

During Black Friday week get 20% off 38TERA's complete prebiotic DMN. Formulated by Dr Will Bulsiewicz and myself, DMN is the perfect way to conveniently take your gut health to the next level. Discount automatically applied at checkout at 38tera.com.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Head to Eimele.com for 20% off your first order and subscriptions.

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.

Pique Tea

Pique has unveiled its most exclusive Black Friday Cyber Monday offer ever! Get free exclusive gifts with link: piquelife.com/simon.

Shopify

Shopify, the world's leading e-commerce platform, helps you turn browsers into buyers with the internet’s best-converting check out–up to 36% better compared to other leading e-commerce platforms. To boost your conversion rate, and grow your business, sign up for a one-dollar-per-month trial period at shopify.com/proof.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Connect with me on Instagram, Twitter, and Facebook

Nourish your gut with my Plant-Based Ferments Guide

Download my complimentary Two-Week Meal Plan and high protein Plant Performance recipe book

Episode #340. Think metabolic health is all about carbs and calories? You might be missing a crucial part of the puzzle. Join me as I break down how the location and type of fat your body stores can dramatically impact your health and risk of disease.

In this episode, you'll learn how body fat distribution influences your risk of metabolic disease, why weight impacts individuals differently, and how to determine if you have excess fat in your liver. Plus, discover my 6 key tips for enhancing your metabolic health through diet, exercise, and lifestyle adjustments.

Specifically, we discuss:

Discover more insights and supporting studies in the full show notes.

This episode is brought to you by:

38TERA

Consider 38TERA's DMN-01 prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Follow this link to Eimele's website for 20% off your first order and subscriptions.

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.

Momentous

My go-to supplement brand for protein and creatine is Momentous. Use code LIVINGPROOF at checkout for 25% off and receive a free gift of 5 nights of their best-selling Sleep packs for orders over $75 at livemomentous.com.

Eight Sleep

Upgrade your sleep with the Pod 4 Ultra 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 to get up to $600 off your Pod 4 Ultra purchase when bundled at eightsleep.com/theproof. This is their highest offer of the year! Try it risk-free for 30 days, with worldwide shipping.

Birch

Sleep deeply and wake up refreshed with a Birch Natural Mattress, combining premium natural materials with unbeatable comfort. Rest easy with a 100-night trial and 25-year warranty. Get 25% off all mattresses and 2 free pillows at birchliving.com/simonhill.

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 show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family.

Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

Watch the episodes on YouTube or listen on Apple/Spotify

Connect with me on Instagram, Twitter, and Facebook

Nourish your gut with my Plant-Based Ferments Guide

Download my complimentary Two-Week Meal Plan and high protein Plant Performance recipe book