The Proof with Simon Hill

The Proof with Simon Hill

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.

Episodes

March 9, 2026 84 mins
In this episode, I’m joined by Dr Kristen Knutson to unpack circadian health and how timing influences our metabolism, cardiovascular health, and sleep quality. We discuss the role of morning light, meal timing, exercise, and regularity, and why modern lifestyles often push our biology out of sync. Dr Knutson also clarifies common misconceptions about melatonin, wearable sleep trackers, and what to do if you wake up in the middle ...
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Dr Lauren Colenso-Semple and Dr Alyssa Olenick join me to answer a question I hear constantly from women in midlife: “Why am I putting in so much effort, but not seeing the results?” We break down what matters most for strength, body composition, and long term health, and what is simply noise. You’ll come away with a clear framework for resistance training, a realistic view of cardio, and a calmer approach to progress that does no...
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Dr Brad Schoenfeld and Alan Aragon join me to explore protein requirements, recomposition, and how to structure resistance training for long-term strength and muscle retention. We discuss calorie deficits, effort, failure, recovery, and the training variables that matter most for healthy ageing. What We Cover Protein targets in and out of a calorie deficit Recomp versus surplus for muscle growth Effort, failure, and rep...
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The 2025 US Dietary Guidelines are out, and they’ve sparked debate across the nutrition world. In this episode, I sit down with Dr David Katz to examine where the new recommendations align with science and where they diverge from the Dietary Guidelines Advisory Committee’s evidence review. We discuss the increased emphasis on meat and protein, contradictions around saturated fat and full-fat dairy, the controversy around seed oils...
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Can diet really reverse atherosclerosis, or is that an overpromise? Since sharing my own coronary CT angiogram results, this question has come up almost daily. In this episode, I revisit the best clinical trials to see what the evidence actually says. I break down six randomised controlled trials and explain how different dietary patterns influence plaque progression, plaque stability, and cardiovascular events. What we cover ...
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I’m joined by Dr Robert Eckel to unpack why obesity is far more complex than a BMI number and why insulin resistance plays such a central role in cardiometabolic disease. We discuss preclinical versus clinical obesity, fat distribution, metabolic risk, and what actually improves health outcomes beyond weight loss alone. What We Cover Why BMI is only a starting point Preclinical versus clinical obesity explained Why visc...
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Fertility is not just about timing ovulation. In this episode, Dr Natalie Crawford explains how sleep, stress, insulin resistance, diet, toxins, supplements, and lifestyle choices influence egg and sperm quality, miscarriage risk, and fertility outcomes. We cover fertility myths, evidence-based nutrition, supplements that matter, and when medical treatments like IVF or egg freezing make sense. What We Cover Sleep, inflammatio...
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Could your gut microbiome influence how many calories you absorb from the same food? Karen Corbin explains the science behind energy absorption, faecal calorie loss, and why feeding your microbes may support metabolic health. We also cover practical diet upgrades, the reality on probiotics, and where microbiome research is heading next, including metabolite signatures and gut–brain links. What We Cover How the microbiome may ...
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In this episode, Drew Harrisberg and I go deep on life beyond macros and metrics. We talk about gratitude, regret, ageing, and how constant optimisation can quietly pull us away from what actually matters. We also cover living with type 1 diabetes, health tech, social sport, future wellness trends, and why simplicity, connection, and play may be the real foundations of long-term wellbeing. What We Cover Optimisation culture v...
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I sit down with Dr Luc van Loon to unpack what really happens to protein in the body, from digestion to muscle and organ tissue. We explore why muscle protein synthesis is often misunderstood, how inactivity drives muscle loss, and what the research actually says about protein needs across the lifespan. What We Cover Ice baths and their impact on muscle adaptation Protein absorption, muscle protein synthesis, and common myt...
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In Part 2 of Highlights of 2025, I revisit some of the most important conversations from the year on The Proof, covering cardiovascular prevention, blood pressure, cholesterol, nutrition, sustainability, and performance. Featuring insights from Dr Laurence Sperling, Dr Thomas Dayspring, Dr Dan Soffer, Dr Raymond Townsend, Dr Hannah Ritchie, Dr Iñigo San Millán, and Dr Dawn Mussallem, this episode focuses on evidence-based strategi...
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Welcome to Part 1 of our Highlights of 2025 series, where I revisit the most important conversations from the year on The Proof, spanning nutrition science, misinformation, and long-term health. This episode features highlights from Dr Matthew Nagra, Dr Rupy Aujla, Drew Harrisberg, Dr Steven Novella, Dr Bill Harris, Dr David Katz, Doug Evans, Dr Suzanne Devkota, Dr Jessica Knurick, and Dr Walter Willett, covering protein quality, ...
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In this episode, I’m joined by cardiac dietitian Michelle Routhenstein to unpack why heart disease prevention is still so misunderstood. We explore cholesterol confusion, blood pressure, saturated fat, carbs, supplements, and why personalised nutrition matters far more than rigid dietary rules. Michelle explains how food choices influence plaque progression, inflammation, gut health, and heart rhythm, and why sustainable habits, n...
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In this episode I sit down again with microbiome researcher Dr Suzanne Devkota to explore what a healthy microbiome really is and how we can support it. We unpack diversity, early life programming, fibre and microbiota accessible carbohydrates (MACs), plus the genuine role of probiotics, prebiotics and postbiotics. Suzanne also shares cutting edge research on short chain fatty acids, Akkermansia, inflammatory bowel disease, viscer...
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In this episode I am joined by Mark Manson, author of The Subtle Art of Not Giving a Fck*, to talk about why so many of us build our lives around “shitty values” and what it takes to change. We discuss regret, shame and the stories we tell ourselves, and how taking responsibility without blaming yourself can transform the way you move through the world. Mark shares his counterintuitive values framework, why you actually need failu...
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Dr Walter Willett has spent more than fifty years at the forefront of nutrition research, leading landmark studies that have shaped how we think about fat, carbohydrates, protein and chronic disease. In this episode, he joins me to untangle decades of confusion around saturated fat, seed oils, dairy, eggs, plant protein and more, and to explain what a truly healthy dietary pattern looks like when you consider both human health and ...
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Dr Jessica Knurick joins me to examine the systems influencing America’s health. We discuss the gap between individual choices and public health realities, the rise of MAHA, and why many proposed solutions fail to address the real drivers of chronic disease. Jessica breaks down regulation, subsidies and the role of corporations, the truth about food dyes and additives, and why SNAP remains essential for reducing food insecurity an...
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Do women really need a completely different training plan to men, or has the "women are not small men" message been taken too far? I am joined by exercise scientist Dr Lauren Colenso-Semple to explore what the science actually shows about female physiology, menstrual cycles, menopause and strength training. We look at how women respond to exercise in real outcome studies, where hormone based claims come from, and how to build a si...
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Protein is one of the most talked-about nutrients, yet confusion remains about how much we need and which sources are best. I am joined by Dr Matthew Nagra to unpack the science on protein intake, plant versus animal sources, and how to build strength and longevity without compromising your health or the planet. What We Cover The evidence-based protein range for muscle and strength How plant and animal protein compare whe...
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I’m joined by author and coach Axel Schura to explore how hardship can lead to transformation. Axel shares his story of stage four cancer and the mindset shifts that inspired his new book “Maybe This Is Happening For You, Not To You”. We discuss fear, recovery, and how to find strength and meaning when life feels uncertain. What We Cover Shifting from “why me” to “what now” Facing fear with curiosity and compassion Tool...
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