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SNR #253: Listener Q&A

Danny answers questions submitted by podcast listeners. To submit yours, go to


SNR #252: Alpana Shukla, MD – Effect of Food Order on the Glycaemic Response

Dr Shukla is an Assistant Professor of Research in Medicine at Weill Cornell Medical College and an Assistant Attending Physician at New-York Presbyterian Hospital. Dr Shukla’s clinical interests and expertise include management of obesity and related metabolic complications including type 2 diabetes. Dr Shukla obtained her medical degrees, MBBS and MD, from and completed internal medicine residency at Grant Medical College & J J Group of Hospitals in Mumbai, India. She subsequently trained...


SNR #251: What Is Science?

In this episode Danny discusses the concept of “what is science?” with input from: In This Episode We Discuss


SNR #250: Mike T Nelson, PhD - Metabolic Flexibility Revisited

Mike has a PhD in exercise physiology from the University of Minnesota, with that work focusing on the concept of metabolic flexibility. In addition, he has a MS in biomechanics and an adjunct professor and a member of the American College of Sports Medicine. In This Episode We Discuss How to correctly think about metabolic flexibility Metabolic flexibility in adipose and muscle tissue Fuel use in type 2 diabetes Why ketogenic diets do not increase metabolic flexibility What drives...


SNR #249: James Clear - Habits & Behaviour Change

On his blog James primarily writes on how we can create better habits, make better decisions, and live better lives. He combines ideas from a wide range of disciplines including biology, neuroscience, psychology, philosophy, and more. He is the author of Atomic Habits, the creator of the Habits Academy, a weightlifter, and a travel photographer in over 30 countries. In This Episode We Discuss Buy tickets for Sigma Nutrition Radio LIVE!...


SNR #248: Kyra Bobinet, MD – Behaviour Change Through Design Thinking

When it comes to health engagement, Dr. Bobinet has 5 words of advice: be caring, authentic, and useful. As the CEO-founder of engagedIN, Kyra devotes her life to helping people crack the code of how, what, and especially, WHY we engage. Kyra has founded several healthcare start-ups, spanning behavior health, population health, and mobile health. She has designed behavior change programs, big data algorithms, billion dollar products, mobile health apps, and evidence-based studies in...


SNR #247: John Kiely – Scepticism, Cognitive Bias & Applying Science to Practice

John is Senior Lecturer in Elite Performance at the Institute of Coaching & Performance at the University of Central Lancashire. He has published a long list of peer-reviewed work, notably on stress and periodization, and is well known for questioning conventional dogmas withing strength & conditioning literature and practice. John’s career within sport has been relatively varied, having experienced life as an international competitor, coach, sports scientist and strength and conditioning...


SNR #246: Jamie Pugh, PhD – Gastrointestinal Symptoms in Athletes

Jamie Pugh is a post-doctoral research at Liverpool John Moores University. During his PhD and current work, he has looked at the effect exercise can have on the gastrointestinal system and in more recent work, looked at the effects probiotic supplementation can have on endurance athletes. He has also worked as a consultant nutritionist and physiologist for a number of professional teams and extreme endurance athletes. In This Episode We Discuss The range and severity of symptoms athletes...


SNR #245: Artin Entezarjou, MD – Simplifying Science & Interpreting Research

Artin is a medical doctor, currently completing his intern rotations at Helsingborg Hospital, Sweden. He is also currently completing a PhD in Artificial Intelligence in eVisits in Primary Care. Outside of medicine, Artin co-founded EBT (Evidence Based Training), a brand dedicated to making science on health, fitness and nutrition digestible and understandable to the public, mostly through Instagram, but also their blog. In This Episode We Discuss What it means to simplify science How to...


SNR #244: Ian Dunican, PhD – Sleep & Impact of Weight Cutting

Ian is currently the Director and Principal Consultant of Melius Consulting and has a PhD from the University of Western Australia (UWA), where he worked with elite sporting organisations/athletes to optimise sleep, recovery and performance. He is also the Director of Sleep4Performance and an Adjunct Researcher at Monash University, Australia. Ian has worked with elite and highly trained athletes at the Australian Institute of Sport (AIS), West Australian Institute of Sport (WAIS),...


SNR #243: Valentin Tambosi - Time Frames for Natural Bodybuilders

Valentin is a pro natural bodybuilder and coach based in Vienna, Austria. He has been working as a personal trainer and physique coach for several years. As an athlete he is a professional natural bodybuilder with the IPE. Valentin is also a speaker at Intelligent Strength for their Strength Coach program. In This Episode We Discuss Come to Sigma Nutrition Radio LIVE! in Dublin this November:


Special Announcement: Sigma Nutrition Radio LIVE!

Tickets: Four true world-class experts in the world of nutritional sciences will join SNR host Danny Lennon for a day of deep-diving conversations on the most cutting-edge and important topics in nutrition. Joining Danny on stage will be: --> Martin MacDonald - Mac-Nutrition --> Kirsty Elliot-Sale, PhD - NTU --> James Morton, PhD - Team Sky & LJMU --> Nicola Guess, PhD, RD - King's College, London TICKET INFO:


SNR #242: Jake Mey, PhD, RD – How Much Sugar is Too Much?

Jake is a registered dietitan and a human nutrition researcher. His work focuses on diet, muscle & metabolism. He is a Postdoctoral Research Fellow in Integrated Physiology and Molecular Medicine at the Pennington Biomedical Research Center. He is also a contractor in Inflammation and Immunity research at the renowned Cleveland Clinic. In This Episode We Discuss Sigma Nutrition Radio LIVE! - Event in Dublin:


SNR #241: Elise Facer-Childs – Circadian Phenotypes, Brain Function & Athletic Performance

Elise Facer-Childs is currently a Doctoral Researcher working at the University of Birmingham on sleep, circadian rhythms and neuroimaging. She works with human participants to uncover the impact that our body clocks can have on brain structure and function, genetics, physiology and performance. Elise has presented her research at an International Conference for the European Biological Rhythms Society (EBRS)/World Chronobiology Congress (WCC) and has given presentations at the UK’s largest...


SNR #240: Erica Goldstein, RD – Exercise-Associated Anemia, Hepcidin Activity & Implications for Athletes

Erica is a registered dietitian, currently completing a PhD at the University of Central Florida in Orlando. Previously she was employed as a Clinical and Sports Dietitian at the Mayo Clinic in Jacksonville, Florida, where Erica provided individual sports nutrition consultation to endurance and team sport athletes, in addition to providing care and educating oncology patients in the hospital. She has a M.A. in Exercise Science and Health Promotion from FAU, in addition to a B.S. in...


SNR #239: Carl Juneau, PhD – Does Muscle Damage Actually Cause Hypertrophy?

Carl is an exercise scientist with a PhD in physical activity epidemiology. He is also the founder of the Dr. Muscle app. In This Episode We Discuss


SNR #238: Andi & Alex Pürzel – Behind Intelligent Strength

Andi and Alex are the guys behind Intelligent Strength, a company that produces education on strength training and body composition through seminars and books. The brothers also have a gym in Vienna, Austria; Das Gym. Das Gym is a truly unique place. And when you talk to Alex & Andi you immediately understand why. The gym opened in 2016 and it’s hard to imagine there being another place like it on the planet. Andi has a long career as a coach and educator. As an athlete he first competed...


SNR #237: Martin MacDonald – The Influences, Experiences & Journey of an Industry Leader

More Martin is a clinical performance nutritionist and the founder of Mac-Nutrition, a thriving nutrition consultancy boasting sought after long-term internship and weekend mentorship programs. He has also developed Mac-Nutrition Uni, the UK’s first ever evidence-based, nutrition course that can be completed online. Martin has worked as a performance nutritionist in elite sport with British Weight Lifting, Derby County Football Club, English swimming and other elite sport...


SNR #236: Kevin Ashworth, MSc - Understanding Anxiety & How To Deal With It

Kevin received his Bachelor’s in Psychology from Washington State University, before completing his Masters Degree in Counseling Psychology at Pacific University. His focus remained on anxiety and models for working with children, which led to completing anxiety focused training during his tenure at Pacific University. During this time, he authored three publications on anxiety and completed his dissertation on the effectiveness of Collaborative Problem Solving. Kevin has earned...


SNR #235: Ciaran O’ Regan – Combat Sports Weight Regain After Weigh-in (Research Breakdown)

Ciaran has a BSc. in Sport & Exercise Science from the University of Limerick. He currently is a strength & conditioning coach in Cork, Ireland and works online with combat sport athletes on their nutrition and fight prep here at Sigma Nutrition. He has experience as a fighter himself, competing at a national-level for many years in amateur boxing, as well as competing in kickboxing, K1 and BJJ. Paper Reviewed: Silveira-Coswig et al., 2018 – Weight Regain, But Not Weight Loss, Is Related...