Sigma Nutrition Radio

Dr. Nicky Keay is a medical doctor (MB BChir, MRCP) with specific training in endocrinology. She has published related to female athlete hormone profiling, energy availability, and relative energy de…

Dr. Hana Kahleova is the director of clinical research at the Physicians Committee and directs research testing the effect a plant-based diet has on metabolism, insulin function, fitness, and mental …

Danny & Alan discuss a recent paper on time-restricted eating that has been inaccurately interpreted by some as a "disproval" of TRE as an intervention. In this episode, the aim is to provide some co…

Danny & Alan discuss issues with using and interpreting meta-analyses in nutritional science, they answer a question about methods of reheating food, and they highlight a recent paper published by qu…

Dr. James Hébert is a nutritional and cancer epidemiologist, currently a distinguished Professor at the University of South Carolina. Dr. Hébert’s professional focus for the past several years has be…

Danny and Alan take a look at the evidence on weight loss maintenance, answer a question about ApoE4, and admit another nonsensical claim into the quack asylum. In this episode:

[02:56] Today's Topic…

Glenn Gibson is Professor of Food Microbiology at University of Reading. He has been researching bacteria in the gut for over 30 years. Together with his colleague Marcel B. Roberfroid, both research…

Dr Peter Olusoga is a Senior Lecturer in Psychology at Sheffield Hallam University. His current research focuses on stress, burnout and wellbeing in sports, with a particular interest in high-perform…

Professor Naomi Allen was appointed Chief Scientist for UK Biobank in 2019, having joined UK Biobank in November 2011 as Senior Epidemiologist. She is Professor of Epidemiology at the Nuffield Depart…

Today's Topic in Focus: Omega-3 Supplementation & Heart Disease [01:52] 

"I Have a Question!" [66:30]: UK government obesity plan. 

Quack Asylum [87:00]: Is a gram of PUFA in chicken worse than 250g …

Alex Thomas is the founder of Sports Nutrition Association (SNA), which is global association that contains Sports Nutrition Australia, Sports Nutrition NewZealand, Sports Nutrition Asia, and Sports …

Dr. Kathryn Bradbury, PhD is a researcher at the University of Auckland, New Zealand. Her research has focused on examining the role of diet in the development of cancer, cardiovascular disease and o…

Dr. Rebecca Leech is a Registered Nutritionist and Nutritional Epidemiologist, based at Deakin’s Institute for Physical Activity and Nutrition.

Rebecca has a PhD in Nutritional Epidemiology, and in 2…

Prof. Martin Caraher is Emeritus Professor of food and health policy at Centre for Food Policy at City, University of London. He has worked for and acted as a consultant to the UK Department of Healt…

Danny & Alan discuss how to understand causality in nutrition research. The episodes includes: inferring causality vs demonstrating causality, the hierarchy of evidence vs. standards of proof,  the e…

Diana Rodgers and Robb Wolf are the co-authors of Sacred Cow, a book exploring the important role of animals in our food system.

Diana is a Registered Dietitian living on a working organic farm i…

Professor Corinna Hawkes has been working for the past 20 years with UN agencies, governments, NGOs and academia at the local, national and international level to support the design of more effective…

Alex J. O’Connor is founder of the Cosmic Skeptic YouTube channel, podcast and blog; platforms dedicated to the publication of philosophical ideas and debates in an accessible format. He is currently…

Professor Paul B. Thompson holds the W.K. Kellogg Chair in Agricultural, Food and Community Ethics at Michigan State University, where he serves on the faculty in the departments of Philosophy, Commu…