

Sigma Nutrition Radio
Danny Lennon
Discussions about the science of nutrition, dietetics and health. The podcast that educates through nuanced conversations, exploring evidence and cultivating critical thinking. Hosted by Danny Lennon.
Episodes
Mentioned books

Oct 10, 2017 • 54min
SNR #201: Eric Helms - Anabolic Sensitivity & High-Protein Bulking [Research Breakdown]
http://sigmanutrition.com/mass PhD researcher Eric Helms of Auckland University of Technology is on the podcast to breakdown two interesting research papers. We look at a paper on protein overfeeding and another on the effect of body fat on anabolic sensitivity. Eric, along with Greg Nuckols and Dr. Mike Zourdos, created the monthly reserach review MASS (Monthly Applications in Strength Sports), which breaks apart some of the recent research carried out that is relevant to strength athletes, bodybuilders and powerlifters. Research Papers Discussed In This Episode: Study #1: de Moraes et al., 2017 - Protein Overfeeding is Associated with Improved Lipid and Anthropometric Profile thus Lower Malondialdehyde Levels in Resistance-Trained Athletes Study #2: Beals et al., 2016 - Anabolic sensitivity of postprandial muscle protein synthesis to the ingestion of a protein-dense food is reduced in overweight and obese young adults Get MASS: http://sigmanutrition.com/mass

13 snips
Oct 2, 2017 • 1h 34min
SNR #200: Saturated Fat Panel Discussion - Nadolsky, Guyenet, Masterjohn & Dieter
Dr. Spencer Nadolsky, a family and obesity medicine physician, joins obesity researcher Stephen Guyenet, nutritional scientist Chris Masterjohn, and exercise physiologist Brad Dieter for an enlightening discussion on saturated fat. They explore its controversial role in heart health and chronic diseases, emphasizing how dietary context influences its impacts. The panel highlights the importance of overall dietary patterns over specific fatty acids and advocates for personalized approaches in nutrition. Expect to rethink saturated fat’s implications on appetite, metabolism, and overall health!

Sep 25, 2017 • 1h
SNR #199: Ciaran Fairman - Exercise-Oncology: Effects of Exercise in Cancer Treatment & Survivorship
Ciaran Fairman, M.S. is currently working on his doctorate in the Kinesiology program at The Ohio State University. Ciaran received his M.S. in Kinesiology from Georgia Southern University, working in the Human Performance laboratory, and holds several nationally accredited certifications through the American College of Sports Medicine (CPT, HFS, CET), and International Society of Sports Nutrition (CISSN). Ciaran's research interests focus on the effects of acute and chronic interventions on physiological and psychosocial outcomes in different populations. More recently, Ciaran has focused his interest on cancer survivors. He is the founder and chief exercise physiologist at REACH, a non- profit organization aimed at providing cancer patients and survivors with evidence based recommendations of physical activity and lifestyle behaviors to optimize survivorship. Ciaran has published over 15 peer-reviewed papers, book chapter, and abstracts on sports nutrition, supplementation, and training adaptations. Support the podcast: patreon.com/sigmanutrition

Sep 19, 2017 • 47min
SNR #198: Richard Nikoley - Ketosis: A Call For for Context & Sanity
Richard Nikoley is the man behind the blog Free the Animal, which as of 2016, contains over 4,000 posts and 100,000 comments from readers. He has written about his learnings on health, diet, and lifestyle. In This Episode We Discuss: Discussions around ketosis Calorie-deficit induced ketogenic diet vs. nutritional ketosis at calorie balance Anti-lipolytic nature of ketones Inaccurate claims about ketosis and ketogenic diets Hierarchy of factors influencing body composition

Sep 14, 2017 • 46min
SNR #197: Kyle Mamounis, PhD - Fatty Acid Metabolism & Implications for Health
Kyle J. Mamounis, has a doctoral degree in nutritional science from Rutgers University in New Brunswick, New Jersey USA. He is currently a researcher at University of Central Florida in Orlando. His primary research interest is investigating the effects of fatty acids on energy balance regulation. He maintains a science blog with posts on his research interests, reviews of science magazine articles and general cellular physiology at www.nutricrinology.com.

Sep 11, 2017 • 1h 2min
SNR #196: Rob Wildman, PhD - Nutrient Timing & the 24-Hour Approach to Workout Nutrition
Rob Wildman, PhD, is the Chief Science Officer for DYMATIZE Enterprises and an adjunct research faculty member at Kansas State University, known for his expertise in sports and fitness nutrition. He discusses the shift towards a holistic 24-hour approach to workout nutrition, emphasizing that performance and recovery strategies should extend beyond the immediate post-workout window. Wildman highlights the importance of nighttime nutrition and protein timing, debunks misconceptions about protein intake, and underscores the role of resistance training in enhancing muscle health.

Sep 4, 2017 • 47min
SNR #195: Brendan Egan, PhD - Exogenous Ketone Supplementation
Brendan holds a position as Senior Lecturer in Sport and Exercise Physiology in the School of Health and Human Performance at Dublin City University. His current research investigates the molecular regulation of skeletal muscle function and adaptation across the life course, with special interest in the synergy between nutrition and exercise interventions to optimise performance in athletes and elderly. He received his BSc Sport and Exercise Science from the University of Limerick in 2003, MSc Sport and Exercise Nutrition from Loughborough University in 2004, and PhD from Dublin City University in 2008, before completing two years of post-doctoral training with Prof. Juleen Zierath’s Integrative Physiology group at the Karolinska Institute, Sweden. His doctoral studies focussed on skeletal muscle adaptation to exercise, and in particular the continuity between acute molecular responses to individual bouts of exercise and adaptations induced by exercise training, whereas his post-doctoral training utilised animal models and in vitro cell systems to investigate the transcriptional regulation of skeletal muscle development and mechanisms of insulin resistance. He joined the faculty in the School of Public Health, Physiotherapy, and Sport Science at University College Dublin in 2011, where he spent five years, and retains a position as Visiting Associate Professor. On the sporting front, he has played inter-county Gaelic football with Sligo since 2003, and consults as a performance nutritionist to elite team sport athletes.

Aug 29, 2017 • 50min
SNR #194: Daniel Davey - Applied Performance Nutrition for Team Field Sports
Leinster Rugby performance nutritionist Daniel Davey discusses how to apply evidence-based nutrition practices with team sport athletes in elite-level sport. Daniel received his BSc in Science from University College Dublin and holds an MSc in Nutrition, Physical Activity & Public Health from the University of Bristol. Daniel is also a Certified Strength & Conditioning Specialist (C.S.C.S) with the NSCA, and has completed the national qualification in Exercise and Health Studies. Daniel has worked as a performance nutritionist with a host of elite athletes in a range of sports such as golf, athletics, rugby and GAA. In conjunction with his role with Leinster Rugby, Daniel also works as a performance nutritionist with the Dublin senior footballers. His primary focus is developing individualised nutrition strategies for achieving specific performance related goals. He also believes that enhancing athletes’ understanding of appropriate nutrition practices is vitally important for long-term optimum health outside of sport. In order to achieve this, he believes in providing this information in an understandable, practical and enjoyable manner. Daniel is a committed athlete himself and has played Gaelic football at intercounty level for Sligo and won an All-Ireland club football medal in 2016 with Ballyboden St’ Enda’s in Dublin. His own playing and training experience allows him to understand the practical implications of applying the science of sports nutrition to achieve peak physical condition and performance in sport.

Aug 22, 2017 • 1h 22min
SNR #193: Lyle McDonald - Nutrient Partitioning & Fuel Utilization
Lyle McDonald Lyle is the author of the Ketogenic Diet, the Rapid Fat Loss Handbook and the Guide to Flexible Dieting. He has been interested in all aspects of human performance physiology since becoming involved in competitive sports as a teenager. Pursuing a degree in Physiological Sciences from UCLA, he has spent almost 20 years of his life studying human physiology and the science, art and practice of human performance, muscle gain, fat loss and body recomposition. Over the years, in addition to working with the general public, Lyle has worked primarily with endurance athletes, a few powerlifters, and some bodybuilders. Through his books, articles and his forum, he has helped thousands lose fat, gain muscle and get stronger or perform better. In This Episode We Discuss: Fundamentals of calorie partitioning What actually influences the partitioning of fuel substrates and the fate of the calories we consume Genetic differences in how much our body composition proportionally changes when either in a hyper- or hypo- caloric diet Is there anything we can really do to modify this? Insulin sensitivity in muscle and adipose tissue Blood glucose responses to meals: For healthy individuals, how much does it matter? Should you match carbohydrate intake to insulin sensitivity?

Aug 16, 2017 • 53min
SNR #192: Shona Halson, PhD - Recovery Strategies for Elite Performance
Dr. Shona Halson is the Senior Recovery Physiologist at the Australian Institute of Sport and an Associate Editor of the International Journal of Sports Physiology and Performance. Her work involves providing athletes with advice and assistance to minimise fatigue and maximise recovery, she is responsible for conducting applied research to evaluate techniques to reduce fatigue and increase recovery. Shona has worked closely with the Australian Dolphins and their specific preparation for the Rio Olympics. Shona has a wealth of experience in the area of fatigue and recovery and she spent a number of years working as the Recovery Centre Director for the Australian Olympic Committee. In This Episode We Discuss: Periodization of recovery Cold water immersion and constrast water therapy for recovery Do recovery strategies have the potential to negatively impact adaptive responses to training? Athlete perception and "belief" in recovery modalities The importance of hydrostatic pressure: implications for hydrotherapy practice Effectively monitoring fatigue in athletes to assess training load and recovery