

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

Apr 24, 2018 • 52min
SNR #227: Listener Q&A Episode
Question Topics Coffee and appetite Gelatin consumption [11:10] Protein timing [14:10] The relationship between dietary cholesterol intake and cholesterol levels in the body [20:40] Increasing carbs after ketogenic diet [20:38] Is too much fiber a problem? [29:37] Anti-oxidant supplementation (mainly Vitamin C and E) and training adaptation [33:25] Do additives/preservatives accumulate in tissues? [36:20] Will increasing exercise lower NEAT? [39:55] Intermittent fasting for women [46:31]

Apr 17, 2018 • 45min
SNR #226: Prof. Stuart Phillips – Muscle Protein Balance, Protein Dose When Dieting & Anabolic Resistance
Professor Phillips is a Tier 1 Canada Research Chair in Skeletal Muscle Health. In addition to being a full Professor in Kinesiology, also an Adjunct Professor in the School of Medicine at McMaster University. He is a fellow of the American College of Sports Medicine (ACSM) and the American College of Nutrition (ACN). His research is focused on the impact of nutrition and exercise on human skeletal muscle protein turnover. He is also keenly interested in diet- and exercise-induced changes in body composition. His research is funded by the Canadian Institutes for Health Research, the National Science and Engineering Council of Canada, the Canadian Institutes for Health Research, and the Canadian Foundation for Innovation as well as the USDA. He has received more than $2.4 million in research funding in the last 3 years. Dr. Phillips was the recipient of a New Investigator Award from the Canadian Institutes for Health Research and the Ontario Premier's Research Excellence Award and in 2003 received the Canadian Society for Exercise Physiology Young Investigator Award. He currently has more than 18000 career citations, and 200 original scientific research and review papers. In This Episode We Discuss How good of a proxy for muscle growth is muscle protein synthesis? Recommendations for daily and per-meal protein intake to maximize MPS The influence of a calorie deficit on muscle protein balance: do you need more? Whole eggs lead to greater MPS than egg whites: discussion of research paper Anabolic resistance and strategies to overcome it

Apr 10, 2018 • 55min
SNR #225: Carl Juneau, PhD - Effective Reps & Strategies for Hypertrophy
Carl Juneau, PhD 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 Theory of effective reps Influence of mechanical tension, muscle damage and metabolic stress on hypertrophy Does metabolic stress really cause hypertrophy? Or is it just a by-product of mechanical tension? Methods to make use of a higher number of effective reps: rest-pause, myo-reps, drop sets, etc. Exercise selection for such methods Role of rest intervals: the U-shaped curve developed by Carl Juneau and James Krieger How strategies change with experience level

Apr 3, 2018 • 46min
SNR #224: Kurtis Frank - Understanding The Placebo Effect & Supplement Misconceptions
Kurtis Frank graduated from the University of Guelph with a bachelor's degree in Applied Human Nutrition. During his undergraduate studies in human nutrition, he co-founded the website Examine.com to gather and present as much evidence-based information on dietary supplements as possible in as unbiased a manner as possible. To that end, Kurtis worked tirelessly for seven years to make Examine the premier resource on the Internet for learning about the science of supplementation. Today, it boasts guides on over 500 supplements containing over 41,000 scientific citations. Kurtis then became Director of Research for Legion Athletics, a company that produces evidence-based supplements. There, he takes an active role in managing the scientific advisory board, creating new and improving existing formulations, writing informative articles on our blog, and generally guiding the scientific direction of the company. In This Episode We Discuss What is an accurate way to think about the placebo effect? How the placebo effect and actual drug effect are not mutually exclusive Should coaches actively "placebo their clients"? The nocebo effect People using supplements to "reduce inflammation": do they have a reason? What anti-inflammatory compounds actually work? Supplements for joint pain and joint health: what works and what doesn't? Supplements that help with sleep quality and sleep onset

Mar 26, 2018 • 44min
#223: Prof. Christopher Gardner - DIETFITS Trial 2018: Low-Fat vs Low-Carb Weight Loss Diets and Effect of Genotype and Insulin Secretion
Links: Go to episode page DIETFITS Trial About This Episode: Prof. Gardner is the Director of Nutrition Studies at the Stanford Prevention Research Center and a professor of medicine at Stanford University. He received his PhD in Nutritional Sciences at the University of California, Berkeley in 1993. His postgraduate training included a postdoctoral fellowship in cardiovascular disease epidemiology at Stanford. Dr. Gardner is passionate about two central questions that keep him up at night and get him to jump out of bed most mornings. The first of these is: What can people eat and drink (or avoid/limit) to optimize their health? Dr. Gardner has recently shifted much of his energies to a second and more challenging question: What forces and factors can successfully motivate people to improve their food and beverage choice behaviors? Study Discussed: Gardner et al., 2018 – Effect of Low-Fat vs Low-Carbohydrate Diet on 12-Month Weight Loss in Overweight Adults and the Association With Genotype Pattern or Insulin Secretion: The DIETFITS Randomized Clinical Trial

Mar 20, 2018 • 51min
SNR #222: Ari Snaevarsson - Anorexia Nervosa, Refeeding Syndrome & Potential Refeeding Strategies
Ari Snaevarsson currently works as a dietetic technician at a residential treatment center for patients with eating disorders. He graduated from Gettysburg College with his Bachelor's in Health Sciences and worked there also as a research assistant. His Capstone research was titled "How aggressively can hospitalized adolescents with anorexia nervosa be refed to prevent irreversible adverse outcomes or death?" In addition, Ari works, separate from the eating disorder field, as a Precision Nutrition Level 1 certified nutrition consultant at True Fitness & Nutrition. In This Episode We Discuss Defining anorexia nervosa & refeeding syndrome How and why we see severe hypophosphatemia play out What is the current standard of care for hospitalized anorexic patients? Is their alternatives to current standard practice that have potential? What sort of surpluses lead to appropriate rates of weight gain? Differences between whole food refeeds vs. feed tube vs. TPN (intravenous)

Mar 13, 2018 • 49min
#221: Should Resistance Training be Prescribed in Medicine? - Jordan Feigenbaum, MD
Go to the episode page here. Jordan Feigenbaum is an experienced strength coach who also has his medical degree and residency training. In addition to a veritable laundry list of credentials, Jordan is also an elite powerlifter. In This Episode We Discuss Benefits of strength training for health Why aren't recommendations to do resistance training not more widespread in medical practice? Misinterpretation of evidence-based practice Is it better to recommend people do "any exercise they like" or persuade them to strength train?

Mar 6, 2018 • 47min
SNR #220: James Krieger – Frequency, Volume and Calories for Strength & Hypertrophy
James Krieger is the founder of Weightology. He has a Master's degree in Nutrition from the University of Florida and a second Master's degree in Exercise Science from Washington State University. He is the former research director for a corporate weight management program that treated over 400 people per year, with an average weight loss of 40 pounds in 3 months. His former clients include the founder of Sylvan Learning Centers and The Little Gym, the vice president of Costco, and a former vice president of MSN. James is a published scientist, author, and speaker in the field of exercise and nutrition. He has published research in prestigious scientific journals, including the American Journal of Clinical Nutrition and the Journal of Applied Physiology. In This Episode We Discuss The recent systematic review and meta-analysis that James co-authored on training frequency and strength gain Volume for strength & hypertrophy: how many sets should you do? How much difference does a calorie surplus make for muscle gain? How much difference does a calorie surplus make for strength? What variables outside of training volume drive results? healthiq.com/sigma

Feb 26, 2018 • 54min
SNR #219: Arthur Lynch - How We Were Wrong, Mistakes Made & Lessons Learned
Arthur Lynch is a exercise physiology researcher currently pursuing his PhD at the University of Limerick. His current research focuses on the role of HMB supplementation on hypertrophy and strength performance in well-trained individuals. Arthur is an accomplished drug-free powerlifter, representing Ireland at the last two IPF World Championships and heading there again this year. He is current Irish Powerlifting Ferderation national champion in the -93kg class. Arthur coaches online here at Sigma Nutrition, working with powerlifters of all levels. healthiq.com/sigma

Feb 13, 2018 • 58min
SNR #218: Powerlifting Insights: Tuchscherer, Nuckols, Helms, & More!
Some snippets of wisdom from past episodes of the Sigma Powerlifting Podcast. Insights from: Mike Tuchscherer, Eric Helms, Greg Nuckols, Rori Alter, Matt Gary and LS McClain. European Powerlifting Conference 2018 takes place in Dublin, Ireland on July 21st and 22nd. Tickets are on sale now from europeanpowerliftingconference.com


