Sigma Nutrition Radio

Latest Episodes:

#381: Prof. Chris Packard – LDL Cholesterol, ApoB & Atherosclerosis Mar 30, 2021

Show notes

Prof. Chris Packard holds an Honorary Professorship of Vascular Biochemistry at the University of Glasgow. Over his career, Professor Packard has focussed on two aspects of atherosclerosis research, lipoprotein metabolism and how it is affected by diets and drugs, and large-scale clinical trials of lipid lowering agents. He is acknowledged as one of the leading researchers in the world in this field.

Show notes available at sigmanutrition.com/episode381

#380: Prof. Barry Popkin – The Nutrition Transition & Using Policy Actions to Create Healthier Diets Mar 23, 2021

Show notes

Prof. Barry Popkin is the W.R. Kenan Jr. Distinguished Professor of Nutrition at the University of North Carolina at Chapel Hill. He is a nutrition and obesity researcher at the Carolina Population Center and is the director of the Interdisciplinary Center for Obesity at UNC.

He developed the concept of the Nutrition Transition, the study of the dynamic shifts in dietary intake and physical activity patterns and trends around obesity and other nutrition-related noncommunicable diseases (NCD). Prof. Popkin is involved now in work on program and policy design at the national level to improve the average diet at the population level.

He has published more than 545 journal articles, and is one of the most cited nutrition scholars in the world, with more than 90,000 citations.

Show notes available at sigmanutrition.com/episode380

#379: Obesity & Chronic Disease Risk with Dr. Spencer Nadolsky Mar 16, 2021

Show notes

Danny and Alan are joined by Dr. Spencer Nadolsky. Dr. Nadolsky is a board-certified obesity specialist, lipidologist, and family physician.

In this episode we discuss the strengths and limitations of BMI, adipose tissue type and relevance to risk, hypertrophic vs. hyperplastic adipocytes, 'Metabolically Healthy Obesity', and weight stigma.

Show notes available at sigmanutrition.com/episode379

#378: Nutritional Epidemiology Mar 09, 2021

Show notes

In this episode Danny and Alan discuss some critical aspects to understand about nutritional epidemiology in order to evaluate diet-disease relationships appropriately. Of particular focus in this episode is the unique exposure of interest in nutrition studies, why its crucial to understand temporal relationships and how to think about relative risk and absolute risk. The guys finish by explaining how one can include these findings into an understanding of an overall body of evidence.

Show notes: sigmanutrition.com/episode378

#377: Herman Pontzer, PhD – Metabolism, Mitochondria & Evolutionary Biology Mar 02, 2021

Show notes

Herman Pontzer, PhD is an Associate Professor of Evolutionary Anthropology at Duke University and Associate Research Professor of Global Health at the Duke Global Health Institute. He is an internationally recognized researcher in human energetics and evolution.

Over two decades of research in the field and laboratory, Dr. Pontzer has conducted pathbreaking studies across a range of settings, including fieldwork with Hadza hunter-gatherers in northern Tanzania, fieldwork on chimpanzee ecology in the rainforests of Uganda, and metabolic measurements of great apes in zoos and sanctuaries around the globe.

Find the show notes to this episode at sigmanutrition.com/episode377

#376: Kevin Hall, PhD – Plant-based Diet vs. Ketogenic Diet: Impact on Calorie Intake Feb 23, 2021

Show notes

Dr. Kevin Hall, PhD is Senior Chief of the Integrative Physiology Section of the Laboratory of Biological Modeling at the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

His laboratory investigates how metabolism and the brain adapt in response to a variety of interventions to diet and physical activity. They carry out studies to better understand the complex mechanisms regulating macronutrient metabolism, body composition, and energy expenditure.

Recently Dr. Hall was lead author on a study titled 'Effect of a plant-based, low-fat diet versus an animal-based, ketogenic diet on ad libitum energy intake', which was published in Nature Medicine in early 2021.

[Disclaimer: By participating in this podcast, the U.S. Government, represented by the National Institutes of Health does not directly or indirectly endorse any product or service provided, or to be provided, by Sigma Nutrition.]

Link to show notes: sigmanutrition.com/episode376

#375: Salt, Sodium & Health Feb 16, 2021

Show notes

In this episode Danny and Alan discuss the current evidence base related to sodium intake and health, most notably cardiovascular disease. The episode walks through understanding diet-disease relationships, the epidemiology of sodium and health outcomes, the reasons for conflicting conlusions, sodium measurements in research, intervention trials, and more. Importantly, the claim that the sodium-CVD risk relationship exhibits a "J-shaped curve" (i.e. risk is low at moderate intakes and higher at both low and high intakes) is dissected, with recommendations given on how to reconcile all the available evidence.

#374: How to Plan a Fighter's Diet Feb 09, 2021

Show notes

In this episode Danny becomes the interviewee, as he is interviewed by sports dietitian and owner of The Fight Dietitian, Jordan Sullivan RD. Jordan oversees the diet of several UFC athletes, including champions Israel Adesanya and Alexander Volkanovski. Danny and Jordan have an in-depth chat about all aspects of nutrition and weight cutting for combat sport athletes, including the concept of the "52 week fight camp" and Danny's five-phase model of combat sport nutrition. This discussion first appeared on the Fight Science Podcast. Thanks to Jordan Sullivan for allowing its reproduction here.

Show notes: sigmanutrition.com/episode374

Weight Cutting System: sigmanutrition.com/weightcut

#373: Alcohol & Health: Is Zero Better Than Some? Feb 02, 2021

Show notes

In this episode Danny and Alan discuss the health impacts of alcohol and take a look at the research to answer whether alcohol should be viewed as having a J-shaped curve of risk or zero alcohol being better than any amount.

Segments:

[03:40] Today's Topic in Focus

[53:45] "I Have a Question!"

[62:14 ]Random Recommendations

Show notes available at sigmanutrition.com/episode373

#372: Mike Israetel, PhD – Bodybuilding, Avoiding Suffering & Lessons for Life Jan 26, 2021

Show notes

Dr. Mike Israetel is the cofounder of Renaissance Periodization, where he produces content related to training and dieting for hypertrophy, strength and bodybuidling.

Dr. Israetel is also currently a professor in the strength and hypertrophy masters program at Lehman College.

Mike is himself a competitive bodybuilder and professional Brazilian Jiu Jitsu grappler.

Show notes available at sigmanutrition.com/episode372

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