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.
#377: Herman Pontzer, PhD – Metabolism, Mitochondria & Evolutionary Biology
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
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
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
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?
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.
[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
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
Customer ReviewsSee All
The best place to find out what the research really says
At this point, I've probably listened to over 1000 hours of podcast episodes on the subject of health and human performance, most of them centered around the topic of nutrition. I've always tried to limit my listening to presenters who relied on what appeared to be a careful review of the scientific literature on the subject.
Recently, I have begun to take a short program in clinical epidemiology through the Imperial College of London. The things that I have learned there have caused me to revisit some of my own recent blog posts that I had hoped were a careful analysis of research literature. I realized that there were many things that I had not understood before I begin my formal study of epidemiology. Now, I have come to the somewhat sad conclusion that even some of the more trusted names in the world of health oriented blogs and podcasts either don't properly know how to interpret research or, even worse, are willfully cherry-picking information that is designed to promote their products, books, get them speaking engagements and advertisers etc.
So, I searched specifically for podcasts on the topic of clinical epidemiology and soon found this one. I can't say too much about how impressed I am with the work they are doing at Sigma nutrition. It really is the most unbiased and detailed review of the scientific literature on health and fitness, especially in the area of nutrition. In addition to the excellent podcast, I highly recommend reading the Sigma statements on their website. If you really want to understand what the evidence says about diet and health, these statements are undoubtedly the best resource currently available for the educated layperson.
Not as good as it used to be
It was a lot better when Danny didn’t have a cohost. Alan is a smart guy but I find myself dozing off when he speaks. Also annoying how he espouses his political views often. I loved when it was just Danny having different guests each episode with topics in their area of expertise.
Alan needs to keep his political and religious beliefs out of the podcast. Take your own advice and stay in your area of expertise