Sigma Nutrition Radio

By Danny Lennon

What's Sigma Nutrition Radio about?

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.

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Sigma Nutrition Radio episodes:

04.23.2024
SNP28: How To Eat for Longevity
In a world flooded with claims, advice, and recommendations on how to extend our lifespan, the buzz around various diet approaches, supplement regimens, and lifestyle hacks is deafening. But amidst the noise, one must pause to ponder: Are these claims...
04.16.2024
#519: Eating Disorders: Inpatient Treatment & Challenges – Helen West, RD
Acronyms & Terminology: NHS - National Health Service (UK) CAMHS eating disorder unit - Child & Adolescent Mental Health Service Tier 4 Services - CAMHS services are organized through a tiered system. Tier 4 is the highest on the hierarchy and relates...
04.09.2024
#518: Nutritional Geometry, Philosophy of Science & A Case for Reductionism – Prof. David Raubenheimer & Jonathan Sholl, PhD
Links: Course: Applied Nutrition Literacy Subscribe to Premium Go to episode page (study links, bio, etc.) About This Episode: There has been much debate about the role of nutritional reductionism in research. This approach generally aims to study...
04.03.2024
#517: Reflecting on Ten Years of Lessons
Links: Enroll in our new course! Go to episode page Subscribe to Sigma Nutrition Premium About This Episode: Sigma Nutrition is ten years old this week! Over this time, I’m grateful for a wealth of insights garnered from...
03.27.2024
#516: How to Read Nutrition Studies (Become Confident in Critically Appraising Research)
Links: COURSE: Applied Nutrition Literacy Episode page About This Episode: Navigating the vast landscape of research literature, particularly in the realm of nutrition science, presents numerous challenges for readers seeking to extract meaningful insights. Before diving into research...
03.25.2024
it's finally here...
Join the email list here. Applied Nutrition Literacy Core Modules: Being a Scientific Thinker How to Read Research Effectively to Inform Practice Becoming Comfortable with Common Statistical Methods Considerations for Interpreting Nutrition Research Nutritional Epidemiology Randomised Controlled Trials and...
03.19.2024
AMA: Do Low-carbers Need Less Vitmain C? Does Omega-3 Supplementation Actually Benefit Us? & More (SNP 27)
Questions Answered in This Episode: [01:22] Do “low-carbers” need less vitamin C? [14.56] If you were to advise a company to establish solid workplace health fundamentals, what would you tell them? [26.20] Which compounds typically found in animal products would be interesting...
03.12.2024
#515: Does Dietary Fat Quality Causally Affect Atherosclerosis Risk? – Jacob Christensen, PhD
Links: Go to episode page Subscribe to Premium See recommended resources Receive the Sigma email newsletter About This Episode: The question of whether dietary fat quality causally affects atherosclerosis risk has been a subject of extensive research and...
03.05.2024
#514: Plant-derived Fatty Acids – Ella Baker, PhD
Links: Go to episode page Subscribe to Premium Join the Sigma mailing list Sigma's Recommended Resources About This Episode: There is a lot of interesting research going on related to plant-derived fatty acids, owing to their potential to...
02.27.2024
#513: Kidney Stones & Diet – Deepa Kariyawasam, RD
Links: Go to episode page Subscribe to Premium Sigma's recommended resources Join our email newsletter for free About This Episode: Kidney stones, crystalline deposits formed within the kidneys, present a formidable challenge to individuals grappling with their debilitating...
02.20.2024
What are Dietary Reference Intakes? Origins, Development & Use (SNP 26)
Acronyms: RDA = Recommended Dietary Allowance AI = Adequate Intake UL = Tolerable Upper Intake Level EAR = Estimated Average Requirement About This Episode: Dietary Reference Intakes (DRIs) are a set of nutrient reference values, developed in the...
02.13.2024
#512: Alzheimer’s Disease – Drs. Ayesha & Dean Sherzai
Links: Go to episode page (with episode resources) Subscribe to PREMIUM Get the Sigma email newsletter See Sigma's recommended resources About This Episode: Alzheimer’s disease has a profound impact on individuals, families, and societies worldwide. As a progressive...
02.06.2024
#511: Null By Design – When “No Effect” Doesn’t Mean No Effect
Links: Go to episode page (with episode resources) Subscribe to Premium Receive the Sigma Nutrition newsletter About This Episode: Numerous nutrition studies present findings of “no effect,” but interpreting such results requires caution. A null finding, indicating an...
01.30.2024
#510: Social Comparison: Evidence on its Impacts & What We Can Do – Shannon Beer
Links: Go to episode page (with supporting links/resources) Subscribe to PREMIUM Learn more about Sigma Nutrition Crushing Comparisons course About This Episode: Social comparison theory, developed by psychologist Leon Festinger in the 1950s, posits that individuals determine their...
01.23.2024
AMA: Coconut Oil, Raw Oats, Collagen, & More! (SNP 25)
Questions Answered in This Epsiode: [02:16] How would you implement a calorie surplus for “bulking” in healthy trainees without compromising their health markers? [15:25] If you were to advise someone with a heavy workload and busy schedule on how to establish...
01.16.2024
#509: Helping Clients & Patients Overcome Nutrition Confusion – Jono Steedman, APD
Links: Go to episode page Subscribe to Premium Sigma's recommended resources Bite Me Nutrition – Australia Instagram: @jonosteedman @dannylennon_sigma About This Episode: There is no shortage of misleading, confusing and even dangerous nutrition information on...
01.09.2024
#508: Why Athletes Can Achieve High Performance During an Energy Deficit – Jose Areta, PhD
Links: Go to episode page (with study links) Subscribe to Premium Sigma's recommended resources Get our weekly email newsletter About This Episode: Insufficient energy availability can significantly disrupt normal hormonal, metabolic, and physiological processes, prompting the body to...
01.02.2024
#507: Does a Higher Portfolio Diet Score Reduce Heart Disease? – Andrea Glenn, PhD
Links: Episode page (with study links) Subscribe to Premium Join Sigma email newsletter About This Episode: The Portfolio diet is a nutritional approach that has garnered attention for its ability to reduce blood lipids and thus improve cardiovascular...
12.26.2023
Listener Q&A: Homocysteine, MUFA, Healhty BMI, and more! (Preview)
This episode is one of our Premium-exclusive AMA (ask me anything) episodes, where we answer questions submitted by Premium subscribers. To listen to the full 90 minute episode, you’ll need to be a Premium subscriber and access the episode on the private Premium feed....
12.19.2023
#506 Sports Nutrition: Translating Research to Practice – Andreas Kasper, PhD
Links: Go to episode page (with links to studies) Subscribe to PREMIUM Join Sigma's email newsletter Sigma's Recommended Resources About This Episode: Navigating the intricate landscape of sports nutrition is one that constantly evolves and challenges our understanding...
12.12.2023
#505: Oslo Diet-Heart Study: Cholesterol-lowering Diets & Cardiovascular Events
Links: Go to episode page (with study links) Subscribe to PREMIUM Receive our email newsletter About This Episode: The Oslo Diet-Heart Study was one of the earliest randomized controlled trials to explore the relationship between diet and heart...
12.05.2023
#504: Vegetable Oil vs. Saturated Fat – Analysis of the LA Veterans Study
Links: Go to episode page (with study links) Receive Sigma's email newsletter Subscribe to PREMIUM - get study notes to this episode About This Episode: In 1959 a landmark clinical trial, often referred to as the LA Veterans...
11.28.2023
#503: Lyon Diet Heart Study – Canola Oil, “Mediterranean” Diets & Minimizing Bias
Links: Go to episode page (with resources) Subscribe to Premium Learn more about Sigma Nutrition About This Episode: The Lyon Diet Heart Study (LDHS) is often cited as one of the pivotal studies that helped establish the Mediterranean...
11.21.2023
#502: Sydney Diet-Heart Study – Is Linoleic Acid Causing Heart Disease?
Links: Go to episode page (with study links) Subscribe to Premium Past episodes referenced: Episodes 493, 481 & 317 Further reading: How Diet Influences Heart Disease Risk About This Episode: The Sydney Diet-Heart Study was a clinical trial...
11.14.2023
Addressing Some Criticisms of Nutritional Epidemiology (SNP 23)
Note: This is a Premium-exclusive episode, so in order to listen to the full episode you’ll need to subscribe to Sigma Nutrition Premium. About This Episode Nutritional epidemiology has faced strong criticism over time. While some of the methodological...
11.07.2023
#501: Sex-based Training Recommendations: Evidence-based or Hype? – David Nolan, PhD
Links: Go to episode page (with study links) Subscribe to PREMIUM Receive emails from Sigma Nutrition Sigma's Recommended Resources About This Episode: The field of research exploring sex differences in exercise response has yielded intriguing findings, shedding light...
10.31.2023
#500 – The Big Unanswered Questions in Nutrition Science
Links: Subscribe to PREMIUM to get study notes to this episode Go to episode page to see background detail & links See our recommended resources for further learning Previous episodes referenced: SNP17: Is Personalized Nutrition Superior to...
10.24.2023
#499: How Sensory Cues Impact Food Choice & Behavior – Prof. Ciarán Forde
Links: Subscribe to PREMIUM Go to episode page (with further reading links) Receive our weekly emails About This Episode: Sensory cues, comprising taste, smell, texture, and appearance, serve as the initial drivers that influence our food preferences and...
10.17.2023
The PREDIMED Trial – Controversy, Criticisms, & Lessons Learned (SNP 22)
Links: Subscribe to PREMIUM Go to episode page Learn more about the podcast Sigma's recommended resources About This Episode: PREDIMED (Prevención con Dieta Mediterránea) is a landmark clinical trial conducted in Spain. The study made a huge splash...
10.10.2023
#498: The PROPEL Trial & Weight Loss Interventions in Primary Care – John Apolzan, PhD
Links: Subscribe to PREMIUM Go to episode page (with linked studies) Receive the weekly Sigma email newsletter Recommended resources About this Episode: The PROPEL (Promoting Successful Weight Loss in Primary Care in Louisiana) trial was a cluster-randomized weight...
10.03.2023
#497: Are Food Frequency Questionnaires Reliable?
Links: Go to episode page Subscribe to PREMIUM Recommended resources Receive Sigma's free email newsletter Learn more about the podcast About This Episode: Food frequency questionnaires (FFQs) have been widely employed in nutrition research to assess dietary intake...
09.26.2023
SNP21: Sick Individuals and Sick Populations
Links: Subscribe to Premium Sigma recommended resources Learn more about the podcast About this episode: In 1985 a paper titled “Sick Individuals and Sick Populations” was published in the International Journal of Epidemiology. The paper, authored by eminent epidemiologist Geoffrey...
09.19.2023
#496: ATBC Cancer Prevention Study – Crucial Lessons
Links: Go to episode page Subscribe to PREMIUM Get our free weekly emails Learn more about Sigma Nutrition Radio About This Episode: The Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study (ATBC) stands as a seminal and pioneering research endeavor within...
09.12.2023
#495: Circadian Clocks in Muscle & Exercise as a Time Cue – Prof. Karyn Esser
Links: Episode page with extra resources Subscribe to PREMIUM Receive our free weekly emails Learn more about Sigma Nutrition Radio About this Episode: The field of circadian biology has long been associated with regulating diurnal physiological processes, notably...
09.05.2023
#494: Multiple Risk Factor Intervention Trial
Links: Go to episode page (with study links & resources) Subscribe to PREMIUM Receive our weekly newsletter More episodes on cholesterol & heart disease About This Episode: The Multiple Risk Factor Intervention Trial (MRFIT) was a groundbreaking clinical...
08.29.2023
#493: The Keys Equation – How Dietary Fats Impact Blood Cholesterol
Links: Go to episode page (with resources for this episode) Subscribe to PREMIUM Join the Sigma email newsletter Learn more about Sigma Nutrition Radio About this Episode: One of the most important and influential papers in nutrition science...
08.24.2023
Announcement: I Wrote a Book!
The book: makingweightbook.com What if you could guarantee your diet and weight-cutting plan would maximize performance? Take control and transform your performance with… Making Weight: The Ultimate Science-based Guide to Cutting Weight for Combat Sports. Whether...
08.22.2023
SNP20: The Cumulative Exposure Model of LDL-C & Heart Disease
This is a Premium-exclusive episode, so here you'll only hear a preview. In order to listen to the full episode you’ll need to subscribe to Sigma Nutrition Premium. About This Episode: It has been clearly demonstrated that elevated LDL-cholesterol (LDL-C), or...
08.15.2023
#492: How Does Weight Cycling Impact Long-term Health?
Links: Resources and info for this episode Subscribe to PREMIUM Receive Danny's weekly email newsletter About This Episode: Losing at least 5% of one’s initial body weight is associated with improvements in glycaemic control, blood pressure, triglyceride levels,...
08.08.2023
#491: Do High Protein Intakes Cause Insulin Resistance?
Links: Episode Resources Subscribe to PREMIUM Receive our weekly newsletter About This Episode: There has been interest in, and debate about, how protein intake impacts metabolic health, particularly in relation to insulin resistance and type 2 diabetes risk....
08.01.2023
#490: How Does Exercise Impact Beta-cell Function in Type 2 Diabetes? – Mark Lyngbæk, MD
Links: Go to episode page Subscribe to PREMIUM Receive our free weekly emails About This Episode: The management of type 2 diabetes has long been a challenge, but a new study conducted by researcher Mark Lyngbaek and his...
07.25.2023
What is a Causal Risk Factor? (AMA with Alan)
Links: Subscribe to PREMIUM Episode page Receive Sigma emails About this Episode: We've just released a lengthy 'ask me anything' episode, where Dr. Alan Flanagan addressed specific listener questions, over on the Sigma Nutition Premium feed. In this...
07.18.2023
#489: Inequalities in Diabetes Outcomes for African & Caribbean Communities – Prof. Louise Goff
Links: Go to episode page (with resources) Receive Danny's weekly emails Twitter: @NutritionDanny Subscribe to PREMIUM About This Episode: In the UK, there is a threefold higher incidence of type 2 diabetes in UK African and Caribbean (AfC)...
07.11.2023
#488: Does Time of Day Impact Hunger, Appetite & Satiety?
Links: Episode page (with links to resources) Receive Danny's weekly emails Subscribe to PREMIUM About This Episode: The topic of whether hunger and satiety are affected by the time of day has generated considerable interest within the nutrition...
07.05.2023
#487: Weight Cutting in Combat Sports – Jordan Sullivan
Links: Join notification list for book pre-orders Go to episode page (w/ resources) Subscribe to Sigma Nutrition Premium About This Episode: “Weight cutting” is a common practice in weight-class based sports. And typically, combat sport athletes have reported...
06.27.2023
#486: Blood Glucose Spikes: How High is Too High? – Mario Kratz, PhD & Nicola Guess, PhD
Links: Go to episode page (with resources) Receive Danny's weekly emails Subscribe to PREMIUM Twitter: @NutritionDanny Instagram: @dannylennon_sigma About This Episode: Peaks in blood glucose (or “blood sugar spikes”) are commonly highlighted as something harmful to health. And,...
06.20.2023
#485: Does Menopause Alter Appetite?
Links: Go to episode page Receive Danny's weekly emails Subscribe to PREMIUM About This Episode: Menopause is commonly associated with hormonal changes and physical symptoms, such as hot flashes, mood changes, sleep issues, and weight gain. Based on...
06.13.2023
SNP18: What is a Healthy Low-Carb Diet?
Links: Go to episode page Subscribe to PREMIUM Receive Danny's weekly email Twitter: @NutritionDanny Instagram: @dannylennon_sigma About This Episode: Note: This is a Premium-exclusive episode, so in order to listen to the full episode you’ll need to subscribe...
06.06.2023
#484: Is Metabolic Adaptation an Illusion? – Eric Trexler, PhD
Links: Episode page with resources Subscribe to PREMIUM MASS Research Review About This Episode: Metabolic adaptation refers to the process by which the body adjusts its metabolism in response to changes in energy intake or body mass. This...
05.30.2023
#483: What are the Effects of Very High Fiber Intakes?
Links: Episode page (with links to studies mentioned) Subscribe to PREMIUM Receive Danny's free weekly email About This Episode: The benefits of consuming a higher fiber diet have been consistently demonstrated in nutrition research. Epidemiology clearly shows that...

What's Sigma Nutrition Radio about?

Download our free app to listen on your phone

Sigma Nutrition Radio episodes:

SNP28: How To Eat for Longevity

#519: Eating Disorders: Inpatient Treatment & Challenges – Helen West, RD

#518: Nutritional Geometry, Philosophy of Science & A Case for Reductionism – Prof. David Raubenheimer & Jonathan Sholl, PhD

#517: Reflecting on Ten Years of Lessons

#516: How to Read Nutrition Studies (Become Confident in Critically Appraising Research)

it's finally here...

AMA: Do Low-carbers Need Less Vitmain C? Does Omega-3 Supplementation Actually Benefit Us? & More (SNP 27)

#515: Does Dietary Fat Quality Causally Affect Atherosclerosis Risk? – Jacob Christensen, PhD

#514: Plant-derived Fatty Acids – Ella Baker, PhD

#513: Kidney Stones & Diet – Deepa Kariyawasam, RD

What are Dietary Reference Intakes? Origins, Development & Use (SNP 26)

#512: Alzheimer’s Disease – Drs. Ayesha & Dean Sherzai

#511: Null By Design – When “No Effect” Doesn’t Mean No Effect

#510: Social Comparison: Evidence on its Impacts & What We Can Do – Shannon Beer

AMA: Coconut Oil, Raw Oats, Collagen, & More! (SNP 25)

#509: Helping Clients & Patients Overcome Nutrition Confusion – Jono Steedman, APD

#508: Why Athletes Can Achieve High Performance During an Energy Deficit – Jose Areta, PhD

#507: Does a Higher Portfolio Diet Score Reduce Heart Disease? – Andrea Glenn, PhD

Listener Q&A: Homocysteine, MUFA, Healhty BMI, and more! (Preview)

#506 Sports Nutrition: Translating Research to Practice – Andreas Kasper, PhD

#505: Oslo Diet-Heart Study: Cholesterol-lowering Diets & Cardiovascular Events

#504: Vegetable Oil vs. Saturated Fat – Analysis of the LA Veterans Study

#503: Lyon Diet Heart Study – Canola Oil, “Mediterranean” Diets & Minimizing Bias

#502: Sydney Diet-Heart Study – Is Linoleic Acid Causing Heart Disease?

Addressing Some Criticisms of Nutritional Epidemiology (SNP 23)

#501: Sex-based Training Recommendations: Evidence-based or Hype? – David Nolan, PhD

#500 – The Big Unanswered Questions in Nutrition Science

#499: How Sensory Cues Impact Food Choice & Behavior – Prof. Ciarán Forde

The PREDIMED Trial – Controversy, Criticisms, & Lessons Learned (SNP 22)

#498: The PROPEL Trial & Weight Loss Interventions in Primary Care – John Apolzan, PhD

#497: Are Food Frequency Questionnaires Reliable?

SNP21: Sick Individuals and Sick Populations

#496: ATBC Cancer Prevention Study – Crucial Lessons

#495: Circadian Clocks in Muscle & Exercise as a Time Cue – Prof. Karyn Esser

#494: Multiple Risk Factor Intervention Trial

#493: The Keys Equation – How Dietary Fats Impact Blood Cholesterol

Announcement: I Wrote a Book!

SNP20: The Cumulative Exposure Model of LDL-C & Heart Disease

#492: How Does Weight Cycling Impact Long-term Health?

#491: Do High Protein Intakes Cause Insulin Resistance?

#490: How Does Exercise Impact Beta-cell Function in Type 2 Diabetes? – Mark Lyngbæk, MD

What is a Causal Risk Factor? (AMA with Alan)

#489: Inequalities in Diabetes Outcomes for African & Caribbean Communities – Prof. Louise Goff

#488: Does Time of Day Impact Hunger, Appetite & Satiety?

#487: Weight Cutting in Combat Sports – Jordan Sullivan

#486: Blood Glucose Spikes: How High is Too High? – Mario Kratz, PhD & Nicola Guess, PhD

#485: Does Menopause Alter Appetite?

SNP18: What is a Healthy Low-Carb Diet?

#484: Is Metabolic Adaptation an Illusion? – Eric Trexler, PhD

#483: What are the Effects of Very High Fiber Intakes?