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Sigma Nutrition Radio

Danny Lennon
Nutrition Science
Cardiovascular Disease
Nutrition
Ultra-Processed Foods
Public Health
Cholesterol
Cardiovascular Health
Obesity
Performance Nutrition
Sports Nutrition
Mental Health
Chronic Diseases
Eating Disorders
Gut Microbiome
Nutrition Research
Mediterranean Diet
Dietary Patterns
Inflammation
Dietary Fiber
Misinformation

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.

PublishesWeeklyEpisodes639Founded12 years ago
Number of ListenersCategories
NutritionHealth & Fitness

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Artwork for Sigma Nutrition Radio

Latest Episodes

Medical screening is often framed as an uncomplicated good: if disease is found earlier, treatment can begin earlier and outcomes should improve.

This episode examines why that reasoning is incomplete. Screening can produce benefit, but it can also... more

What does the evidence actually show when we look at plant-based dietary patterns through the lens of food processing? And does classifying foods as "ultra-processed" meaningfully change how we interpret the relationship between plant-based diets and... more

In nutrition and health coaching, one of the central challenges is understanding how people actually change, particularly when life is complex, motivation fluctuates, and behaviour is shaped by emotion, identity, environment, and relationships.

In ... more

Supplement safety is often discussed in very general terms, but in practice the risks depend heavily on the individual. A supplement that is reasonable for one person may be inappropriate for another based on their medications, health conditions, dos... more

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Recent Guests

Alysha Thompson
Lead author of the discussed paper; Research fellow at the Co-Centre for Sustainable Food Systems, Queen's University Belfast
Queen's University Belfast
Episode: #615: Why Processing Doesn't Determine the Healthfulness of Plant-Based Diets – Alysha Thompson, PhD
Krista Scott-Dixon
Nutrition coach, educator, author of a behavior-change textbook
Precision Nutrition (former), Author of Steal This Coaching
Episode: #614: The Human Skills of Nutrition Coaching – Krista Scott-Dixon, PhD
Giulia Guerrini
Registered pharmacist; researcher at Examine; safety lead for Supplement Navigator
Examine
Episode: #613: Supplement Safety & Medication Interactions – Giulia Guerrini, MPharm
Katherine Appleton
Professor of psychology at Bournemouth University, researching healthy eating and taste preferences
Bournemouth University
Episode: #612: Does Sweet Taste Exposure Actually Develop Preference? – Prof. Katherine Appleton
Kylee Van Horn
Sports dietitian; endurance athlete; founder of Fly Nutrition
Fly Nutrition
Episode: #611: Electrolyte Mythology: Wellness Marketing vs. Evidence - ZoΓ« Rom & Kylee Van Horn
ZoΓ« Rom
Ultra runner; background in science and environmental journalism; commentator on nutrition messaging in media
Your Diet Sucks podcast
Episode: #611: Electrolyte Mythology: Wellness Marketing vs. Evidence - ZoΓ« Rom & Kylee Van Horn
James Morehen
Performance nutritionist in elite rugby, PhD
England Rugby (Head Nutritionist, Men's Senior Team); Bristol Bears; boxing nutrition work
Episode: #608: Performance Nutrition in Elite Rugby – James Morehen, PhD
Emily Leeming
Researcher at King's College London; dietitian
King's College London
Episode: #607: Gut Health & Microbiome Testing: What Evidence Do We Actually Have? – Emily Leeming, PhD
Luke Hanna
Nutrition coach with a master's in Obesity and Clinical Nutrition from University College London; online coach working with clients on body composition goals
Luke Hanna Nutrition / self-employed nutrition coach
Episode: #606: Practical Nutrition Strategies for Fat Loss – Luke Hanna

Host

Danny Lennon
Host of nutritional science discussions; leads interviews and coordinates show directions.

Reviews

4.9 out of 5 stars from 1.4k ratings
  • Great speakers but lack scientific humility

    Great discussions from leading experts but sadly fail to demonstrate the humility needed as true scientists. The scientific method requires constant evaluation and at any time will be only partially β€œcorrect” representation of the truth.. They weaken their stance by suggesting they are the only source of truth, whilst failing to understand the wider role of food in people’s lives.

    Apple Podcasts
    2
    MedicalPodder
    United Kingdom8 months ago
  • Mmm

    I have not lissoned to this so bast on the reviews

    Apple Podcasts
    4
    Uam a monkey
    United Kingdoma year ago
  • Reliable + Evidence Based

    Evidence based, nuanced, no hype. Expert interviews, deep dives, detailed and clear explanations. My go-to source for all nutrition questions. Having listened to well over 100 episodes, Sigma has easily become my favorite podcast. Danny is an exceptional interviewer, and he and Alan have a talent for cutting through the confusion to tease out what the science really shows (and how/why). I’ve grown in careful, critical thinking in all spheres of life. Highly recommend.

    Apple Podcasts
    5
    JJSchroeder
    United Statesa year ago
  • πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²

    πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ‘©πŸ»β€πŸ¦²πŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’…πŸΌπŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ’΄πŸ†πŸ†πŸ†πŸ†πŸ†πŸ†πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»βœŒπŸ»βœŒπŸ»βœŒπŸ»βœŒπŸ»βœŒπŸ»βœŒπŸ»βœŒπŸ»βœŒπŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»πŸ‘πŸ»

    Apple Podcasts
    5
    #DowntonAbbeyfan!
    United Kingdoma year ago
  • Low Carb Denialists

    Flanagan has a blind hatred of people who regain their health an quality of life by adopting a low carb diet.

    Apple Podcasts
    1
    Combination Lock
    Australia2 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Many reviews highlight practical, actionable insights and strong interview skills by the host.
Listeners praise rigorous, evidence-based discussions and high-quality guests.
Some criticism centers on perceived arrogance or dismissiveness toward non-mainstream views.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Talking Points

Recent interactions between the hosts and their guests.

#615: Why Processing Doesn't Determine the Healthfulness of Plant-Based Diets – Alysha Thompson, PhD
Q: How did you construct the dietary patterns and handle NOVA processing in the Plant-Based Diet Index?
They used the Plant-Based Diet Index (PDI) and crossed it with NOVA processing levels to create four patterns (high/low UPF, high/low PDIs), allowing analysis of health outcomes across combined diet quality and processing dimensions.
#615: Why Processing Doesn't Determine the Healthfulness of Plant-Based Diets – Alysha Thompson, PhD
Q: For you, what was the research question that guided the study design?
The study aimed to understand whether the content of ultra-processed foods modifies the association between plant-based diet quality and long-term health outcomes, effectively combining two active areas of nutrition research.
#611: Electrolyte Mythology: Wellness Marketing vs. Evidence - ZoΓ« Rom & Kylee Van Horn
Q: What are electrolytes and how are they supposed to relate to hydration and performance?
Electrolytes are charged ions that help with fluid balance; they are lost in sweat, but the link between supplementation and performance is nuanced, with many scenarios where extra electrolytes do not meaningfully improve performance. Useful guidance involves considering the type of activity, environment, and individual needs rather than assuming more is better.
PMOS (PCOS) and Diet: What Can Nutrition Realistically Do? - SNP#50
Q: Do different PCOS phenotypes respond differently to the same intervention?
Yes, different phenotypes can respond differently to dietary interventions, which supports a personalized approach that accounts for the dominant features (e.g., hyperandrogenism, ovulatory dysfunction, metabolic disturbances) in each individual.
PMOS (PCOS) and Diet: What Can Nutrition Realistically Do? - SNP#50
Q: Does PCOS alter appetite regulation in a way that affects adherence to a healthy diet?
PCOS can be associated with appetite-related factors and psychological considerations that influence adherence, underscoring the need for non-ststigmatizing, sustainable dietary approaches that fit individual circumstances.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

Listeners per Episode
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Frequently Asked Questions About Sigma Nutrition Radio

What is Sigma Nutrition Radio about and what kind of topics does it cover?

The show consistently centers on evidence-based nutrition science, exploring how dietary patterns, metabolic processes, and lifestyle factors influence health and performance. Across episodes, topics range from fiber and gut health to fasting, chronobiology, and the nuances of nutrition research methodology, all discussed with researchers, clinicians, and practitioners. Listeners can expect deep dives into study design, practical applications for clients or patients, and thoughtful critiques of prevailing nutrition claims. A standout feature is the blend of rigorous science with real-world coaching and clinical perspectives, making complex findings accessible without oversimplification.

Where can I find podcast stats for Sigma Nutrition Radio?

Rephonic provides a wide range of podcast stats for Sigma Nutrition Radio. We scanned the web and collated all of the information that we could find in our comprehensive podcast database. See how many people listen to Sigma Nutrition Radio and access YouTube viewership numbers, download stats, audience demographics, chart rankings, ratings, reviews and more.

How many listeners does Sigma Nutrition Radio get?

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What are the audience demographics for Sigma Nutrition Radio?

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How many subscribers and views does Sigma Nutrition Radio have?

To see how many followers or subscribers Sigma Nutrition Radio has on Spotify and other platforms such as Castbox and Podcast Addict, simply upgrade your account. You'll also find viewership figures for their YouTube channel if they have one.

Which podcasts are similar to Sigma Nutrition Radio?

These podcasts share a similar audience with Sigma Nutrition Radio:

1. Iron Culture presented by MASS
2. Barbell Medicine Podcast
3. The Proof with Simon Hill
4. The Dr. Layne Norton Podcast
5. The Revive Stronger Podcast

How many episodes of Sigma Nutrition Radio are there?

Sigma Nutrition Radio launched 12 years ago and published 639 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

How do I contact Sigma Nutrition Radio?

Our systems regularly scour the web to find email addresses and social media links for this podcast. We scanned the web and collated all of the contact information that we could find in our podcast database. But in the unlikely event that you can't find what you're looking for, our concierge service lets you request our research team to source better contacts for you.

Where can I see ratings and reviews for Sigma Nutrition Radio?

Rephonic pulls ratings and reviews for Sigma Nutrition Radio from multiple sources, including Spotify, Apple Podcasts, Castbox, and Podcast Addict.

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What guests have appeared on Sigma Nutrition Radio?

Recent guests on Sigma Nutrition Radio include:

1. Alysha Thompson
2. Krista Scott-Dixon
3. Giulia Guerrini
4. Katherine Appleton
5. Kylee Van Horn
6. ZoΓ« Rom
7. James Morehen
8. Emily Leeming

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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