Sigma Nutrition Radio

353
Nutrition #100

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.

Recent Episodes
  • #560: Neurodiversity & Nutrition: Choline, ADHD, Dyslexia, and Beyond – Emma Derbyshire, PhD
    Apr 22, 2025 – 45:55
  • Do Lipids Increase During Weight Loss? (SNP39)
    Apr 15, 2025 – 20:03
  • #559: Skin Health & Nutrition – Thivi Maruthappu, PhD
    Apr 8, 2025 – 45:29
  • #558: Rethinking Ultra-Processed Foods in the Modern Food System – Duane Mellor, PhD
    Apr 1, 2025 – 52:08
  • #557: Health Psychology & Eating Behaviour – Prof. Jane Ogden
    Mar 25, 2025 – 48:46
  • SNP38: What is Quality Sleep?
    Mar 18, 2025 – 22:11
  • #556: Can We Restore the Gut Microbiome Through Dietary Changes? – Anissa Armet, PhD
    Mar 11, 2025 – 01:06:28
  • #555: What Should the Dietary Guidelines Say? – Prof. Christopher Gardner
    Mar 4, 2025 – 59:29
  • #554: Crucial Ideas for Understanding Nutrition Science
    Feb 25, 2025 – 01:13:12
  • #553: Healthy Habits for Fertility and Reproductive Health – Marjorie Nolan Cohn, RD
    Feb 18, 2025 – 40:58
  • #552: Diet & Sleep Interactions – Marie-Pierre St. Onge, PhD
    Feb 11, 2025 – 41:04
  • Multivitamin Nihilism: Is it Actually Worthless to Supplement? (SNP37)
    Feb 4, 2025 – 17:39
  • #551: How to Shift from Short-term Dieting to Sustainable Lifestyle Changes – Laurin Conlin
    Jan 28, 2025 – 01:02:19
  • #550: Eating Disorder Risk in Sport, Wellness & Fitness – Jillian Lampert, PhD, RD
    Jan 21, 2025 – 53:10
  • #549: Are We Doomed? Trust, Misinformation, and the Future of Health & Fitness Science – Joe Klemczewski, PhD
    Jan 15, 2025 – 01:19:25
  • IGF-1 and Diet: Cause For Concern? (SNP36)
    Jan 8, 2025 – 21:56
  • #548: Disordered Eating and Body Image in the Fitness Industry – Michelle Carroll
    Jan 1, 2025 – 48:07
  • #547: Healthspan, Healthy Ageing & Chronic Disease – Best of 2024
    Dec 23, 2024 – 01:06:18
  • #546: Professional Standards & Scope of Practice for Nutrition Professionals – Alex Thomas
    Dec 18, 2024 – 59:03
  • #545: Carbohydrate Metabolism, Performance & Metabolic Health – Prof. Javier Gonzalez
    Dec 10, 2024 – 56:58
  • Appetite and Satiety: Key Concepts and Practical Insights (SNP35)
    Dec 3, 2024 – 11:52
  • #544: Genetic Variants and Response to Nutrients – Martin Kohlmeier, MD PhD
    Nov 26, 2024 – 52:56
  • #543: Eye Health & Nutrition – Prof. John Nolan
    Nov 19, 2024 – 50:46
  • #542: Nutrients for Cognitive Performance in Sports – Prof. Shawn Arent, PhD
    Nov 12, 2024 – 01:22:56
  • #541: Lean Mass Hyper Responders & the Lipid Energy Model: Do the Claims Stand Up to Scrutiny?
    Nov 5, 2024 – 01:29:38
  • Fasting for Health: What Do We Know? (SNP34)
    Oct 29, 2024 – 21:04
  • #540: How Can We Improve Body Image and Self-Esteem Without Physique Change? – Gabrielle Fundaro, PhD & Eric Trexler, PhD
    Oct 22, 2024 – 01:01:14
  • #539: How Does Carbohydrate Availability Impact Resistance Training? – Cliff Harvey, PhD & Eric Helms, PhD
    Oct 15, 2024 – 01:32:54
  • #538: Can Fish Oil Supplementation Increase Risk of Irregular Heart Rhythms?
    Oct 8, 2024 – 55:03
  • #537: Appetite Regulation, Metabolic Compensation and More – Stephan Guyenet, PhD
    Oct 1, 2024 – 01:04:07
  • Caffeine Metabolism and Individual Variability
    Sep 24, 2024 – 20:50
  • #536: Improving Sleep in Combat Sports Athletes – Ian Dunican, PhD
    Sep 17, 2024 – 01:15:57
  • #535: Is This Meta-analysis Good or Bad? – How to Critique Nutrition Studies
    Sep 10, 2024 – 01:19:01
  • #534: Are Plant-Based Meat Alternatives Healthy? – Matthew Nagra, ND
    Sep 3, 2024 – 46:24
  • Timing of Eating: Energetic Hypothesis (SNP32)
    Aug 27, 2024 – 11:06
  • #533: Making Sense of Omega-3 Supplement Trials – Prof. JoAnn Manson, MD, DrPH
    Aug 20, 2024 – 51:24
  • #532: Dietary Fat: Evidence vs. Misinformation – Alice Lichtenstein, DSc
    Aug 13, 2024 – 49:43
  • #531: Correlation, Causation & Cliché
    Aug 6, 2024 – 01:01:26
  • What is Regression to the Mean? (SNP31)
    Jul 30, 2024 – 08:32
  • #530: Evidence-based Strategies for Learning & Skill Acquisition – Scott Young
    Jul 23, 2024 – 55:00
  • #529: Addressing Popular Claims About Cholesterol, Dietary Fat and Heart Disease
    Jul 16, 2024 – 02:13:56
  • #528: Is Unprocessed Red Meat Problematic for Our Health?
    Jul 9, 2024 – 01:17:00
  • #527: How to Prevent & Treat Hypertension – Dr. Mohammed Alo, DO
    Jun 25, 2024 – 01:09:53
  • #526: Eating Rate, Food Texture & Satiation – Marlou Lasschuijt, PhD
    Jun 18, 2024 – 31:50
  • #525: Cholesterol-Lowering Medication – Dr. Paddy Barrett
    Jun 11, 2024 – 48:29
  • #524: Strength & Fitness Levels for Reducing Chronic Disease Risk & Promoting Health Ageing – Jordan Feigenbaum, MD
    Jun 4, 2024 – 01:26:02
  • SNP29: Athletes & Plant-Based Diets – Evidence & Application in Practice
    May 28, 2024 – 12:22
  • #523: How Trustworthy is the Food Frequency Questionnaire in Evaluating Dietary Intake? – Deirdre Tobias, ScD
    May 21, 2024 – 01:14:52
  • #522: Does Personalized Nutrition Outperform General Dietary Advice?
    May 14, 2024 – 01:19:55
  • #521: How Does Coffee Impact Our Health?
    May 7, 2024 – 01:13:35
Recent Reviews
  • CaliNate101
    Skibbidy Sigma Nutrition
    Some dweeb said Dr. Greger spreads propaganda. This nutrition podcast is for the low IQ.
  • Sailing through motherhood
    Best nutrition podcast
    As a PhD and Registered Dietitian I really appreciate the quality, thoroughness, and objectivity of Sigma Nutrition Radio. In a sea of sensationalism, clickbait and misinformation, SNR is a breath of fresh air. Danny and Alan are very thorough and do an excellent job of explaining studies and summarizing key points. They don’t push their personal agenda and have achieved a true evidence-based podcast. I can’t recommend this podcast enough.
  • christy f strouse
    Nutrition and psychology talk
    Great nutrition content
  • Jim_reviews
    Lost Trust
    I use to find the podcast interesting and informative but have since parted ways due to the high level of arrogance. Episode 400 is a great example of this. The hosts seemingly cherry picked controversial statements made by the “quacks” and then proceeded to mock them based on little supporting evidence. I had never heard of the quacks mentioned so I have no skin in the game, but I found the ad hominem attacks off putting and unhelpful in communicating why I should think of these people as quacks
  • Silian Rail
    Waste of time now
    Used to be better but now everything is either very shallow or hidden behind a paywall.
  • joelavelle
    A great learning experience
    Learn from people who care to get it right.
  • guardgf
    Good content but poor delivery
    This is one of the most evidenced informed podcast on nutrition. The thing I couldn’t get past is the delivery of the content by these guys. They come across as pretty pretentious and there’s an element of academic snobbery. I hope they can change the delivery of their message.
  • They’ve gone under
    Lots and lots of words, a little information.
    The purpose of this podcast is not to provide information. It’s just people chatting about nutrition. They obviously have a lot of information to share but they bury it under lots and lots of extra words.
  • Yropez
    Very informative
    Really informative. I learned a lot. Not dogmatic. I am based in the US and like that Sigma Nutrition is based across the pond, which provides a different perspective.
  • annemg
    Best podcast for the latest nutrition research.
    This is the only podcast to get the most and latest nutrition education for everyone. It does focus on athletic performance based nutrition but pertinent information for everyone interested in the evidence based nutrition practices. Danny is so knowledgeable and prepared when he interviews his guests. Often times the guests comment on his great questions and how knowledgeable he is on the topics being covered. Highly, highly recommend this podcast.
  • robinbbbbb
    All shows
    I really enjoy listening to the shows. I’ve logged in plenty of bike riding miles with Danny learning some really interesting things. Not being having a nutrition background I’m addicted to the next show! Thank you.
  • fitgirllife
    What waste of time 👎🏼
    Once upon a time they offered good information and now without just a tacky show of mockery, terrible
  • buttsngutsRD
    Thank you for the quack asylum!
    I appreciate that this podcast explores the middle ground rather than exploit the black and white thinking around nutrition science! I also appreciate the quack asylum. As a clinical dietitian working in Cleveland Ohio, I personally experience the harm of the dietary advice influenced by Dr. mark Hyman, Dr. Caldwell Esselstyn, and Dr. Michael Roizen. Nutrition is a fluid changing state based on many factors, and not a one size fits all approach. Keep up the good work!
  • rhath4
    Informative and Balanced
    This is a great podcast for balanced, evidence-based information on nutrition. Love this podcast!!
  • Ryan Burnham
    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.
  • IanA2011
    Politics
    Alan needs to keep his political and religious beliefs out of the podcast. Take your own advice and stay in your area of expertise
  • Matty mikey
    Shallow, incomplete exploration of important ethical topics
    When I first saw the title of episode #336 Ethics of Veganism and Omnivorism, I was very excited for some deep discussion, especially since the guest is a philosophy professor at Princeton, and because I do not think factory farming is morally right. However, after listening to the episode, I was left disappointed to hear that a supposedly highly educated professor of philosophy presents the same basic arguments made by many misinformed online diet zealots. At one point, he presents the idea that holistically raised animals that are killed in middle age somehow increases suffering. This insinuates that a longer lifespan decreases suffering. This is a false claim, since longer lifespans, for both humans and animals, do not equate to less suffering. Simply explore the long life span, yet increased prevalence of chronic disease of later life common in the US population. Why is it that Danny and his guest are quick to attack the industrial animal industry, yet not once do they mention the equally unsustainable, unhealthy model of monocrop agriculture industry. A second point the host and guest seem to completely avoid is the fact that organisms across the animal AND plant kingdoms are sentient, on a relative scale. True, that a ruminant animal has a much more complex nervous system then a cabbage leaf, but not once is this talked about. They don’t challenge the idea that plants can also “feel” and are therefore, capable of some degree of suffering. The argument never dives into the moral dilemma that life eats life. A true philosophical exploration into a fundamental conundrum such as this would have been worth discussing. The philosophy professor really shows his true bias when he cites one study that athletes don’t need protein from animal sources for adequate nutrition. While this is acceptable, this argument on nutrition does not belong in an ethical debate. Why is a philosophy professor even presenting nutritional scientific information? It’s almost as if he is trying to prop up the superficiality of his ethical arguments with a single, arbitrarily chosen study. There should have been more talk on how we define animal/plant suffering from a neurophysiological standpoint and it’s considerations in food choices (some marine bivalves have been shown to have less complex nervous systems than plants, possibly challenging the professor’s entire argument on which causes more suffering, eating plants or animals). Not only that, but does the killing and suffering of countless gophers, moles, rabbits, insects, and bugs as a cost of crop harvesting, outweigh the killing of a single beef cattle that can feed 2-3 people for a year? Lastly, the professor makes the claim that we should avoid eating animals because, as I prosperous society, we have the ability to eat a vegan diet, unlike many tribes around the world. This is an arrogant statement that seemingly borders on making the claim that the westernized world is superior to these “meat-eating” cultures. A thoughtful professor would address the fact that for the entire 1.3 million years as Homo sapiens, no anthropologist has found a purely vegan culture throughout history. Does this make modern day humans morally superior to those in the past? This type of thinking seems to be so pervasive in many important discussions today, but it especially runs unchecked in our university systems in the US. I propose a debate format next attempt. When we start out with a predetermined conclusion presented by an obviously biased viewpoint, it doesn’t help anyone. Debate is a critical way, if not the most critical way, we can advance important ideas like these. Thank you to Danny for attempting to cover this topic. We need more discourse in this arena.
  • Slumbertime101
    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.
  • FP
    Very high quality and incredibly educational
    By far the best podcast on nutrition and performance if you really care about learning and understanding nutrition and its impact on our body and health. Danny conducts high quality interviews with top experts in the field of nutrition. Content is based on real research, which I tremendously value. Sigma Nutrition dives into current and relevant nutritional topics. Highly recommended. Cutting edge content. Great host.
  • Mowgli-Marwan
    Fantastic, high quality and science based
    Danny is a first rate interviewer and has excellent guests. Many nutrition and fitness podcast claim to be “evidence based”, but Sigma truly walks the walk with a deep appreciation and understanding of science.
  • obacker19
    Entertaining, insightful and actionable! 🔥
    Whether you’re already deep into your journey of authentic health, or just getting started organizing your lifestyle around what matters most - this is a must-listen podcast for you! Danny does an incredible job leading conversations that cover a huge breadth of topics related to the ins and outs of navigating the ever-changing health and wellness landscape - with concepts rooted in evidence-based research. Highly recommend listening and subscribing!
  • ThereseMer
    Favorite podcast
    I absolutely enjoy listening to this podcast. Everyday while I drive, I have Sigma Nutrition on. I get to learn about different health, fitness and nutrition topics. Danny’s questions are always on point. I also appreciate how Danny responded to my questions whether it be email or Instagram. Very cool show, and I also like the music that the show starts with. I’m really glad I discovered this podcast thru Rebecca Nolan on Instagram, who’s also a wealth of knowledge! Thanks to the show, I am developing an interest in resistance training, and now have a goal of getting stronger! Kudos to you Danny!
  • shaogrady
    Learning continuum
    What I love most about the Sigma Nutrition podcast is that Danny's passion for nutrition and learning comes through in every episode. His guests are thought leaders in their fields and he guides listeners through complicated topics with relevant and well thought out questions. I just discovered the podcast, but am slowly making my way through all the previous episodes, while staying current on the new ones coming out. Thank you Danny!
  • Larry1261
    Exceptional podcast covering wide range of topics
    Danny Lennon is well-informed and can ask questions of his experts as a peer and from a layperson’s perspective—whatever it takes to tease out the information needed. His guests are top-notch, and he lets them answer the questions at length.
  • A jajajjw
    Extremely good Science based content
    Danny has time and time again astounded me with the quality of his content and the remarkable evidence based incite he displays on this podcast. I can’t say enough good things about it. I recommend it to everybody I know!
  • ChadTimmerman
    Always Worth My Time
    I never regret spending my limited learning time listening to Danny and his guests. Very few do it so well.
  • Luckstr
    Great even for a layperson
    I stumbled upon this podcast in an effort to find quality, evidenced based health information. I am not in the industrty but am constantaly amazed at the lack of real scientic data related to health and well being. Danny is clearly well read and knowledgeable, way beyond my understanding somtimes. I love his style of interviewing, and you can tell he really does his homework for each episode. Since I am not in the field, nor an elite body builder, I will sometimes skip epidoes that don't pertain to my interests, but that is the beauty of this podcast, there is a wide variety of guests and topics. Keep up the great work! And thank you.
  • xobod
    Fantastic resource
    I am sorry I just found SigmaNutrition - I'll certainly be binge-listening until I catch up. Danny Lennon is articulate and easy to listen to. Combine that with his knowledge and his fabulous interviewing skills the conversations with his guests are enlightening and entertaining. I'm a fan!
  • Mr Smelly Head
    Sheer quality
    Fantastic guests covering a range of topics. Objective, not pushing any particular viewpoint. Would never have guessed there would be so much content for nutrition but somehow they've kept this up for 300 episodes and it's still fresh !
  • I Was All Like
    Top content, top host
    I love this podcast. The topics are intriguing, the guests have great info & perspectives, and Danny is an excellent, excellent interviewer. His questions are so clear and insightful. He really understands what the listener would want to hear, and, of course, he’s super knowledgeable himself. While this podcast favors the scientific method, it’s not overbearing or righteous. It has a very inclusive feel - you get the sense that the mission is to bring all the resources for better health all around, not just to be correct for its own sake. Although, no worries, there’s plenty of substantiation for what’s presented, too. Why are you reading this review now and not picking out episodes to binge? Go!
  • Hoytdog
    Extremely useful tool and resource!
    I’ve been listening to this podcast for a long time and I am truly appreciative of the content that Danny presents and his format. If you’re a health and wellness practitioner take the time to listen. If you’re a client of this field, use it to stimulate better service from your practitioner. Wonderful stuff, thanks Danny!
  • tfriestedt
    One of the best out there!
    The wealth of information that Danny brings is invaluable to me as a sports and nutrition coach. I particularly like the holistic approach - the podcasts don't focus only on nutrition; they include all the valuable ancillary information and analysis.
  • Bad4p.r.
    Excellent!
    So glad I found this.
  • Dr. Grande Juevos
    Thank you!!
    Danny has created an incredible podcast where people can learn from top professionals (including himself). Thank you for putting out quality content and helping common people like myself understand the science of nutrition. I guarantee you don’t get the praise you deserve, and I’m sure it’s frustrating to put so much work into a science that people with larger followings disparage and misconstrue for their own financial gain. Just know that there are many people like me who genuinely appreciate the content that you put out!! You are helping tilt this twisted nutrition world into a better position, and that is an amazing accomplishment!
  • G.E.M. Training LLC
    Hands down, the BEST science-based podcast out there
    Danny, Where do I start? As an Owner of a Personal Training Company with my wife, we pride ourselves on staying up to date with the latest science, and data, and I can say your podcast is a HUGE reason we are informed. Please keep putting out great content. I love it and I know so many others out there do too!
  • wyiitt
    A fun resource
    You bring some really intelligent researchers into your podcasts and ask them great questions, keep it up and I appreciate your work!
  • bobincary
    Thanks
    I think Danny is great...knowledge, interviewing skills, the right mindset. Don’t care too much for the recent episodes on “elite” athletic performance. Maybe some of it translates to us normal people, but elite athletes are just a very tiny fraction of us.
  • Sheila RD
    Professional, current, objective.
    Always look forward to your Podcasts, Danny. Just listened to Louise Burke on Project Supernova: the Science of Fueling Elite Athletes. looking forward to the studies being published.
  • pauldesadeleer
    leading evidenced-based training and nutrition resources
    Sigma Nutrition is without a doubt one of the leading evidenced-based training and nutrition resources - exceptionally high quality and value add content. Danny continues to interview every major thought leader in the ecosystem and you will quickly learn how much he loves his work and the extreme level of personal responsibility he feels for sharing accurate information. This podcast has been instrumental in teaching me the fundamentals of healthy, intelligent and efficient bodybuilding. Well done! Keep up the phenomenal work.
  • ohleaveus
    Solid content
    One of the best podcasts to educate yourself on various topics of health and nutrition.
  • Ronbo5150
    My first
    Sigma was the first podcast I stumbled across a couple of years ago and it remains one of my favorites. I just today went back and listened to #157 and it speaks to me totally different from when it originally aired. Love all of the content and it helps me stay at the top of my game mentally and physically.
  • NeilyRD
    So many great episodes.
    Just finished listening to the menopause-estrogen podcast and ordered the book Estrogen Matters. Great episode! This is the primary population I work with and am anxious to read the science the authors studied. Keep up the great work.
  • Señorsevo
    Top Notch
    I learn a lot from listening to this podcast. Excellent evidence based show. I appreciate the diverse opinions presented. The host is an excellent interviewer and helps bring the best knowledge out of the guests. Two or three times per episode the host will offer a concise recap of the material discussed; though it’s very succinct, it really helps drive the topic home in an understandable way (my favorite part).
  • Kelseyjordan
    Fantastic Show
    Love the knowledge and evidence based research shared on this podcast. Definitely worth the listen!
  • Melfitness
    #268 Luke Leaman
    Great and much needed information however, his choice of language (profanity) took away from us getting what we need.
  • LS1320
    Great Show!
    I love that this show focuses on the science of nutrition and fitness. There are too many shows where the guests sound more like salespeople than experts in any field. Finally a show with integrity.
  • Andy Galpin
    Excellent
    Danny kills it, as always. I deeply needed show with very high quality nutrition information straight from the experts mouth's. Very few podcasts feature so many actual nutrition scientists, Danny and SN stand alone here. 5 stars and 3 cheers.
  • AlienAcension
    So Happy to Have Found This Podcast
    Such a great show. Danny is a great interviewer and the guests are outstanding. Be prepared to learn and be entertained at the same time. Keep up the amazing work Danny!!
  • MyrtleGater
    #262
    Listen to this one. It is.. incredible.
  • Jeff Ash - Hope Drives Me
    Must Listen For EVERY Nutrition Professional
    The Sigma podcast is by far the best nutrition-related podcast I’ve come across. Danny has an exceptional gift for taking nutrition concepts and clearly communicating them in practical ways. His guests are outstanding and an incredible wealth of high-quality evidence-based knowledge. If you are a nutrition or fitness professional at any level, you need to do yourself and your clients a favor and listen to every episode.
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