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PODCAST

Sigma Nutrition Radio

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.

health & fitness nutrition

All Episodes

12:26

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

Sigma Nutrition Radio ·

2024/01/23

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 the 80/20 of a healthy lifestyle, what would you tell them? [24:36] Is coconut oil good or bad? What about claims that it cures cancer, Alzheimer’s, etc.? [33:25] In the circumstance in which an individual has a normal ApoB yet an elevated

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44:41

#509: Helping Clients & Patients Overcome Nutrition...

Sigma Nutrition Radio ·

2024/01/16

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 the internet. And, unfortunately, much of it can sound very convincing and appealing to people who wish to improve their health. The result can be that they may end up ironically doing the opposite. At an individual level, dietitians and

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45:08

#508: Why Athletes Can Achieve High Performance...

Sigma Nutrition Radio ·

2024/01/09

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 initiate a coordinated response aimed at conserving energy. While commonly viewed as beneficial for weight loss and managing cardiometabolic conditions in the current obesity epidemic, chronic energy deficiency in

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42:02

#507: Does a Higher Portfolio Diet Score Reduce Heart...

Sigma Nutrition Radio ·

2024/01/02

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 health. While past intervention trials have demonstrated significant reductions in blood lipids, a critical aspect often overlooked is the long-term impact, both in terms of adherence and disease outcomes. A recent study aimed to address this by

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19:55

Listener Q&A: Homocysteine, MUFA, Healhty BMI, and...

Sigma Nutrition Radio ·

2023/12/26

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. Otherwise, you can hear a preview of the episode here. Full List of Questions: [01:50] How should one interpret the systematic reviews done by Hooper et al that report no association between modification or reduction of saturated fat

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49:37

#506 Sports Nutrition: Translating Research to...

Sigma Nutrition Radio ·

2023/12/19

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 of optimal athletic performance. The delicate balance between advancing research and ensuring practical applicability in the high-speed realm of sports nutrition is a perpetual struggle. Decision-making is difficult, especially when

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40:24

#505: Oslo Diet-Heart Study: Cholesterol-lowering...

Sigma Nutrition Radio ·

2023/12/12

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 disease. It aimed to investigate the impact of dietary interventions, specifically the reduction of saturated fat intake and an increase in polyunsaturated fat intake, on cardiovascular health. The Oslo Diet-Heart Study involved 412 men who had already

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42:57

#504: Vegetable Oil vs. Saturated Fat – Analysis of...

Sigma Nutrition Radio ·

2023/12/05

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 Study, began with the aim to investigate the effects of replacing dietary saturated fats with polyunsaturated fats, on the progression of atherosclerosis and cardiovascular outcomes. This was an eight-year clinical trial in 846 domiciled male veterans in the US. The diets

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43:04

#503: Lyon Diet Heart Study – Canola Oil,...

Sigma Nutrition Radio ·

2023/11/28

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 diet as a recognized and recommended dietary pattern for cardiovascular health. A clinical trial conducted in Lyon, France, the LDHS showed significant reduction in cardiac death could be achieved in secondary prevention patients using a dietary intervention

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40:52

#502: Sydney Diet-Heart Study – Is Linoleic Acid...

Sigma Nutrition Radio ·

2023/11/21

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 conducted in the 1960s and 1970s that aimed to examine the hypothesis that reducing saturated fat intake in the diet would lead to a reduced risk of heart disease. However, it really only gained attention after a more recent re-analysis by Ramsden et al., which

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10:38

Addressing Some Criticisms of Nutritional...

Sigma Nutrition Radio ·

2023/11/14

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 limitations are fair, often there are criticisms that are misguided and inaccurate. In this episode, Danny touches on a few examples of the misunderstandings of the field and how such claims can be addressed in a more accurate manner. Links:

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01:13:29

#501: Sex-based Training Recommendations:...

Sigma Nutrition Radio ·

2023/11/07

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 on the complex interplay between biology, physiology, and training adaptations. One of the fundamental areas of investigation pertains to sex disparities in strength, power, and hypertrophy. Historically, it’s been well-established

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01:19:26

#500 – The Big Unanswered Questions in Nutrition Science

Sigma Nutrition Radio ·

2023/10/31

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 General Nutrition Advice? 414: Will Machine Learning Overtake Traditional Nutrition Research Methods? 469: Chrononutrition – New Findings & Updated Views About This Episode: To mark the 500th episode of the podcast, Danny and Alan take a look at some of the

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01:02:05

#499: How Sensory Cues Impact Food Choice & Behavior...

Sigma Nutrition Radio ·

2023/10/24

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 liking for particular items. These sensory cues can be both inherent, such as the natural sweetness of fruit, and learned, as in the association between a particular aroma and a favorite dish. One crucial aspect of this research is delving into

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17:36

The PREDIMED Trial – Controversy, Criticisms, &...

Sigma Nutrition Radio ·

2023/10/17

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 due to the rarity in nutrition of having large RCTs with hard endpoints. In addition, it had results of a large magnitude; showing a 30% reduction in cardiovascular events. But the study did face criticisms and controversies over methodological issues,

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35:39

#498: The PROPEL Trial & Weight Loss Interventions in...

Sigma Nutrition Radio ·

2023/10/10

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 loss trial, specifically tailored to address the pressing health concerns of an underserved population in Louisiana, where obesity rates have reached alarming levels. The core of the intervention comprises a pragmatic, high-intensity

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01:08:14

#497: Are Food Frequency Questionnaires Reliable?

Sigma Nutrition Radio ·

2023/10/03

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 patterns among study participants. However, debates surrounding the reliability of FFQs have persisted both inside and outside the academic community. These debates primarily revolve around issues related to measurement error, recall

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17:48

SNP21: Sick Individuals and Sick Populations

Sigma Nutrition Radio ·

2023/09/26

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 Rose, can be considered as seminal and important because it brilliantly raised the concept of the “prevention paradox” and challenged traditional approaches to public health and preventive medicine. The paper’s insights

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01:01:14

#496: ATBC Cancer Prevention Study – Crucial Lessons

Sigma Nutrition Radio ·

2023/09/19

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 the domain of epidemiology and cancer prevention. Conducted in Finland, the study aimed to examine the potential protective effects of alpha-tocopherol (vitamin E) and beta-carotene supplementation against the occurrence of various cancer

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35:27

#495: Circadian Clocks in Muscle & Exercise as a Time...

Sigma Nutrition Radio ·

2023/09/12

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 the sleep-wake cycle. However, recent advances have unveiled a broader role for circadian clocks across various tissues, including skeletal muscle. Within this context, the investigation of circadian clocks within the skeletal muscle

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