Sigma Nutrition Radio

Mar 03 2025 565 ep. 55 mins 11.7k

Sigma Nutrition Radio Podcast artwork

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

Copy RSS

Subscribe on Podcast Addict

#555: What Should the Dietary Guidelines Say? – Prof. Christopher Gardner

Mar 03 2025 59 mins

Every five years, the U.S. Dietary Guidelines are updated based on the latest scientific evidence to help shape national nutrition recommendations. A panel of experts was assembled to review the existing research, evaluate new findings, and provide recommendations that will inform the next edition of the guidelines. One of the committee members involved in this process is Professor

#554: Crucial Ideas for Understanding Nutrition Science

Feb 24 2025 73 mins

Understanding the complexities of diet-disease relationships requires a nuanced approach to nutritional science. Unlike other scientific disciplines, nutrition research often grapples with the inherent challenges of studying dietary patterns and nutrient intakes in free-living populations over long periods. The cumulative effects of dietary exposures, combined with the necessity to

#553: Healthy Habits for Fertility and Reproductive Health – Marjorie Nolan Cohn, RD

Feb 17 2025 40 mins

This episode focuses on the intersection of nutrition, lifestyle, and women’s health, with a particular emphasis on managing complex conditions such as PCOS, endometriosis, and premenstrual dysphoric disorder (PMDD). Registered dietitian Marjorie Nolan Cohn shares insights from over two decades of clinical practice, highlighting the importance of addressing foundational health be

#552: Diet & Sleep Interactions – Marie-Pierre St. Onge, PhD

Feb 10 2025 41 mins

Over the past couple of decades, renowned researcher Dr. Marie-Pierre St-Onge has uncovered fascinating links between how we sleep and what we eat, revealing how these two lifestyle factors influence energy balance, cardiovascular health, and metabolic function. In this episode we’ll explore Dr. St-Onge’s findings on sleep regularity and its association with reduced mortality r

Multivitamin Nihilism: Is it Actually Worthless to Supplement? (SNP37)

Feb 03 2025 17 mins

Multivitamin and multimineral supplements have long been a topic of both scientific inquiry and public debate. While they are often marketed as convenient solutions for achieving nutritional adequacy, their true value remains contentious. Are these supplements essential insurance policies against nutrient deficiencies, or are they merely expensive placebos? Importantly, how should

#551: How to Shift from Short-term Dieting to Sustainable Lifestyle Changes – Laurin Conlin

Jan 27 2025 62 mins

While the fitness industry often emphasizes short-term goals such as rapid weight loss or aesthetic improvements, a growing body of evidence highlights the importance of fostering long-term habits for health and wellbeing. Understanding how psychological frameworks intersect with physical health behaviors is key to empowering clients and overcoming the challenges posed by rigid die

#550: Eating Disorder Risk in Sport, Wellness & Fitness – Jillian Lampert, PhD, RD

Jan 20 2025 53 mins

Eating disorders and disordered eating behaviors represent complex, multifaceted challenges that affect individuals across all demographics, yet they remain widely misunderstood and under-recognized. These issues often extend beyond the stereotypical images associated with eating disorders, touching everything from rigid “clean eating” obsessions to the normalized extremes of d

#549: Are We Doomed? Trust, Misinformation, and the Future of Health & Fitness Science – Joe Klemczewski, PhD

Jan 14 2025 79 mins

In a world flooded with information, discerning fact from fiction in fitness and nutrition has never been more challenging—or more important. The rise of social media and democratized science has given everyone a platform, but not all voices are equal. How do we navigate a landscape where influencers with massive followings wield the same credibility as seasoned experts? Why do p

IGF-1 and Diet: Cause For Concern? (SNP36)

Jan 07 2025 21 mins

IGF-1 (Insulin-Like Growth Factor 1) has emerged as a hot topic in health and nutrition discussions, often linked to longevity, cancer risk, and metabolic health. On one hand, IGF-1 is essential for growth, repair, and metabolic regulation; on the other, it is sometimes associated with disease processes, including cancer and cognitive decline. For those intrigued by the intersectio

#548: Disordered Eating and Body Image in the Fitness Industry – Michelle Carroll

Dec 31 2024 48 mins

Fitness pursuits can bring various benefits. However, within the modern fitness industry there is a complex interplay of body image ideals, societal pressures, and disordered eating behaviors. Research continues to illuminate how certain practices and messaging within the industry—such as the overvaluation of leanness or the impact of social media personas—can fuel body dissati