Take It With a Grain of Sugar: The Metabolic Health Podcast

In this episode of Take It With a Grain of Sugar, host Loïck Fenaux sits down with metabolic health scientist Erin Glynn, PhD, to unpack one of the biggest drivers of metabolic health: insulin resistance. Together, they explain how insulin works throughout the body, why cells gradually become less responsive to it, and how this creates a self-reinforcing cycle that can affect energy, body composition, and long-term health. Erin Glynn is an advisor to Phynova Group LTD. In this episode, you'll learn:-What insulin resistance actually is—and why it develops gradually-How insulin affects muscle, liver, and fat tissue differently-Why chronically high insulin and insulin resistance reinforce one another-The role of genetics, nutrition, physical activity, and body fat distribution-How inflammation, oxidative stress, and ectopic fat contribute to metabolic dysfunction-Why healthy insulin sensitivity can be supported through everyday lifestyle habitsWhether you're interested in blood sugar, weight management, longevity, or simply understanding how your metabolism works, this episode provides an evidence-based look at one of the most important concepts in metabolic health.🎧 Subscribe for more conversations on the science of metabolic health, nutrition, and glucose management.This podcast is for informational and educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider regarding medical decisions.

In this episode, Loïck Fenaux is joined by metabolic health expert Erin L. Glynn, PhD., to explore how CGMs work, what they measure, and how they can provide personalized insights into your body's response to food, sleep, exercise, stress, and illness. They also discuss the limitations of CGMs, why glucose spikes aren't always a bad thing, and how to use these devices to identify meaningful patterns rather than obsessing over individual readings.

Outline:

• How continuous glucose monitors work and what they're actually measuring
• Why CGMs don't measure blood glucose directly and why that's okay
• What metrics like Time in Range and Glucose Management Indicator (GMI) mean
• Why glucose responses are highly personal and influenced by sleep, stress, illness, and activity
• How to use CGMs to identify patterns and make informed lifestyle choices

Erin Glynn is an advisor to Phynova Group LTD. 

This podcast is for informational and educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider regarding medical decisions.

In this episode, Loïck Fenaux is joined by Metabolic Health Expert, Erin Glynn, PhD., to explore the science of insulin and its central role in regulating blood sugar and energy throughout the body. They discuss:

-What insulin is and how it's produced

-How insulin regulates blood sugar and energy storage

-Why blood sugar alone doesn't tell the full story

-The role of GLP-1 and other incretin hormones in insulin secretion

-The cephalic effect and how your brain prepares your body for food before you even take a bite

-How nutrition, movement, and sleep influence insulin.

This conversation unpacks one of the body's most important hormones and provides a deeper understanding of the biology that supports metabolic health.

Erin Glynn is an advisor to Phynova Group LTD.

This podcast is for informational and educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider regarding medical decisions.

Why do two people eating the exact same meal experience completely different blood sugar responses?

In this first episode of Take it with a grain of sugar, host Loïck Fenaux is joined by Erin Glynn, PhD, a metabolic health specialist, to explore the science behind individual differences in metabolic health. Together, they unpack how factors like age, sex, and ethnicity shape the way our bodies regulate glucose and why a one size fits all approach to nutrition often falls short.

At its core, this episode challenges the idea that metabolic health is universal. Instead, it makes the case for a more personalized approach, one that takes into account the unique biology and context of each individual.

The conversation begins with a look at how blood sugar is regulated across the lifespan. From high insulin sensitivity in childhood to the metabolic shifts that occur during puberty and adulthood, the episode highlights how aging influences glucose control. Dr. Glynn explains the role of visceral fat, the importance of maintaining muscle mass, and how changes in physical activity and body composition can impact metabolic health over time. The discussion also touches on the growing role of the gut microbiome and how it may influence metabolism as we age.

The episode then explores key differences between men and women. Hormones such as estrogen and testosterone play a major role in shaping metabolic responses, influencing everything from fat distribution to insulin sensitivity. The discussion covers important life stages such as pregnancy and menopause, as well as conditions like gestational diabetes and PCOS, helping to explain why metabolic risk can vary significantly between sexes.

The conversation also expands to population level differences, examining how metabolic risk varies across ethnic groups. Dr. Glynn explains how both genetic and environmental factors contribute to these differences, and why commonly used metrics like BMI do not always tell the full story. The episode highlights how certain populations may experience higher metabolic risk at lower body weights and younger ages.

Importantly, this episode does not just focus on differences. It also offers practical insights. Listeners will learn simple, evidence based habits that can support healthier blood sugar responses after meals, including the role of diet, movement, and other lifestyle strategies. The discussion reinforces that while some factors are outside our control, many aspects of metabolic health can be improved through informed choices.

If you take away one message, it is this: metabolic health is not one size fits all, and understanding your own body is the first step toward improving it.

Erin Glynn is an advisor to Phynova Group LTD.

This podcast is for informational and educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider regarding medical decisions.