#545: Carbohydrate Metabolism, Performance & Metabolic Health – Prof. Javier Gonzalez
Sigma Nutrition Radio
Danny Lennon
4.8 • 633 Ratings
🗓️ 10 December 2024
⏱️ 57 minutes
🧾️ Download transcript
Summary
Carbohydrate metabolism and metabolic health have become central themes in the science of nutrition, with questions about fuel utilization, the impact of different diets, and the potential of ketone supplements driving new research.
As researchers continue to uncover how the body adapts to various energy sources, there are emerging insights into how glucose tolerance, glycogen utilization, and even ketogenic diets influence not only physical performance but also long-term health outcomes.
Understanding how the body responds to different energy sources, particularly in relation to carbohydrate restriction, brings crucial context to popular nutrition strategies and the potential benefits—or trade-offs—they offer.
In this episode, Professor Javier Gonzalez joins to discuss these topics in detail, exploring the latest findings on how dietary choices affect athletic performance, chronic disease risk, and the mechanisms underlying metabolic adaptations.
You will gain insight into topics like reactive hypoglycemia, carbohydrate oxidation, and why individualized responses to diet matter.
Timestamps
- [01:36] Understanding carbohydrate metabolism
- [06:33] The role of glucose in metabolic health
- [09:59] Exercise and glucose dynamics
- [17:35] Carbohydrate intake and athletic performance
- [25:03] Diet impact on exercise and metabolism
- [30:44] Pre-workout carbohydrates and reactive hypoglycemia
- [35:31] Recent study: Ketogenic diet vs. sugar restriction
- [41:09] Future research directions in metabolic health
- [45:07] Ketone esters and their role in exercise performance
- [49:22] Carbohydrate metabolism and common misconceptions
Links
- Go to episode page
- Join the Sigma email newsletter for free
- Subscribe to Sigma Nutrition Premium
- Enroll in the next cohort of our Applied Nutrition Literacy course
- Paper: Ketogenic diet but not free-sugar restriction alters glucose tolerance, lipid metabolism, peripheral tissue phenotype, and gut microbiome: RCT
Transcript
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| 0:00.0 | Hello and welcome to Sigma Nutrition Radio. This is episode 545 of the podcast. My name is Danny Lennon and you are very welcome to the show. |
| 0:24.9 | Today we're going to be talking all about carbohydrate metabolism, glucose kinetics, |
| 0:30.0 | metabolic health and athletic performance, a whole host of topics that are interrelated and very |
| 0:35.3 | interesting and coming from our guest today who really |
| 0:39.3 | has true expertise in this particular area. |
| 0:41.8 | I'm delighted to be joined by Professor Javier Gonzalez, who is a distinguished academic |
| 0:47.3 | in the Department for Health at the University of Bath, where he holds the position of professor |
| 0:52.5 | of nutrition and metabolism. His research focuses |
| 0:56.0 | on a whole host of topics typically related to human fuel utilization. So looking how the body |
| 1:03.1 | derives energy from diet, how it expends that energy during exercise, and then stores it when |
| 1:08.5 | it indeed exceeds nutrient requirements. So a lot of this relates |
| 1:12.8 | to carbohydrate metabolism, fat metabolism, both before, as well as during exercise, and then also |
| 1:20.7 | in some of these states after exercise or after eating in a postpranial state as well. |
| 1:26.7 | And so he has expertise in a whole range of |
| 1:29.6 | research methods that relate to this type of work, as well as an understanding of the literature |
| 1:35.5 | in this area. And so I wanted to talk about a range of topics that are really interesting, both |
| 1:40.5 | on the athletic performance side and the importance there and what we know, but also |
| 1:46.1 | how we can take some of that and apply that to areas like general metabolic health. |
| 1:51.1 | And there's also ideas that maybe are not that intuitive when it comes to blood glucose concentrations |
| 1:59.3 | as an example and how they differ in response to |
| 2:03.5 | different meals or respond to exercise or to different conditions. So we're going to be talking |
| 2:09.2 | about all of that today and I think you are going to enjoy it. If you want to get additional |
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