
Fueling Endurance - Nutrition for Runners, Cyclists & Triathletes Episode 100 - Can I change my gut microbiome, and will it help me as an athlete?
The gut microbiome is a term that's thrown around a lot. But what does it actually mean? Is there a particular gut microbiome that's more common in athletes? And should athletes be trying to shape their microbiome to benefit their health or performance?
Timestamps:
02:10 - What is the gut microbiome?
13:50 - What are short chain fatty acids, and what's their significance?
18:00 - How do you determine someone's microbiome?
23:59 - Species vs strain of microbiota
30:08 - Is there an "athletic microbiome" that's common to most athletes?
32:00 - Effect of pre/pro/syn/postbiotics on performance
42:38 - Effect of pre/pro/syn/postbiotics on illness prevention and treatment
45:44 - Effect of pre/pro/syn/postbiotics on gut issues during exercise
52:12 - Practical advice for using pre/pro/syn/postbiotics
55:30 - Bonus round and Monash University study
59:14 - Summary and wrap up
Read the research paper (open access):
Gaskell S et al. Gut microbiota and exercise: A systematic review of interventions and evidence limitations. Int J Sports Med. 2025: doi: https://doi.org/10.1055/a-2705-2210
Current study recruiting at Monash University (looking for distance runners aged 18-55): https://www.monash.edu/medicine/scs/nutrition/research/volunteer#Pre-Exercise
Fueling Endurance eBook | T -12 Race Nutrition Course | Practitioner Resources
The Fueling Endurance eBook contains answers to 49 of the most common nutrition questions that runners, cyclists and triathletes ask, and contains insights, tips, and quotes from experts and athletes. The T -12 self-guided course will help prepare you for your next event, with online tools, guides, information and instructions to take you through the 12 weeks leading up to race day. And the Fueling Endurance Practitioner Membership provides access to online tools and calculators I use all the time when working with endurance and ultraendurance athletes. This includes working out the carbohydrate needs for runners (road and trail) and cyclists for different types of training sessions. For more into on each of these, check out fuelingendurance.com.
