
The TriDoc Podcast, triathlon and health in one place
Jeff Sankoff is the TriDoc, a physician who will do the research so you don't have to in order to understand if any of those things marketed to endurance athletes can deliver close to what they promise. Before you put anything in or on your body, understand what the science says by listening to an expert who has done the work for you.
Latest episodes

Apr 5, 2024 • 1h
Ep 142: MCT oil/Strides for Strength
In this episode:Medium chain triglycerides (MCT) are advertised as a kind of booster fuel that can provide rapidly available and abundant energy during long training sessions or races. A fair amount of science has been done looking at whether or not this is true and on the Medical Mailbag we bring you the answers. Erin Rosen and Michaela Robertson are nurses, friends, runners and running coaches who together founded Strides for Strength a group that helps athletes break through plateaus on the run and beyond-- from everyday runs to chasing finish lines to hosting to retreats to never ending conversations about running on their podcast-- they are there for it all and on this episode they tell me all about it.Segments:[09:21]- Medical Mailbag: MCT[32:08]- Interview: Erin Rosen & Michaela RobertsonLinks@sfsrunners on Instagram Michaela's Website Stephanie vanBebber Coaching

Mar 22, 2024 • 58min
Ep 141: Alcohol and sleep/Nick Klingensmith
In this episode:Does a nightcap interfere with sleep and recovery? We know that alcohol can be deleterious to training but what are its impacts on sleep? Plus, Nick Klingensmith found redemption for hard living through endurance sport and now tells anyone who will listen that they can do the same.Segments:[09:23]- Medical Mailbag: Alcohol and sleep[t29:39]- Interview: Nick Klingensmith LinksNick's Facebook page @stridemotivation on Instagram @stridemotivatio on X Nick's Website Nick on YouTube

Mar 8, 2024 • 1h 8min
Ep 140: Plasmaide/Marilyn Chychota
In this episode:Extract of the bark of the maritime pine tree is thought to provide a host of potential benefits to health measures including some that extend to endurance sport. A new product aims to bring this substance to triathletes and is being backed by none other than the Norwegian duo of Iden and Blumenfeldt through their Santara Tech initiative. But does Plasmaide deliver on any of the lofty promises made on its very slick website? We take a look at the science on the Medical Mailbag. Then, a conversation with coach Marilyn Chychota who comes to triathlon from a background of equestrian show jumping. A circuitous route to be sure but one that has led her to have a fascinating outlook on life and made her successful in all of the ventures that she has pursued.Segments:[07:23]- Medical Mailbag: Plasmaide[30:21]- Interview: Marilyn ChychotaLinksConquer the Course IM CDA 70.3 WebinarMarilyn's Website Marilyn's Facebook page Marilyn on YouTube

Feb 23, 2024 • 1h 8min
Ep 139: Training after illness/Cristina M Ramirez
In this episode:When is it ok to train through illness and how should you adapt your training when recovering from a malady? We look at several common ailments and discuss if it is safe to train through, whether you should rest up instead and how you should return to training afterwards. Cristina M Ramirez is a three time Ironman and best selling author. We talk about how she teaches growth mindset to kids using running as a tool and about her co-founding of a foundation that pairs up able bodied and paraathletes for competing in endurance events among her many other remarkable exploits.Segments:[06:58]- Medical Mailbag: When is it safe to train through illness?[38:22]- Interview: Cristina Ramirez LinksCristina's Facebook page @empoweredbydiscomfort on Instagram Cristina's Website IM 70.3 Coeur d'Alene Webinar sign up link

Feb 9, 2024 • 1h 11min
Ep. 138: Carbohydrate periodization/Dr. Daya Grant
In this episode:Cycling carbohydrates so that you train with low glycogen levels was once thought to be a viable strategy for getting real benefits in endurance performance. This strategy has come in to question with more recent scientific research. On this episode's medical mailbag we take a look and see what the latest data suggests about this concept. Plus, neuroscientist Dr. Daya Grant stops by to talk about the flow and clutch states; what they are and how you can get there in order to make the most of your training and racing.Segments:[14:47]- Medical Mailbag: Carbohydrate Periodization[38:18]- Interview: Daya Grant Links@dr.dayagrant on Instagram Daya's Website

Jan 26, 2024 • 1h 10min
Ep. 137: Magnesium supplementation/Mark Evans
Former submariner and age group triathlete, Mark Evans, shares his inspiring story of overcoming severe injuries. The hosts also discuss the claims and science behind magnesium supplementation for triathletes. The guest recounts their challenges of racing in cold weather and their successful transition from the swim to the bike leg. They reflect on their journey of recovery and the emotional experience of returning to racing after a serious accident.

Jan 12, 2024 • 53min
Ep 136: Rebroadcast-The Nutrition Episode
In this episode:Often referred to as the fourth discipline in triathlon, nutrition remains a source of confusion for many athletes. I have discussed nutrition across many episodes with many guests but I felt like it was time to bring together a couple of experts and dedicate an entire episode to this weighty topic. Alex Larson and Celine Evans are both multisport athletes with nutrition coaching businesses and a wealth of knowledge and expertise to share on this matter. Through our conversation they will help us understand why it is so important to fuel properly when we train race and recover, how we can do so more thoughtfully and why a nutrition coach can be such a valuable addition to your team if you choose to go that route.LinksCeline Evans:Nutrition 360LifeSport

Dec 29, 2023 • 56min
Ep. 135: Long Run Coffee/Dave Lowry-IM on a BMX!
In this episode:Long Run Coffee claims to be coffee with a purpose-to help start your day and your run off right by adding a dose of electrolytes to everyone's favorite morning beverage. There are a host of other claims and we wanted to know if any of them are backed up by science so we take a look on this episode's Medical Mailbag. Dave Lowry is an age group triathlete from Perth, Australia who recently participated in the Busselton Ironman using a modified BMX bike. While this sounds a little out there, Dave explains why he did this and tells me how his day went and it makes for a great story to round out 2023.Segments:[10:13]- Medical Mailbag: Long Run Coffee[30:26]- Interview: Dave Lowry LinksDave's Facebook page @djlowry1976 on Instagram

Dec 15, 2023 • 1h 1min
Ep 134: Holiday Hacks/Jason Curtis on strength training for multisport
In this episode:The holidays always pose significant challenges for endurance athletes and on the Medical Mailbag this episode Coach Juliet and I share our hacks for doing your best to stick to your plan for multisport success while still enjoying all of the best things that the holidays offer. Plus, an interview with strength and conditioning coach Jason Curtis. Jason has an incredibly active and successful business developing programs for athletes in all kinds of sport and we discuss the importance of strength training not only for preventing injury but also for getting faster in triathlon.Segments:[05:53]- Medical Mailbag: Holiday Hacks[27:35]- Interview: Jason CurtisLinks@strengthandconditioningcourse on Instagram Jason's Website

Dec 1, 2023 • 1h 8min
Ep 133: NAD+ supplementation/Gustavo Cadena, inventor of the Omius
In this episode:NAD+ is an important co-factor in many biochemical processes in our cells including the metabolism of glucose. There is research that suggests that as we age we may develop a deficiency of it and that supplementation might help with performance. We review the science. Gustavo Cadena Schlam is an engineer and the inventor of the Omius headband cooling device. We discuss how it works and what led to its development.Segments:[08:27]- Medical Mailbag: NAD+[33:43]- Interview: Gustavo Cadena Schlam Links@omiustech on Instagram Gustavo's Website