S4E1: Ultra-Marathon Nutrition: Fueling Training, Recovery & Competition w/ Dr. Justin Roberts PhD

Season 4, Episode 1

Dr. Bubbs interviews Dr. Justin Roberts, PhD, to discuss his recent work contributing to the JISSN position stand on nutritional considerations for single-stage ultra-marathon training and racing. In this episode, Justin highlights the multiple factors influencing the daily caloric and specific protein requirements for ultra-marathoners.


SUMMARY OF EPISODE

2:00 – Justin’s background in nutrition and ultra-marathon

5:00 – Factors influencing your daily caloric needs as ultra-runner

10:15 – Protein intake and recovery

14:15 – Potential benefits of training with low-carb availability

18:30 – Race Day nutrition and lead-up to competition

22:30 – The role of tryptophan in central fatigue and potential effects of BCAAs

30:00 – The high degree of inter-individual variability in fueling strategies during ultra-marathons

33:00 – Sweat lose during ultra-marathons & what the research says around electrolytes

36:30 – Supplements for race day during ultra-marathons

39:00 – Justin’s experience competing in the ultra-marathon

ABOUT JUSTIN ROBERTS, PHD

Justin is a Principal Lecturer in Sport and Exercise Sciences at Anglia Ruskin University in Cambridge where he specialises in applied nutrition, with a central aim of exploring dietary and nutrient/supplementation strategies to support exercise training and recovery, cardio-metabolic health and sports performance. His current research interests involve the use of ‘calorie restriction mimetic’ nutrients on physiological mechanisms associated with fat oxidation and weight management.

With over 20 years’ experience in sport and exercise physiology and nutrition, Justin has worked at various institutions including the British Olympic Medical Centre (London), Brunel University (where he completed his PhD), Victoria University (Melbourne) and the University of Hertfordshire.

Follow Justin on Twitter


RESEARCH LINKS:

International Society of Sports Nutrition Position Stand: nutritional considerations for single-stage ultra-marathon training and racing.

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