A woman with blonde hair, wearing a blue tank top, is slicing strawberries on a wooden cutting board in a modern kitchen. In the background, there are glass jars with white ingredients and a navy blue cabinet with glass doors showcasing white dishes.
Dr Jules Strauss

Evidence-based nutrition for endurance performance & female health

Hi, I’m Dr Jules Strauss. I provide specialist performance nutrition support for endurance athletes of all ages, corporate organisations, and brands. I’m a registered nutritionist (RNutr) with a PhD, and over two decades of experience spanning academia, elite sport, and clinical practice.

That breadth lets me bring evidence-based, credible nutrition guidance to a wide range of people, athletes, coaches, organisations, and the media, with the aim of making the science practical and usable for everyone I work with.

REGISTERED NUTRITIONIST (AfN)


PhD EXERCISE PHYSIOLOGY & NUTRITION


60+ PEER-REVIEWED PUBLICATIONS


15+ YEARS IN NUTRITION SUPPORT, RESEARCH AND EDUCATION

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A bit about me

From the lab to the finish line

I'm a registered nutritionist with a PhD in exercise physiology and nutrition. I work with endurance athletes to build fuelling strategies grounded in research and tailored to real training, real bodies, and real life.

Work with me

Six ways we can work together

1-2-1 Nutrition Coaching

Personalised nutrition support and guidance for runners, cyclists, and triathletes at any stage of training.


Struggling to fuel training around busy work, training, and life commitments? Not sure how best to prepare for a race or event? Finding recovery hard to get right, or feeling tired all the time? Looking for support recovering from REDs? The guidance will translate the nutrition science into an actionable plan that is easy to follow. The aim is to fuel smarter for quality training, confident racing, and better energy and recovery.

Enquire →

Perimenopause & Midlife Athlete Nutrition

Specialist nutrition support for female endurance athletes navigating perimenopause and midlife.


Have you noticed that what used to work doesn't always work anymore? Maybe training feels harder to recover from or fuelling strategies that were reliable for years stop working, and your body doesn't always respond the way it used to. Most generic sports nutrition advice doesn't account for the nuance of this phase of life. Grounded in the latest research on female physiology you’ll have personalised and practical strategies that fit your life.

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Corporate Talks & Public Speaking

Evidence-based nutrition talks that bring a performance mindset into the workplace.


The same principles that help athletes train, recover, and perform well apply just as much to a workforce. Energy, focus, and resilience aren't just important to athletes, they're important in the workplace too. Topics range from nutrition for energy and performance to nutrition for menopause and female health, managing jet lag and eating well on the road for frequent travellers, tailored to the audience and delivered for conferences, workplaces, and events. Available in person or online.

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Group Education

Practical nutrition workshops for clubs, teams, coaches and organisations, in person or online.


Sessions translate the science into clear strategies athletes can use, covering race-day fuelling, hydration, recovery, and more depending on the group's needs. Get in touch to discuss topics and format.

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Youth Athlete & Schools Nutrition Education

Age-appropriate nutrition education for young athletes, delivered in schools or sports clubs.


Parents and coaches often share the same worries, whether a young athlete is fuelling enough to support training and growth, signs of disordered eating or body image concerns, and how to support performance without falling into anything restrictive or unhealthy. Covers the basics that matter most at this stage: energy needs, hydration, recovery, and building a healthy relationship with food and sport. Workshops can be delivered for young athletes alone, for parents, or as a joint parent and athlete session, alongside practical content like meal planning and shopping. Available as a single workshop or a structured series.

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Media Requests

Evidence-based expert commentary and content for press, podcasts, and brands.


Available for articles, panels, podcasts, product consultation, and on-camera commentary on sports nutrition, endurance performance, and female athlete health. Quotable, accurate, and grounded in the latest research, with a practitioner's perspective from working directly with athletes. Get in touch to discuss the brief and turnaround.

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What athletes & partners say

Jules provided resources that were beautifully written with relatable examples and clear, practical guidance that is easy to follow.

Project Power by Krissy Cela

Massive thanks for all your support in the challenge. Without your nutrition guidance, it would have been a very different story. It was simple to follow and kept Greg fuelled all week

Comic Relief

I felt great all week – my energy never dropped.

Greg James

I started with working with Jules due to pretty persistent stomach issues, which I was aware had potential to result in a DNF finish at my first IRONMAN. With some simple changes, I had a really positive first full-distance race; my fuelling plan felt simple and practical, and most importantly, I actually enjoyed the race rather than constantly worrying about feeling unwell.

It’s also given me a bit of a nudge to stop what was probably frequent under-fuelling of a lot of my training sessions, and changing that has made a difference in my last big training block. 

Recipes were all super tasty and easy to prepare when busy which isn’t an easy combination to find - so overall a massive thank you!”


Triathlete – 1-2-1 Support

Brands & teams I’ve worked with

Ballard Hope Education logo featuring a fleur-de-lis symbol and text.
Logo of ENDURANCE SPORTS COACHING INSTITUTE with the letters ESC and a red slash.
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Precision Coaching logo with circular target design and bold text
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The words "You" and "U" written in red, with the phrase "you" in black above them, on a black background.
Logo for FUELHQ with teal letters for 'HQ' and black for 'fuel/'.
Close-up of the Hyundai logo with the word 'Hyundai' beneath it.
Red square with white text that reads 'Comic Relief'
Logo with a stack of colored books on the left and green text reading 'Library Services'
A teal background with the words "TREACLE VIDEO" in bold black letters, where "TREACLE" is slightly tilted and the word "VIDEO" is reflected upside down.
Bold black text reading "BROWNEE FITNESS" on a white background.
Logo for Physio Fitness featuring a stylized figure and text
Triathlon England logo featuring a stylized red swimmer, cyclist, and runner above the text 'Triathlon England' in red.
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