Health & Performance Nutrition for Driven Professionals

Is Your Body Keeping Pace With Your Performance Demands?

Personalised, science-led nutrition for driven professionals balancing work, travel, responsibility and real life.

Build the stamina to perform at work. Think clearly under pressure. Reduce fatigue, concentration dips and energy crashes. Support your health and long-term vitality.

BRITISH EQUESTRIAN FEDERATION

Two Ways to Build Your Performance

Choose the depth of personalised support that fits your goals, lifestyle, health needs and professional demands.

1:1 Personal Performance Nutrition Coaching.

Individual assessment, strategy, coaching and accountability for driven professionals seeking the highest level of personalised support.

Is the Way You Work Starting to Cost You the Way You Feel?

You are used to performing under pressure. Deadlines get met. Meetings happen. The business keeps moving. People rely on you.

But behind the scenes, your body may be telling a different story.

The afternoon energy dips are more predictable. Concentration and clarity feel harder to hold. Sleep feels less restorative. Travel disrupts routine. Meals become rushed, delayed or whatever is available.

Evening eating becomes reactive rather than planned.

Because nothing has completely broken yet, it is easy to keep going.

You might be reading books, trying apps, tracking data, buying supplements or following the latest trend, yet still not feeling the vitality you expected.

This is rarely a lack of effort. Most driven professionals are not short of discipline, ambition or hard work. Often, the advice was never designed around you.

The question is: what does your body need for a demanding career and busy lifestyle?

What Could Change If Your Nutrition Finally Worked With You?

Imagine waking up feeling more refreshed, with steadier energy before the demands of the day begin.

Moving through meetings, decisions, travel and deadlines with clearer thinking, consistent energy and less reliance on quick fixes.

Navigating busy, unpredictable days with more control. Your food, hydration, sleep and recovery are no longer afterthoughts. They are part of how you perform, lead and live.

Feeling more confident in your body, your health and its future.

It is not about trying to work harder. You are probably already doing that.

It is about making the work you already do deliver more effectively, so you have the energy, health, focus and time for business and life outside it.

Why Health & Performance Nutrition Matters?

01

Your Strategy Must Work With Your Circadian Rhythm

A demanding career can push meals, caffeine, alcohol and sleep later into the day. Your circadian rhythm influences appetite, digestion, blood glucose, energy and sleep. Late eating has been associated with higher BMI, lower insulin sensitivity, higher triglycerides and more difficulty with weight loss (Dashti et al., 2021). Your nutrition strategy needs to work with your body, not against it.
02

Your Brain Needs Fuel and Fluid to Perform

Long gaps without food, skipped meals and poor hydration can affect concentration, decisions, mood, cravings and how much energy you have left. Processing speed was around 14% faster after water consumption in one study (Edmonds et al., 2013). Fuelling the brain is part of professional performance.
03

Appetite, Sleep and Food Choices Are Connected

Appetite is not just willpower. Sleep, stress, meal timing, caffeine, alcohol and long gaps without food influence hunger, cravings and energy regulation. Short sleep has been linked with higher fast food intake, lower fruit and vegetable intake and increased calories (Gomes et al., 2023). Understanding appetite helps your strategy support energy, body composition, sleep and consistency.
04

Health Is What Lets You Use the Life You Have Built

Health is easy to postpone when work is busy and nothing feels urgent yet. But repeated patterns shape how you feel now and the health you carry forward: missed meals, late dinners, sitting time, dehydration, caffeine, poor sleep and recovery. Prolonged sitting has been linked with poorer cardiometabolic health, even with exercise (Mayor, 2015). What is the value of success if your health limits how much of it you can enjoy?

Meet Claire Fudge

Clinical Dietitian. High-Performance Sports Nutritionist. Nutritional Engineer. Endurance Athlete.

As Clinical Director of 4th Discipline, I bring together more than 23 years of clinical nutrition, elite sport and high-performance fuelling experience.

I work with professional and Olympic-level athletes, elite performance pathways and world-class programmes, collaborating with medical, coaching and sports-science teams to ensure athletes receive the highest level of joined-up care.

As a Registered Clinical Dietitian and High-Performance Sports Nutritionist, I look beyond food alone. I consider the full performance picture: physiology, medical history, training load, recovery, gut health, body composition, energy availability and long-term health.

I also understand the demands personally. As an endurance athlete and business owner, I know what it takes to work hard, train hard and continue performing when time, energy and recovery are under pressure.

That describe myself as a Nutritional Engineer! 



I identify what may be limiting performance, connect the clinical and sporting data, and build a personalised fuelling strategy designed around the athlete, not just giving a generic plan.
The aim is not simply to produce a result at the next competition. It is to build robust, resilient athletes who can perform at a high level now while protecting their health and sporting longevity.

Coaching Models

Choose the level of support that best fits your goals, lifestyle, health needs and professional demands.

1:1 Personal Performance Nutrition Coaching

Understand where you are now: assessment of nutrition, health, biomarkers, symptoms, sleep, recovery, work demands and travel.

Set clear goals across health, work, energy, body composition and life outside work.

Enhance knowledge and confidence: make informed decisions, cut fact from fiction and understand what works for your body.

Identify marginal gains to improve energy, focus, resilience, health markers and daily performance.

Test, review and adapt with coaching and interpretation.

Create lasting habits for demanding work, travel, client events and high-pressure projects.

24/7 Learning Lab access: guides, recipes, videos and resources.

 

Fuel the Fire Academy

Group & Community Support

Expert-led sessions on nutrition, recovery and health for driven professionals.

Practical tools for work, travel, meetings and family life.

Private group chat, nudges and structured support.

Brief personal check-ins with Claire.

Learn alongside driven professionals balancing career, health, family and vitality.

In-person performance days, selected sessions and testing.

24/7 Learning Lab access: guides, recipes, videos and resources.

Investment starts from £500/month

The performance fueling framework
The performance fuelling frameworkTM
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“Your encouragement means a lot at a time when work and training is difficult and I cannot see the journey back to ‘normal’….. your positivity is highly contagious – I feel better already “

~ Caroline Business professional and Triathlete
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I really enjoyed the discussions with Claire. She gave me really good and relevant advice which helped me a lot to overcome my problem.

~ Anonymous Business professional
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“ I could write so much more . Claire has done an amazing job, and been great, provided consistent, caring support along a tough path to improve my nutrition and expert, individualised advice for fuelling (…) Claire is so well informed, not only in sports nutrition and supplements but also (…) in other areas, including sleep; protein, and ageing (in the context of) a healthy balanced nutritious diet to meet daily and training needs. I have learnt so much and feel so much more equipped to fuel”

~ Mary R. Doctor and Ironman Age Group triathlete and Endurance Athlete
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Thank you for your help over the last few months. It was very helpful and I learnt many things I was not aware of before.

~ Giulia Runner
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I’ve been running for quite a few years, but I just kept running out of energy. Training for a marathon, I got in touch with Claire. I thought she would just give me a food plan, but she basically educated me on what I needed to eat and the right food groups to eat together. It was just an absolute game changer. I did my marathon with absolutely no problems—didn’t once run out of energy.

~ Joanne Managing Director and Athlete
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The moment someone says to you, ‘you know the symptoms you are experiencing are not normal’. Was really the moment the journey began to experiencing a normal existence. “years with food intolerances, …. impossible to control …..I am now free to live my life without symptoms and all of the related issues I was experiencing (anxiety about going places, worrying if I was going to be ill when I went out, the list continues…) . all of the guesswork (was removed) ….introducing each element in bitesize chunks ensured it wasn’t in anyway daunting, and allowed the outcome to be obvious . Having the support and expertise throughout was such a huge benefit, and now I can everyday apply the principles learnt with confidence, knowing they are specific to my needs. Being normal feels amazing!”

~ Sarah Director and Adventure Endurance Cyclist
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“before my first 70.3 …we identified my intolerances for everyday life, (she helped) fuel my training sessions and put together a plan for the lead up to my race and race day itself. “Claire being a triathlete herself, her advice is second to none”

~ Jordan Triathlete
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training for my first Ironman I knew how important getting my nutrition right would be leading up to the race and on race day. Claire has helped me more than I could have imagined. Lifestyle changes we have discussed and implemented have meant that unlike any fad diets before; I am leaner and letting my food be the proper energy and recovery source it should be. Claire is always supportive, really cares about the people she works with and I love her approach to nutrition; working with what you have to make the best out of your body.

~ Vicki Business professional and Triathlete
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instrumental in uncovering my coeliac disease, supporting me to make the necessary changes to a gluten-free lifestyle, which alleviated by IBS symptoms. This in turn positively impacted my fertility. Can’t thank her enough for her tailored expertise which also extended to advice around diabetes management during pregnancy!

~ Jen Psychologist and Yoga
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Since working with Claire, she’s made a huge difference to the way that I’ve been able to execute my training sessions, bring the energy that I need at the right times to competition, and get the most out of recovery. I wholly recommend giving Claire a call. The biggest thing to take away is that everything that we do is absolutely manageable!

~ Georgie Cohen Marketer and Professional Skeleton Athlete
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“You quite literally changed my life; I could not have done this without you”

~ Charlie R. Business Owner, Entrepreneur, and Ironman and Endurance Age Group Athlete
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I wanted to understand what food is good for me as I trained and when doing races…..some foods did not agree with me but I did not understand why……..Gave me these answers and has helped me improve my race times as well as eat more sensibly. My lifestyle has benefited from this enormously. I received expert advice on what to eat during (injury) ….incredibly helpful and informative and I was impressed at her wealth of knowledge & experience. “Claire helped me understand what foods work for my body. I’ve improved my race times and transformed my lifestyle.”

~ Rachel Managing director and World-class triathlete
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When I started nutrition coaching with Claire I’ve saw an absolutely incredible difference in not only my racing performance and day to day training, but a difference in my everyday life. It has changed how I perceive food and how I think about myself and how I can best fuel myself for what I have to do that day.

~ Heather Teacher and Age Group Triathlete
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“help with a long standing issue, It was her personality, honesty and openness which gave comfort in trying her methods. Over the year that I have spent working with her, I have gained the knowledge and insight to manage my symptoms, giving me a new found sense of freedom. I would wholeheartedly recommend Claire to anyone who needs nutritional advice.”

~ Richard Business owner and Triathlete
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Just wanted to email you with a big thank you for helping me to manage my eating regime. I was very pleased with my race results.

~ MS Business professional and Runner
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“exceptionally supportive …excellent knowledge of nutrition both in terms of supporting sports performance but also in optimising health. Claire’s background in long distance triathlon herself means that she is able to support in ways others wouldn’t …..her race and training experiences. I (would) recommend Claire for anyone who is looking for support with their nutrition – either for optimising everyday health and wellness or for enhancing and supporting sports performance”

~ Julia Business professional and Ironman triathlete
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Where I’ve really benefited from working with Claire Fudge is around the timing of food around my training, but also particularly around travel. Working with Claire on a plan so that I don’t go for chocolate in the airport or at the petrol station, but have snacks and planned timing along the way has really been beneficial. She’s great at delivering helpful tips that are quick and easy to do.

~ Laura Siddall Professional British Triathlete
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“I could start to eat intuitively again; I recovered my menstrual cycle and eat intuitively without any fear; she was there with support and guidance”

~ Ella Runner
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I went to Claire looking for a quick fix, however Claire explained in detail the process and why I needed to take a different approach to hit my goals. Claire was very encouraging, providing weekly support and further analysis on my progress.

~ Stephen Business professional and Triathlete
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“I run better, I feel better, I’m not getting injured, and I sleep well”. “I thought I needed a diet plan; but that is exactly what I didn’t need. I gained the knowledge and support and the balancing of everyday life around training along with personal life too”.

~ Sam Lt Cdr Thompson MBE RN, Senior Naval Instructor Wildcat Training Centre, and Ironman Age Group Triathlete
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I had a sweat test done by Claire – I’ve yet to put the results into practice, but really enjoyed our discussion. She explained the process and how to put the results into practice very clearly. She also seemed to me to have a very balanced view (it was not just a sales pitch for Precision Hydration!) which gave me a lot of confidence in her advice.

~ Kevin
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I felt at the time when I started with Claire that the quality of my life wasn’t very high and I was really struggling to enjoy my training. I certainly wasn’t enjoying food and it’s safe to say that she worked with me every step of the way to transform my life everyday.

~ Laura Business Tech Marketing Professional and Athlete
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“I thought I needed a diet plan; but that is exactly what I didn’t need. I gained the knowledge and support and the balancing of everyday life around training along with personal life too”.

~ Steph Business owner and Triathlete
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“Claire’s methods didn’t leave me feeling hungry or depleted of energy like fad diets can, in fact I couldn’t quite understand how I was able to eat quite so much and feel so full and strong………what a difference having a nutrition plan to work with made. My performance rocketed and I completed my two dreams in one season. Medalling at the European Middle Distance AG triathlon and smashing my first ironman”

~ Toni Director and Triathlete
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I cam to see Claire in the run-up to my first ironman event. Within days of following her advice, I saw a noticeable difference; Training is improving all the time. All is on track for nailing the nitrition for the ironman event next month!

~ Claire Business professional and Ironman triathlete
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“helped me relearn that “Food is food”.Fed up of seeing zero results through yo-yo dieting, I had tried intermittent fasting, Keto and various other diets. I wanted a lifestyle change and wanted to be able to enjoy food without the guilt associated with “bad food”. I can now enjoy eating fruit without feeling guilty! I’m confident I will reach my goal weight comfortably and remain constant”

~ Charmaine Business professional
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Struggling with allergies, intolerenaces and anxiety around food for many years had a huge umpact in my daily life, being able to properly fuel for marathon training, recovery and race days. Symptoms have improved dramatically, my training is much more efficient and my confiedence around food has grown. I have lost count of the different diets and plans that I have tried; I have seen a really positive change. I really couldn’t recommend Claire any more highly.

~ Rhys Accountant and Marathon runner
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I was a relatively competitive athlete but wasn’t getting any better. My relationship with food was challenged, but Claire Fudge unzipped all of my psychological hang-ups and addressed it with science. It freed me from worrying, and I actually started enjoying food again. It’s an educational investment, a change-in-whole approach, and something I will carry through for life. I can’t recommend her highly enough.

~ Richard CFO and Ironman Age Group Athlete
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I have worked with Claire for over a year having suffered with disordered eating from an early age. I knew I needed to do something to change it.

~ Annie Business professional and Runner
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“ Claire went into a lot of detail, preparing nutrition plans for me and for ½ and full races and also assisted me with recovery nutrition. She is very supportive and knowledgeable. I would highly recommend her”

~ Seanin Law professional and Triathlete
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Just wanted to email you with a big thank you for helping me to manage my eating regime. I was very pleased with my race results.

~ Anonymous Athlete
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“have really appreciated the holistic approach to your guidance that reflects a genuine desire to teach me the skills I need to become the healthiest and strongest athlete I can be”

~ Rosalind Business professional and Triathlete
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A friend who is a no nonsense athlete was working with Claire and I thought she would be good for me as although not a ‘real’ athlete myself, I wanted to understand how to fuel for 70.3 training and simultaneously sort out my ongoing chaotic relationship with food and eating for ‘normal life’. I knew Claire had an understanding of and worked in both areas.

~ Penny Teacher and Triathlete and cyclist
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I couldn not recommend working with Claire enough – it was a relef to find someone that could relate and understand my nutritional needs for ironman training/racing and recovery!

~ Emily Business professional and Ironman triathlete
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I started working with Claire when I realised that I thought I knew what I was doing but I really didn’t when it came to sports nutrition. I’d been competing at an age group level internationally in triathlon and since working together, my performances have improved together with making podium places as well as making the jump up to 70.3 a successful one.

~ Jess Doctor and World-class Ironman athlete

Frequently Asked Questions

Limited monthly availability
Which service is right for me?

The right service depends on whether you are looking for support as a driven professional, a professional who competes, an athlete, a team, a research organisation or an event organiser.
If you are unsure where to begin, book a discovery call and we will guide you towards the most appropriate pathway.

Do you only work with professional and elite athletes?

No. I work with professional and Olympic-level athletes, athletes on talent and high-performance pathways, competitive age-group athletes and professionals who train, race or compete alongside demanding careers.

The level at which you compete is less important than your commitment to improving your health, fuelling and performance.

I also support driven professionals who are not athletes but want to improve their energy, focus, resilience and long-term health.

What is Personal Performance Precision?

Personal Performance Precision is my approach to creating nutrition support that is fit for purpose and designed around the individual.

Generic plans are built for an average person. They do not account for your physiology, health history, symptoms, training, workload, lifestyle, preferences or goals.

Personal Performance Precision brings these factors together with clinical expertise, performance science and meaningful personal data. This allows us to identify what is affecting your health and performance, then engineer a practical strategy around your specific needs.

Like a tailored suit rather than something taken straight from the rack, the strategy is shaped around you: how you live, how you move, what your body needs and what you are working towards.

The result is not simply more nutrition information. It is a clear, personalised approach designed to support your energy, health, recovery and performance now and over the longer term.

What is the difference between a dietitian, a nutritionist and a nutritional therapist?

In the UK, dietitian is a legally protected title. Dietitians are regulated healthcare professionals qualified to assess and treat nutritional problems, including those associated with medical conditions.

The titles nutritionist and nutritional therapist are not legally protected, so qualifications, training and experience can vary. Registered Nutritionists and nutritional therapists who belong to recognised professional bodies may have completed relevant training, but their scope of practice differs from that of a registered dietitian.

As a Registered Clinical Dietitian and High-Performance Nutritionist, I combine clinical assessment and evidence-based care with specialist sports and performance nutrition.

This is particularly important where symptoms, blood markers, low energy availability, gut issues, injury, REDs, disordered eating or a medical condition may be affecting health and performance.

Do you work with people with eating disorders or REDs?

Yes. I provide specialist clinical and performance nutrition support for athletes and active individuals with eating disorders, disordered eating, Relative Energy Deficiency in Sport (REDs) and low energy availability.

Support may include nutritional rehabilitation, restoring adequate fuelling, reducing nutrition-related risk, supporting training and recovery, and working alongside doctors, psychologists, physiotherapists, coaches and other members of the multidisciplinary team where appropriate.

Where clinical risk is present, the priority is always safe, coordinated and appropriate care.

Do you write meal plans or diet plans?

A clear plan for what, when and how you eat can be valuable, but lasting change requires more than a prescriptive meal plan.

Where appropriate, I provide personalised meal structures, fuelling plans, practical food ideas, competition strategies and guidance around timing, recovery and preparation.

These sit within a wider approach that considers your health, schedule, training, travel, preferences, symptoms and goals.

The aim is to give you a strategy you can understand, adapt and sustain rather than a rigid plan that only works temporarily.

Do you offer one-off consultations?

Most individual support is delivered through a structured programme rather than a single appointment.

A first consultation begins the process of understanding your symptoms, patterns, data, health history, training demands and goals. Follow-up support allows recommendations to be implemented, reviewed and refined.

One-off specialist consultations may be available for clearly defined needs, such as an expert review or sweat sodium testing.

Please contact the team to discuss the most appropriate option.

What happens after I enquire?

You will be guided towards the service that best matches your goals, health needs and performance demands.

Where appropriate, the first step will be a discovery call or initial conversation to understand the support you are looking for and whether the service is the right fit.

You will then receive clear information about the recommended pathway, what is included, the expected timescale and the investment required.

A limited number of new clients are accepted each month to maintain the depth and quality of personalised support.

Do you only work with athletes?

No, we work with people who are driven and perform. So whether you are a professional who plays golf or a business owner who has challenges with health, fatigue and travel demands , we can work together

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