RED-S Nutrition Clinic

UK’s Leading RED-S Clinic for Athletes and Active Individuals

At Nutrition & Co, our specialist dietitians support individuals with suspected or diagnosed RED-S (Relative Energy Deficiency in Sport) through personalised, evidence-based nutrition care.

We assess your training, eating patterns, symptoms, energy levels, hormonal health and lifestyle to identify whether low energy availability may be impacting your health or performance.

Our support focuses on improving energy intake, restoring recovery, supporting hormones, reducing fatigue, improving performance and helping you fuel properly for both exercise and everyday life.

Through tailored nutrition strategies, meal structure and ongoing support, we help clients recover safely, rebuild confidence around food and optimise both health and performance long term.

Specialist Nutrition Support for Relative Energy Deficiency in Sport (RED-S)

At Nutrition and Co, we offer the UK’s first dedicated RED-S Nutrition and Performance Package, providing comprehensive 1:1 support for athletes and active individuals affected by Relative Energy Deficiency in Sport (RED-S).

Our team of expert sports dietitians and performance nutritionists specialise in the prevention, diagnosis, and recovery of RED-S. We focus on restoring energy balance, optimising performance, supporting menstrual health, improving bone health, and rebuilding long-term vitality.

If you’re searching for the best RED-S nutrition support in the UK or a dedicated RED-S clinic, you are in the right place.

Are you always exhausted, struggling to recover, or seeing your performance decline despite training hard?

You could be suffering from Relative Energy Deficiency in Sport (RED-S) - a common yet often overlooked condition that affects athletes of all levels.

At Nutrition and Co., we specialize in helping athletes overcome RED-S, restore energy balance, and unlock their full performance potential—without the frustration of trial and error.

What is RED-S?

Relative Energy Deficiency in Sport (RED-S) occurs when there is an imbalance between energy intake (diet) and energy expenditure (exercise/training), leading to impaired physiological functioning across multiple systems including:

Menstrual function
Bone health
Metabolic rate
Immune function
Cardiovascular health
Psychological wellbeing
Performance outcomes (strength, endurance, concentration, recovery)

RED-S can affect any active individual, regardless of age, gender, or sport.

If left untreated, RED-S can lead to serious health consequences, chronic injury risk, and long-term declines in athletic performance.

Signs You Might Be Under-Fueled & Underperforming

Energy & Performance Decline

❌ Constant fatigue & exhaustion, even after rest days
❌ Struggling to keep up with training loads – workouts feel harder than they should
❌ Hitting a performance plateau or even regressing despite training harder
❌ Loss of strength, speed, or endurance – feeling weaker instead of stronger
❌ Lack of motivation & mental fog – struggling to focus during training or competitions

Emotional & Mental Fatigue

💭 Mood swings, irritability & anxiety – feeling mentally drained all the time
💭 Self-doubt & frustration – questioning why you're not performing how you should
💭 Disordered eating patterns – obsessing over food, calories, or restrictive eating
💭 Fear of fueling properly – worrying that eating more will affect body composition

Recovery & Injury Struggles

⚠ Frequent injuries – stress fractures, muscle strains, or overuse injuries
⚠ Slow recovery – soreness lingers longer than expected, injuries take forever to heal
⚠ Immune system issues – getting sick often or struggling with colds and infections
⚠ Inconsistent performance – some days feel good, others feel like a complete struggle

Long-Term Health Risks of Ignoring RED-S

⛔ Osteoporosis & weak bones – increased risk of fractures & long-term bone health problems
⛔ Hormonal imbalances that take years to fix if not addressed early
⛔ Compromised metabolism, making it harder to recover & regain performance levels
⛔ Increased burnout & mental fatigue, leading to early drop-out from sports

Hormonal & Metabolic Issues

🚨 Irregular or missing periods (for female athletes) – a red flag for RED-S
🚨 Low testosterone levels (for male athletes) – reduced strength, muscle loss & fatigue
🚨 Digestive issues – bloating, irregular bowel movements, or constant gut discomfort
🚨 Struggling to gain muscle or maintain weight, despite eating "enough"
🚨 Metabolism slowing down – body holding onto weight or extreme difficulty gaining lean mass

Are These RED-S Symptoms Holding You Back?

Many athletes push through constant fatigue, injuries, and declining performance without realizing their body is under-fueled. If you’re experiencing any of the following, it’s time to take action.

✅ Constant tiredness & exhaustion, even on rest days
✅ Training hard but seeing no progress – or even getting weaker
✅ Frequent injuries like stress fractures or muscle strains
✅ Slow recovery & persistent soreness after workouts
✅ Irregular or missing menstrual cycles (for female athletes)
✅ Low testosterone levels & muscle loss (for male athletes)
✅ Brain fog, mood swings & lack of motivation
✅ Struggling to maintain or gain muscle, despite eating “enough”
✅ Compromised immune system – getting sick more often

Left untreated, RED-S can lead to long-term damage, including weak bones, hormonal imbalances, and a slower metabolism. The good news? We can fix it.

How Our RED-S Clinic Works

Step 1: Comprehensive RED-S Assessment

Your journey begins with an in-depth 60-minute online consultation with a specialist sports dietitian.

We will assess:

Training volume, intensity and recovery
Current energy and nutrient intake
Symptoms associated with RED-S and low energy availability
Menstrual or hormonal health where relevant
Injury and bone health history
Gastrointestinal symptoms
Sleep, fatigue and recovery
Relationship with food and eating behaviours
Previous blood results and medical history

You will also complete a RED-S risk screening assessment to help identify potential areas of concern.

Following your consultation, you will receive a personalised treatment strategy based on your health, training demands, symptoms and performance goals.

Step 2: Blood Testing and Clinical Investigations

Where clinically indicated, we may recommend further blood testing or medical investigations.

Private at-home blood testing may be available at an additional cost and can assess important markers associated with RED-S, including:

Iron status and ferritin
Vitamin D
Vitamin B12 and folate
Thyroid function
Metabolic markers
Reproductive hormones
Testosterone or oestrogen where appropriate
Other nutritional deficiencies based on your individual assessment

Where necessary, we will also recommend that you speak with your GP, sports physician or another appropriate medical professional for additional investigations.

Step 3: Personalised RED-S Nutrition and Performance Plan

Your sports dietitian will develop an individualised nutrition strategy designed to restore energy availability while supporting training and performance.

Your plan may include:

Daily energy and nutrient targets
Strategies to increase energy availability
Pre-, during- and post-training fuelling
Recovery nutrition
Carbohydrate and protein requirements
Meal and snack timing
Competition-day nutrition
Hydration strategies
Supplement recommendations where clinically indicated
Practical meal plans and fuelling guides

The aim is not simply to increase food intake, but to ensure your nutrition appropriately supports your training load, recovery, hormonal health, bone health and long-term athletic performance.

Step 4: Ongoing RED-S Recovery Support

Recovery from RED-S often requires ongoing monitoring rather than a single consultation.

Regular follow-up appointments allow your dietitian to monitor:

Energy levels and fatigue
Training tolerance
Performance and recovery
Menstrual or hormonal changes
Gastrointestinal symptoms
Injury and bone health
Dietary intake and fuelling
Progress towards restoring adequate energy availability

Your nutrition strategy can then be adjusted as your health, training and performance change.

Support may include:

Regular 1:1 online follow-up consultations
Online food diary and nutrition tracking
Progress and symptom monitoring
Regular check-in questionnaires
Ongoing adjustments to your nutrition and fuelling strategy

Step 5: Multidisciplinary RED-S Support When Required

RED-S can affect several areas of physical and psychological health, so some athletes benefit from support from more than one healthcare professional.

Where appropriate, we can work alongside or recommend referral to:

Sports physicians for medical assessment and RED-S management
Sports psychologists or eating disorder specialists where food, body image or psychological factors require additional support
Physiotherapists for injury rehabilitation and return-to-sport planning
Your GP or other healthcare professionals involved in your care

Our goal is to provide a coordinated approach that supports both your long-term health and sporting performance.

Specialist RED-S Nutrition Support for Athletes

Whether you are experiencing persistent fatigue, recurrent injuries, menstrual changes, declining performance or concerns about under-fuelling, our specialist sports dietitians can help identify whether low energy availability or RED-S may be contributing.

Early identification and appropriate nutrition support can help protect your health, improve recovery and allow you to train and compete more effectively.

1 / Initial RED-S Assessment

Jenaed: £259
Nutrition & Co. Team: £159

A comprehensive 60-minute consultation to assess your symptoms, training load, fuelling, energy availability and RED-S risk.

2 / Personalised Nutrition Plan

£75

A tailored nutrition and fuelling plan designed around your training, recovery, health and performance goals.

3 / RED-S Follow-Up Support

£85 per follow-up

Regular follow-up consultations allow us to monitor your recovery, adjust your nutrition strategy and support a safe return to optimal health and performance.

Packages and payment plans are available for athletes requiring multiple appointments.

For RED-S recovery, we typically recommend a minimum of 6 follow-up appointments over approximately 4–12 months, depending on the severity of symptoms, training demands and individual progress.

Who Is This Service For?

Athletes experiencing low energy availability
Active individuals with menstrual irregularities (e.g., missed periods)
Athletes with recurrent injuries, stress fractures, or poor recovery
Individuals showing unexplained declines in performance or chronic fatigue
Those with a history of disordered eating alongside high training loads
Anyone diagnosed or suspected of having RED-S needing specialist recovery support

Why Choose Our RED-S Service?

Unlike generic nutrition plans, this specialized program is designed exclusively for athletes struggling with low energy availability & RED-S.

✅ Proven, science-based strategies tailored to your sport
✅ Expert-led program by top sports dietitian & RED-S specialist
✅ Personalized nutrition plans that fit your body’s needs & training load
✅ Ongoing support & accountability for long-term success
✅ Holistic, multi-disciplinary approach for complete recovery

Why Choose Nutrition and Co’s RED-S Clinic?

Led by UK’s Leading RED-S Dietitians
Specialist training and extensive experience in RED-S diagnosis, management, and recovery.
Holistic, Athlete-Centred Approach
We combine performance nutrition, clinical recovery strategies, and psychological support principles.
Science-Backed and Results-Driven
Every intervention is based on the latest scientific evidence and adapted to your sport and personal situation.
Discreet, Compassionate, Professional Support
We understand RED-S is a sensitive issue and work with complete professionalism and care.
UK-Wide Online Consultations
Access expert RED-S nutrition support no matter where you are based.

Our Mission: Restore Health. Rebuild Strength. Redefine Performance.

✅ Address the root causes of RED-S
✅ Recover lost health and resilience
✅ Build performance on a strong, sustainable foundation

Book - Team

Book - Enquiry call

Book - Jenaed

"I finally feel strong again after years of exhaustion!"

“I had no idea I was under-fueling my body until I started this program. I was constantly tired, getting injured, and struggling to keep up with my training. The private blood tests showed exactly what was wrong, and the personalized nutrition plan helped me rebuild my energy. Now, my injuries have reduced, my workouts feel stronger, and I finally feel like myself again!” – Sophie, Distance Runner

"I went from feeling weak & injured to breaking my personal records!"

“Before joining this program, I felt like my body was failing me—I was constantly fatigued, getting stress fractures, and my performance was suffering. I assumed I just needed to train harder, but it was actually RED-S. Jenaed and her team gave me a science-backed plan that included fueling strategies, meal plans, and supplements tailored to my body’s needs. Now, I’m training harder, recovering faster, and have hit new PBs in my sport!” – Tom, Triathlete

"My strength, endurance, and motivation are finally back!"

“RED-S was ruining my performance, and I didn’t even realize it. My weight was dropping, my endurance had tanked, and I felt like I was overtraining. This program helped me rebalance my energy intake, optimize my nutrition, and work with a team of experts. Now, I recover faster, my strength is back, and I actually enjoy training again!” – James, Elite Cyclist

Your specialist RED-S Dietitian

Jenaed Ruddock

Beatriz Ribeiro

Unsure if You Have RED-S or Are at Risk?

If you are unsure whether you have confirmed RED-S (Relative Energy Deficiency in Sport) or if you may be at risk, the first step is to book an initial consultation.

During this consultation, your specialist dietitian will conduct a comprehensive RED-S assessment, evaluating your energy availability, training demands, health markers, and any symptoms that may indicate RED-S or risk factors for it.

Booking an initial consultation allows you to receive a professional assessment, clarity around your current health status, and personalised advice on the best next steps.