Optimising health, energy, and results through personalised dietetic support

Fuel Performance & Well-Being with Expert Nutrition

At KK Nutrition, we provide science-backed, personalised nutrition strategies to help you fuel smarter, perform better, and build lasting health. Moving beyond restrictive diets, we focus on sustainable habits that optimise performance, body composition, and overall well-being.

Whether you're an athlete or simply striving for a healthier lifestyle, our expert guidance equips you with the knowledge and tools to make informed choices for long-term success.  

Begin your journey

Fueling performance and well-being with expert dietetic and nutrition services

Let us help you thrive and achieve what truly drives you

Through proven nutrition strategies, we empower individuals to prioritise purposeful fueling and training—not dieting and exercising.

Whether you’re chasing peak performance or looking to optimise your health, we’re here to help you take control of your nutrition, build sustainable habits, and become the strongest, healthiest version of yourself. With a flexible, empowering approach, we’ve helped hundreds achieve lasting results and we’re ready to do the same for you.

With a BSc Honours in Nutrition and a First-Class MSc in Dietetics, I specialise in both elite sports and clinical nutrition, helping individuals optimise health and performance through evidence-based strategies.

As a former World Class Irish dancer and passionate bodybuilder, I understand the challenges athletes face—under-fueling, body image struggles, and the pressure to prioritise appearance over performance. These experiences drive my mission to help others shift their focus toward sustainable, performance-driven nutrition for lasting success.

With a flexible, empowering approach, we’ve helped hundreds achieve lasting results—and we’re ready to do the same for you.

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Fueled by Experience

Meet Kelsey – Registered Dietitian & Performance Nutrition Expert

Fuel to perform series

Women in Sports

A comprehensive group-based programme designed to educate and empower female athletes across all sports. 

Irish Dancers

Precision Nutrition for Performance

A six-week educational programme designed specifically for Irish dancers, focusing on nutrition strategies to enhance endurance, strength, and recovery. 

Learn more

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Nutrition for Strength, Endurance & Recovery

What we cover

Dietetic Consultation

Navigate medical conditions and specific dietary needs with expert, evidence-based guidance. Get personalised support to improve your health, manage challenges, and make informed choices for lifelong well-being.

Performance Nutrition

Explore our range of tailored services, carefully designed to help you achieve your health and performance goals. Each program is personalised to meet your unique needs, providing the expert guidance and support you need to make lasting changes and reach your full potential.

Muscle Building

Gain strength, build lean muscle, and transform your physique with a tailored nutrition plan. Get expert macro guidance and the support you need to maximize results and create a foundation for long-term progress.


Weight Loss

No more guesswork, frustration, or unsustainable plans. Our 1:1 coaching programs equip you with the tools, knowledge, and support to achieve real, lasting results and sustain them for the long term.

View Programmes

Fuel your body like an athlete and take your performance to the next level. This program provides customised nutrition strategies to enhance endurance, recovery, and training outcomes—so you can compete and perform at your best.

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Begin your path to a stronger, healthier you

No more guesswork, frustration, or unsustainable plans. Our 1:1 coaching programs are designed to help you achieve real, lasting results—whether your goal is weight loss, muscle growth, peak performance, or better health.

I have had such a wonderful and positive experience with the programme so far. I feel that I have learned a lot in such a short space of time and I am getting to understand my body and what it needs . You have been so supportive the whole way through and have helped me put things into perspective when I can’t always see it for myself. There hasn’t been one moment where I have felt alone in my journey which makes it so much easier to take things day by day and see how sustainable this lifestyle can be.

Gráinne Casey

What can I say about someone who is so knowledgeable and interested in getting you to your goal. You have been a great help and so very friendly through the whole experience and your knowledge was second to none. You helped me understand how my body reacts to different food and how important it is to include whole foods to improve myself.

Noel Rodriguez

I was going through a very tough time personally and though my work life, Kelsey understood my difficulties and guided me each week to do my best even when i felt like i couldn’t get through it. She never pushed me too hard and was so open to listening to any ideas i had to change up my plan to suit my own needs and adapted it to make sure i was hitting my goals each week.

Mairead Williams

What clients are saying

Ready to take the next step in your nutrition journey? Book in for a discovery call and avail of a complimentary consultation.

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Take the next step