A woman running along a waterfront path on a sunny day, wearing a cap, black shirt, black shorts, and sneakers.

Fluid

oh hey there

Eliza Kelly - Perth-based Accredited Practicing Dietitian and Sports Dietitian

At Fluid Performance Nutrition, our vision is to redefine what it means to fuel well by making nutrition feel flexible, empowering and purpose-driven. We support athletes and active individuals to eat with confidence, adapt through every season of training and life and feel truly connected to their performance and wellbeing.

welcome……

swim

run

cycle

train

rowing

surf

ultra

swim • run • cycle • train • rowing • surf • ultra •

Fuel with flexibility. Perform with Purpose.

Expert Sports Nutrition Coaching for Everyday and Elite Athletes

  • A smiling woman running on a dirt trail near the coast, giving a thumbs-up, wearing a sun hat, black jacket, shorts, and trail running shoes.

    SPORT

    Endurance and Ultra Endurance: Running (road/trail), Ultramarathons, Triathlon/Ironman, and Cycling (road/mountain bike/gravel)

    Swimming: open-water, long-distance, club

    Strength Training & Hybrid athletes

    Team Sports

    Rowing

    Kayak

    Canoe

    Surfing

    Surf Club

    Dance

    Gymnastics

    Hiking

  • A person swimming in open water near a yellow kayak with a person paddling. Several boats are visible in the background under a cloudy sky.

    INJURY PREVENTION & INJURY SUPPORT WHILE RECOVERING

    Avoid under‑fuelling and reduce your risk of RED‑S, gut issues, bone stress injuries, soft‑tissue damage and more by learning how to match your nutrition to your training. Know how to fuel before and after surgery or injury to support optimal healing and rehabilitation.

  • A group of people in a park, with trees and a partly cloudy sky in the background, engaging in a fun outdoor activity where some are running and others are cheering and high-fiving.

    CREATE AND MAINTAIN A POSITIVE RELATIONSHIP WITH FOOD

    Unsure where to begin in this big, confusing world of never-ending information on social media and unwanted advice from your Aunt Carol?

    Bringing back movement into your life?

    Life got in the way…. but NO MORE!

    Together, we’ll build strategies that suit your unique needs, lifestyle, and any health conditions. This is a space where you’ll find support and resources to help you tune in to your body cues and feel at ease with eating, to learn how to fuel your body and mind to support both your day‑to‑day life and long‑term health. You’ll also find compassionate support for disordered eating patterns, to slowly rebuild trust in yourself and your body, helping you feel confident, nourished, and in tune with your needs.

  • A rowing team practicing on a calm body of water near a coastline with modern residential buildings and lush greenery in the background.

    ADOLESCENTS

    Active teen competing in a million sports?

    Adolescence is a time of rapid growth and high energy demands. I work with young athletes (and often their parents) to build healthy, balanced eating habits that support performance, recovery and long‑term health.

    Together, we focus on practical strategies to stay energised for training, maintain strength, and reduce injury risk, all while nurturing a positive relationship with food and body during these important years.

Our Services

  • Personalised support tailored to your goals, lifestyle and sport.

    The initial consultation includes going through your background, personal history, relevant medical information, current dietary habits and chosen goals.

    (Basically, just getting to know you!)

    From there, Eliza will use this information to create personalised suggestions tailored to your lifestyle and goals. A supporting nutrition plan (if required) will be sent via email after the session.

    Find out more through our service guide.

  • Students will receive a 10% discount with a valid concession card!

  • Whether it’s your first triathlon, a trail marathon, or a multi-day endurance event, your nutrition can make or break your performance.

    We create tailored fuelling and hydration strategies for before, during and after your event based on your training, personal needs and race day logistics. Designed to reduce the guesswork so you can perform at your best with confidence.

    BOOK A 3-4 SESSION PACKAGE TO DIAL IN YOUR PREP AND FEEL CONFIDENT AT THE START LINE.

    Races. Competitian prep. Travel

  • Tailored group nutrition education sessions specific to your sport/club.

    Examples include (but are not limited to)

    • Sports nutrition - to support training

    • Game Day fuelling

    • Event planning

    • Everyday eating/portion guides

    Both online and in-person avaliable!

    Email for further enquiries and pricing.

  • For team/club-specific resources & brand partnerships.

    Contact via email for further information/enquiries.