Elite Sports Dietitians
About Nutrient Nation
Gain more energy for life with nutrition advice
tailored to the way you live.
Let’s take the guesswork out of what you should be eating. At Nutrient Nation, we make it easy to give your body the fuel it needs for work and play.
Doing all the right things but not seeing the results you want? Or maybe you don’t even know where to start?
When you feel overwhelmed about what you should and shouldn’t be eating, it’s impossible to develop a positive relationship with food.
That’s where we come in – to empower you to make the right choices. Life is too short to yo-yo between diets and experiment with food fads; you deserve a way of eating that will bring out the best in you. (Hint: there is so much more to eating well than steamed fish and veggies at every meal.)
Practical nutrition advice
that suits your lifestyle.
Our method is called Performance Nutrition. This evidence-based technique connects the dots between work, life, exercise and food to give you more out of each day.
See us as much as you need to reach your goals, and enjoy the confidence that comes from knowing you are treating your body right.
Our founder Rebecca Haslam started Nutrient Nation with the goal to make practical nutrition advice more accessible. She may have a PhD in Human Physiology, but she knows how to break the science down in a way that’s easy for you to understand.
Worried that you're too busy or tired to make changes? We can show you simple ways to get healthy.
By teaching you what your body needs, we help you to make positive changes that you can actually stick to. So whether you need more energy, want to lose weight or are training for a big event, we can get you working towards a healthier you.
Meet our nutritionists and dietitians
Dr Rebecca Haslam
Rebecca launched Nutrient Nation in 2015 during the final year of her PhD at the University of Newcastle. She began her career researching the impact of diet on the performance of athletes, but she knew she could be helping more people –and that’s when Nutrient Nation began.
Rebecca is passionate about helping athletes progress from structured and rigid eating patterns to more flexible and spontaneous ways of eating, encouraging a more connected and enjoyable relationship with food, whilst still reaching their sporting potential. She has a down-to-earth attitude that clients appreciate when working towards their personal goals.
She holds a Bachelor of Nutrition and Dietetics, a PhD in Human Physiology and has completed the ISAK Level 1 Anthropometry course. She is also a member of the Dietitians Association of Australia and Sports Dietitians Australia.
Rebecca’s books are currently full and as such, is unable to take on new clients at this time.
SPECIAL INTERESTS:
- Sports nutrition
- Disordered eating / eating disorders
- Developing athletes
- Race day / competition nutrition
Kelsey Tobin
As a triathlete herself, Kelsey is well attuned to the relationship between nutrition and sports performance. She is passionate about sharing her knowledge and skills to help others improve their sports performance and overall wellbeing.
Since completing her Bachelor of Nutrition & Dietetics at the University of Newcastle, Kelsey has worked in a variety of sport and clinical settings, as well as currently being one of the Lead Performance nutritionists at the RAAF.
Kelsey believes in finding balance between eating for performance and simply for enjoyment. Whether you want to improve your health or on-field performance, Kelsey will work with you to teach you what foods you need to fuel your body and reach your goals.
Kelsey conducts online consultations only.
SPECIAL INTERESTS:
- Performance nutrition
- Race nutrition plans
- Relative energy deficiency in sports (RED-S)
- Bone stress injuries
Hannah Gibson
Hannah is a performance-focused sports dietitian who is committed to helping athletes get the most out of their training, competition and recovery. She works closely with individuals to deliver tailored, evidence-based nutrition strategies that are practical, effective, and aligned with their performance goals. Hannah is known for her thorough, athlete-first approach, going beyond just food plans to build strategies that actually work.
She holds a Bachelor of Nutrition and Dietetics (Honours) from the University of Newcastle and has completed the Sports Dietitians Australia course to further specialise in elite and high-performance sport. Hannah has worked with swimmers from the NuSport Performance Hub, led nutrition workshops with the Hunter Academy of Sport, and supports para-athletes through her involvement with Para Sport climbing Australia, reflecting her passion for inclusive, high-performance nutrition environments.
Whether you’re looking to optimise your fuelling, improve recovery, or gain a competitive edge, Hannah brings the expertise and commitment to help you perform at your best.
SPECIAL INTERESTS:
- Para Sports
- Under-fuelling
- Nutrient deficiencies & Injuries
Isabelle Smith
Isabelle is an experienced and passionate Sports Dietitian who is committed to helping athletes translate their hard work into tangible results through practical, evidence-based nutrition strategies. She strongly believes in the power of food to not only enhance performance, but also support long-term health and wellbeing. With a warm and approachable style, Isabelle creates a supportive space for athletes to build a balanced, sustainable relationship with food and their bodies.
Isabelle holds a Bachelor of Nutrition & Dietetics (Honours) from the University of Newcastle and has completed the Sports Dietitians Australia (SDA) accreditation, further specialising her expertise in high-performance and elite sport.
Her career spans a wide range of sporting populations, from recreational to professional level. Isabelle has worked extensively with athletes across the Newcastle and Central Coast regions, supporting them through training blocks, competition seasons, and injury recovery. Alongside her work at Nutrient Nation she provides performance nutrition support to Navy candidates within the Australian Defence Force and works with the Sydney Roosters NRL team. In addition to her clinical and performance work, Isabelle is a casual lecturer at the University of Newcastle where she supports emerging exercise and sport scientists.
SPECIAL INTERESTS:
- Under-fuelling (LEA & REDs)
- Bone Stress Injury prevention and management
- Disordered eating and Eating disorders
