About Krystal LeBreton, BSc, RD at No Sweat Nutrition

Krystal LeBreton, BSc, RD

(she/her/they/them)
Krystal is a passionate sports dietitian, seasoned ultrarunner, race organizer, and dedicated volunteer- rumored to be a wizard with tired feet at aid stations! Since running her first marathon in 2003, she has broken 3 hours in the marathon, taken on countless ultras including the Comrades Ultra in South Africa and a recent 100 miler, and become a dedicated member of the trail running community.
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Location

Ontario

Areas of Focus

Our team of dietitians all bring a strong background in sports nutrition. Here’s what each one focuses on most:
Celiac Disease
IBS
Iron Deficiency
Perimenopause
Plant-based + Vegan
Postmenopause
T1 + T2 Diabetes
Work With Krystal

Krystal blends her expertise in nutrition with her love of endurance sport, offering an empathetic perspective to the athletes she supports.

With over 15 years of experience as a certified diabetes educator, she is proficient in insulin, continuous glucose monitoring, and insulin pump technologies. Her clinical focus includes fueling before/during/after endurance sports, diabetes in sport, and nutrition across the female lifespan-including pregnancy and postpartum care. Whether you are navigating endurance sports, managing diabetes or seeking support through life’s hormonal transitions, Krystal brings a rare combination of science, lived experience and heart to every encounter.

Outside of work…

Outside of work Krystal can be found with other soccer moms at her kid’s games, chasing her two furry feline princesses, or travelling the world with her family.

Krystal's Approach

Krystal practices from a Health at Every Size (HAES) approach, prioritizing weight-neutral care that centers compassion, body trust, and client autonomy. She brings humour, empathy, and a grounded presence to her work, supported by a strong personal mindfulness practice.

Areas of Practice

  • Diabetes (T1D and T2D) and sport
  • Fuelling and hydration strategies for training, competition, and race day
  • Iron deficiency and anemia
  • Pregnancy and postpartum nutrition
  • Gastrointestinal issues including “runners stomach”, constipation, Celiac disease, and Irritable Bowel Syndrome (IBS)
  • Masters athletes, including perimenopause and postmenopause
  • Sports performance and dietary supplement recommendations
  • Vegetarian, plant-based, and vegan athletes
  • Injury recovery and rehabilitation

Professional Background

Registered Dietitian with the College of Dietitians of Ontario

Note: Krystal provides 1:1 nutrition counselling for residents of Ontario.

Education

  • Bachelor of Science from the University of British Columbia
  • Masters in Health Psychology from Trent University – qualitative thesis: Risk Perceptions for High Risk Pregnancies
  • Masters in Health Science from University of Toronto

Additional Training

  • Certified Diabetes Educator (CDE)
  • San’yas Indigenous Cultural Safety Training
  • ED for RDs: Eating Disorder Education for Registered Dietitian 1-Year Online Training
  • Well Now Learning Circle with Lucy Aphramor

Want to work with Krystal?

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