Welcome to Gazelle Nutrition

Working Hours
Monday 09:00 - 17:00 EST
Tuesday 09:00 - 17:00 EST
Wednesday 09:00 - 17:00 EST
Thursday 09:00 - 17:00 EST
Friday Closed
Saturday Closed
Sunday Closed

Monday & Thursday 9:00 - 17:00 EST, Friday by Appointment

Toronto 416-807-9337



Thanks so much for showing an interest in Gazelle Nutrition Lab! I am Ashley Leone, a Sports Dietitian and the Owner of Gazelle Nutrition Lab. I provide nutrition advice and plans to athletes and everyday active people alike. My goal is to use my over 20 years of experience as a Registered Dietitian to help fuel your inner athlete and put good sense back into eating.

My previous work has included roles as a nutrition specialist and educator at St. Michael’s Hospital, The University of Toronto, Lucky Iron Fish, and at private clinics. I have also published studies on energy needs, body composition, and obesity.

At Gazelle Nutrition, I specialize in nutrition for endurance athletes, muscle gain, adolescent athletes and military duty. I also provide guidance for a range of other sports and consult for sports-related food companies. I offer both team and individual diet analysis and food and hydration planning around exercise. Finally, I believe that access to credible sports nutrition advice should be simple.  So, I offer science-backed blogs on my site, as well as links to other useful websites to help you determine your best nutrition strategy.

I look forward to helping you optimize your sports performance with nutrition.


Thanks for checking us out!


Registered Dietitian, MSc, IOC Diploma (Sports Nutrition), CDE (Certified Diabetes Educator)


Education and Affiliations

  • Bachelor of Science, Human Ecology (Nutrition), The University of Western Ontario.
  • Bachelor of Science, Biology, The University of Western Ontario.
  • Master of Science, Nutrition (Energy Expenditure), The University of Toronto.
  • IOC (International Olympic Committee) Diploma in Sports Nutrition (2018).
  • Certified Diabetes Educator (2014).
  • ISAK Level 1 certified. ISAK certification ensures skillful body composition testing and analysis.
  • College of Dietitians of Ontario member.
  • Dietitians of Canada member.
  • Sports Nutrition Network member, Dietitians of Canada.
  • PINES member (Professionals in Nutrition for Exercise and Sport).


Emily Ng

Emily Ng

Emily Ng is currently a student studying in the Food and Nutrition program at Ryerson University. Growing up Emily participated in sports and being active, which set the foundation for her passion for living an active lifestyle. Out of this stemmed her interest in nutrition – and the impacts that the nutrition can have on both the body and performance. This newfound interest inspired Emily to further her education regarding the matter, and learn how to be able to apply her knowledge.

Sydney Grier

Sydney Grier

Sydney is currently an undergraduate student in the Nutrition and Food program at Ryerson University, with a goal of becoming a Registered Clinical Dietician. She has developed a great passion for food and nutrition and is interested in learning how to use food to both heal and fuel the body. As a competitive cross country and track & field runner, athletics have introduced her to nutrition’s significant impact on an athletes physical performance and mental well-being. Sydney is very enthusiastic to work alongside Ashley to enhance her learning in this field.

Bianca Cordeiro

Bianca Cordeiro

Bianca is a student and dietetic intern in the University of Guelph’s Master of Applied Nutrition program. She has a passion for sports nutrition and exercise and is a certified personal trainer. She has experience within nutrition education and counselling and enjoys guiding individuals toward their goals. Her interest lies within nutrition for improved athletic performance, recovery, and muscular hypertrophy. She is excited to be working alongside Ashley during her dietetic internship with Gazelle Nutrition Lab.


Claudia Aronowitz

Claudia Aronowitz

Claudia is a well-regarded coach and mediator who supports her clients through change and transformation. Claudia has a background in nutrition and public health but after becoming a breast cancer survivor shifted her focus and trained at the Coaching Training Institute. Today, Claudia runs a successful coaching and speaking business.

Danya Ossip-Richmor

Danya Ossip-Richmor

Danya is a former senior kindergarten teacher who stayed home to raise my two children. She studied exercise at night at Ryerson and certified as a personal trainer. She continued on to become a certified yoga instructor and a Lululemon ambassador. She then taught various exercise and parenting classes all over the city. Ten years ago, she built her own studio, Being the Best You Training, working one-on-one with clients looking to “feel good”. She quickly came to the realization that she was much more beneficial as a health and lifestyle coach. Danya is a lifelong lover of learning and devourer of all of the latest research on exercise, nutrition, parenting and lifestyle.

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