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 - Sunday CLOSED

Toronto 416-807-9337



Ashley Leone Toronto Registered Dietitian

Ashley Leone, Registered Dietitian

Ashley is a Sports Dietitian and Owner of Gazelle Nutrition Lab. Ashley provides nutrition advice and plans to athletes and everyday active people alike. Her goal is to help fuel your inner athlete and put good sense back into eating. Ashley is an enthusiastic and knowledgeable nutrition specialist, and has been a Registered Dietitian for almost 20 years.

Additionally, Ashley acts as the In-House Dietitian for the feel-good B corporation, Lucky Iron Fish, and as the Nutrition Lead for the Transition to Clerkship for University of Toronto medical students.

Ashley has worked at St. Michael’s Hospital, and The University of Toronto, as well as in private clinics. She has worked as nutrition specialist and educator and has published studies in energy needs, body composition, and obesity.

Positive and motivational interviewing is known to support dietary change.  Ashley uses these techniques and offers diet analysis and food and hydration planning around exercise.

Above all, Ashley is a sports lover with a background in rowing, track, and cross-country running. An avid runner Ashley has completed several marathons, including Toronto, New York, Boston and Chicago, and many half-marathons, including Toronto, Ottawa, and Montreal. At present, Ashley enjoys running and skiing and cheering on the other athletes in her life.

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.
  • 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).


reuby staviss

Reuby Staviss

Currently a Health Studies student at Queen’s University, Reuby has always had a passion for sports and nutrition and hopes to pursue a Masters degree in Sports Dietetics. She has participated in swimming, basketball, running and snowboarding for many years which has strengthened my desire to work with athletes. She has always been interested in the human body and how to properly fuel it to keep up with athletic lifestyles and for that reason she is so happy to be working and learning with Ashley.


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.

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.