Meet our esteemed speakers, who will be joining our stage at Gluten Free Expo Calgary 2019! Please note that speakers and presentations are subject to change, so check back frequently!

The Gluten Free Expo would not be possible without the kind support of our sponsors. A special thank you goes to these kind community supporters:


Jess Pirnak

Jess is a Registered Dietitian & Certified Wellness Coach based in Vancouver, British Columbia. She graduated from UBC’s Food Nutrition and Health program, and completed her dietetic internship with Provincial Health Services Authority after finishing a Psychology degree from SFU.

Jess is passionate about education, prevention and creating a healthy community. She is an advocate for the power of food and its connection to health. With an extensive background in retail dietetics Jess understands the natural food sector and the importance of a sustainable food system. She is also the in-house dietitian advisor for the Canadian Celiac Association – Vancouver Chapter. Her focus is in plant-based eating, celiac disease and gut health.

Visit Jess’s Website / Twitter / Instagram


Rika Mansingh

Rika is a Registered Dietitian with over 16 years of experience in the dietetic profession. She is currently working as a Clinical Dietitian in Long Term Care and as a Consultant Dietitian in Abbotsford, BC.

She has always had an interest in nutrition and the effects of nutritional practices on health and well-being, and is committed to supporting, educating and motivating people to achieve their nutrition goals for improved overall health.

Rika has worked with a variety of clients over the years, providing dietary intervention for many health conditions, and offering individual/group nutrition counseling sessions to clients with food related illness, and those interested in health promotion and disease prevention.

Rika has written articles for newspapers in Canada, and has written newsletters, articles for magazines and newspapers, and has been broadcast on radio shows and satellite TV in South Africa.  She is also the author of “The Empowered Mind Diet Equation”

Visit Rika’s Website


Nadine Grzeskowiak

Nadine Grzeskowiak, RN BSN CEN is a nurse specializing in celiac disease, non-celiac gluten sensitivity and intestinal health. She is an expert consultant, professional speaker, author, podcaster and research enthusiast. After 15 years of nursing experience in emergency, trauma and critical care, Nadine founded three successful independent Nurse owned and operated businesses, RN On Call, Inc., Gluten Free RN and Celiac Nurse Consulting in February 2007.

Nadine has delivered numerous lectures and seminars internationally, consults with individuals and families, has written Dough Nation: A Nurse’s Memoir of Celiac Disease from Missed Diagnosis to Food and Health Activism and is co-authoring a textbook on celiac disease. Nadine also leads international gluten free and Paleo travel groups.  

Nadine enjoys spending time with her family, friends, knitting, hiking, mountain climbing, reading, cooking and eating excellent meals and traveling all over the world.

       Visit Nadine’s Website


Shelley Case, RD

A leading international expert on the gluten-free diet, Shelley is a registered dietitian, author, speaker and consultant with more than 35 years’ experience. She is a member of the Medical Advisory Board of the Celiac Disease Foundation and the Canadian Celiac Association’s Professional Advisory Council.

Shelley is a sought-after media source, conducting hundreds of radio, television, newspaper and magazine interviews throughout North America such as the NBC Today Show, CNN, CBC, CTV, Global TV, Wall Street Journal, WebMD, National Post, Globe and Mail, Food Business News, Chatelaine and Canadian Living.

As a popular speaker, she delivers numerous presentations at medical, nutrition, celiac and food industry conferences throughout North America.  Shelley’s best-selling book Gluten Free: The Definitive Resource Guide is highly recommended by health professionals, celiac organizations, consumers, the food industry and media.

In recognition of Shelley’s major contributions to the field of celiac disease and dedication to educating health professionals and individuals with celiac disease and gluten sensitivity, she was awarded the Queen Elizabeth Golden Jubilee Medal.

In addition to her food and nutrition expertise, Shelley has celiac disease and understands the challenges of following a strict gluten-free diet for life. Shelley and her family live in Calgary, Alberta.

       Visit Shelley’s Website | Gluten Free: The Definite Resource Guide Facebook


Marcia Bruce

Marcia Bruce is a local blogger who is passionate about raising awareness of celiac disease and supporting gluten free businesses that make the lives of people with celiac disease better.

Marcia and her husband were both diagnosed with celiac disease within months of each other after being married for almost 20 years! Together they have three children. Marcia is also on the Board of Directors for the Calgary Chapter of the Canadian Celiac Association where she hopes to make an impact to the celiac community. More information on Marcia and her family’s gluten free journey can be found at www.myceliacfamily.com

Visit Marcia’s Website | Facebook