Registered Dietitians • Sustainable Weight Loss • Virtual Nutrition Counselling
Meet Our Registered Dietitian Team
Diet Redefined is a team of Registered Dietitians helping busy professionals to lose weight sustainably, improve their relationship with food, and build nutrition habits that fit real life.
Our dietitians support clients across Vancouver, British Columbia, and Ontario with evidence-based nutrition counselling, custom meal planning, accountability, gut health support, blood sugar management, and long-term weight loss coaching.
Why Work With A Registered Dietitian?
Nutrition advice is everywhere. Our role is to help you turn that information into a realistic plan that works for your body, schedule, preferences, health history, and goals.
Evidence-Based Nutrition
Our team uses a science-based approach to support sustainable weight loss, blood sugar, cholesterol, digestion, energy, and overall health.
Real-Life Coaching
We build strategies for restaurants, travel, long workdays, family life, cravings, stress eating, and social events – not just ideal weeks.
Personalized Support
Your plan is tailored to your goals, health history, preferences, schedule, culture, budget, and the level of accountability you need.
Helen Tieu, RD, MAN, CDE
Founder & Registered Dietitian
Helen is the founder of Diet Redefined, a Registered Dietitian who empowers busy professionals to lose weight in a sustainable way – without restricting food or their lifestyle.
After working with hundreds of high-achieving professionals, she began to notice the same pattern. They weren’t struggling because they lacked discipline. They struggled because their approach was cookie-cutter, restrictive, and simply didn’t fit their lifestyle. The more they restricted, the more it backfired in the long run.
Our goal is not to help you to lose weight for 6 months – and then regain it all back.
Our goal is to help you to lose weight for life. So you don’t just learn how to follow a meal plan. You understand how to make informed food choices in real life – while still being able to eat out, travel, enjoy carbs, and have a social life. All while progressing towards your weight loss goals and maintaining a healthy relationship with food.
Yes – you can have your cake, and eat it too (literally!)
If you’re tired of putting yourself last, and feel ready to invest in yourself to make lasting lifestyle changes – let’s connect.
Credentials:
RD – Registered Dietitian – College of Dietitians of British Columbia
MAN– Master of Applied Nutrition Degree – University of Guelph
CDE – Certified Diabetes Educator – Canadian Diabetes Educators Certification Board
BSc – Bachelor of Science in Human Nutritional Sciences – University of Manitoba
Leeauna Duchesne, RD
Registered Dietitian | Sustainable Weight Loss & Gut Health
Leeauna is a Registered Dietitian who helps busy professionals take control of their weight, energy, and digestion – without the stress of restrictive diets. Whether your goal is sustainable weight loss, eating for fitness, or finally finding relief from digestive issues, she uses a practical, science-based approach to help clients get results that last.
Leeauna specializes in gut health and chronic disease management, including IBS, IBD (Crohn’s and ulcerative colitis), chronic constipation and diarrhea, acid reflux, fatty liver disease, and H. pylori. She also uses a functional nutrition lens to get to the root of symptoms – and create a clear path forward.
If you’ve ever felt frustrated with food sensitivities, bloating, or the never-ending “what’s for dinner?” cycle, she gets it – she’s helped hundreds of clients turn that around with personalized strategies that work in real life.
Leeauna has completed advanced training in Mastering Gut Healing: Effectively Applying the 5R Protocol, and collaborates with F45 gyms to support members in using nutrition to fuel performance, recovery, and long-term results.
When she’s not working with clients, you’ll find her cooking up new recipes, brainstorming meal ideas, getting in a workout at F45, or walking through nature with her dog Jack.
If you’re ready to feel confident, energized, and at ease in your body again – let’s connect!
Credentials:
RD – Registered Dietitian – College of Dietitians of British Columbia & Ontario
BASc – Bachelor of Applied Science in Nutrition and Food – Toronto Metropolitan University
How Our Team Can Help
Our Registered Dietitians support clients with weight loss and related nutrition concerns using a practical, personalized, evidence-based approach.
- Sustainable weight loss coaching
- Custom meal planning
- Emotional eating and stress eating support
- Restaurant, travel, and social-event strategies
- Vegetarian and plant-based nutrition
- Blood sugar, diabetes, and insulin resistance
- Gut health, IBS, bloating, constipation, and reflux
- PCOS, menopause, cholesterol, and blood pressure
- Online nutrition counselling
- Food sensitivity and intolerance support
Frequently Asked Questions
Who Are The Dietitians At Diet Redefined?
The Registered Dietitians behind the Diet Redefined team are Helen Tieu and Leeauna Duchesne. The team supports clients with sustainable weight loss, meal planning, gut health, blood sugar, chronic disease management, and realistic nutrition habits.
Do I Work With A Registered Dietitian?
Yes. Diet Redefined’s client support is provided by Registered Dietitians who use an evidence-based approach to nutrition counselling, weight loss coaching, meal planning, and health-related nutrition support.
Can I Choose Which Dietitian I Work With?
During your complimentary session, the team can discuss your goals, preferences, health concerns, and the best fit for your support. The goal is to match you with the right dietitian and program structure for your needs.
Do You Offer Virtual Appointments?
Yes. Diet Redefined provides virtual appointments for clients across Vancouver, British Columbia, and Ontario.
What Can Your Dietitians Help With?
The team supports sustainable weight loss, custom meal planning, emotional eating, gut health, IBS, bloating, blood sugar management, cholesterol, PCOS, menopause, plant-based nutrition, nutrition for muscle gain and performance, and long-term habit change.
Ready To Work With A Registered Dietitian?
You can also explore our Weight Loss Program, Our Approach, or Dietitian Near Me page.