Our Team


Sasha High MD FRCPC

Dr. Sasha High is the Founder and CEO of the High Metabolic Clinic. She was born and raised in Ottawa, Canada. She first undertook a Bachelor of Sciences from the University of Ottawa then completed her medical doctorate (MD) and Internal Medicine residency (FRCPC) at the University of Toronto. She is certified as an American Board of Obesity Medicine (ABOM) diplomate and holds a Lecturer appointment with the University of Toronto. Dr. High has been practicing bariatric medicine since 2013.

Dr. High has a special interest in nutrition and mindset. She is a huge proponent of personal development and loves empowering people to thrive in their life by transforming from the inside out. She is a certified Life Coach from The Life Coach School, and has additional training in cognitive behavioural therapy (CBT) and acceptance commitment therapy (ACT). 

You can find her online on Youtube and Instagram, or listen to her on the High on Life Podcast.

Dr. High is a wife and mother of three young children. In her spare time, she enjoys running with 3 kids in one stroller and kitesurfing with her husband. 


Sharon Sadry MD FRCPC

Dr. Sadry is an Endocrinologist who is passionate about combining her expertise in the endocrine system with her interest in mindset coaching to manage chronic disease, motivating patients to live their most healthy life.

Dr. Sadry completed her undergraduate, medical degree and Internal Medicine training at the University of Toronto. She went on to complete her fellowship in Endocrinology and Metabolism at the University of Toronto where she served as Chief Resident. Subsequently she went on to pursue a Masters in Healthcare Quality from Queen's University. She has published in the area of obesity in Nature Reviews Endocrinology.

In her free time, Dr. Sadry focuses on building meaningful connections with her friends and family. She loves to spend time outdoors in nature, to stay active, and to explore music, food and culture. She is in a choir of female physicians. Her two young children keep her on her toes and are a constant reminder to appreciate all of life's beauty, big and small.

She is excited to provide virtual care at the High Metabolic Clinic, helping patients reach their goals.


Navreet Deol MD FRCPC

Dr. Deol is a board certified Endocrinologist with an interest in managing metabolic diseases, including obesity and diabetes. She completed her Internal Medicine Residency at the University of Ottawa and her Endocrinology and Metabolism Fellowship at Dalhousie University.

She devotes her work to preventing chronic disease, and minimizing chronic disease complications through identifying and encouraging healthy behaviours for her patients to adopt. She has undertaken additional training in Acceptance and Commitment Therapy (ACT) to help patients embark upon behavioural changes so they can achieve their best weight. Her goal is to support patients on their journey to achieve their healthiest and happiest version of themselves.

Dr. Deol passionately educates other health care professionals, including family physicians, through speaking engagements and presentations. She also enjoys mentoring medical students, and currently provides mentorship through the Ontario Medical Students Association.

In her free time, she’s happiest when spending quality time with her family and friends. She also loves the Canadian outdoors. You can find her exploring and hiking new trails and biking in her spare time.


Nathalie Ranger MD CCFP (AM) ABOM

Dr. Nathalie Ranger is a primary care physician providing psychotherapy to support sustained lifestyle change in treatment of obesity and related metabolic conditions. She completed a Bachelor of Science in Psychology at Western University, and subsequently earned her medical doctorate (MD) at McMaster University. She completed her family medicine residency at Queen’s University, followed by an addiction medicine fellowship in the University of Toronto PGY3 Enhanced Skills program. She is certified by the College of Family Physicians of Canada, with a Certificate of Added Competence in Addiction Medicine (CCFP (AM)). Dr. Ranger is also a staff physician in the Addiction Medicine Service at Homewood Health Centre. 

Following her passion for mental health, goal-oriented behaviour change, and pursuit of a meaningful, healthy lifestyle, Dr. Ranger has expanded her practice to utilize psychotherapeutic techniques to support sustainable lifestyle change. She has gained valuable knowledge through obesity medicine mentorships and ongoing medical education. She is certified as an American Board of Obesity Medicine diplomate. 

In her spare time, she enjoys spending time with family and friends, staying active, and experimenting with nutritious baking recipes. 


Nathalie Jennifer Fink MD FRCPC

Dr. Jennifer Fink is a psychiatrist who specializes in psychotherapy. She completed her undergraduate degree in Life Science at Queen’s University and then completed her medical doctorate and psychiatry residency at the University of Toronto.

She has an online private practice where she integrates evidence-based modalities including CBT, DBT, mindfulness, psychodynamic therapy and medication management. She has done research in the area of burnout and spirituality in medicine and is passionate about providing a comprehensive approach to patient care. 

Dr. Fink is a mom of 2 and loves to spend time with her family and to focus on health, wellness and personal development.


Marie-Rose Phaneuf MD FRCPC

Dr. Marie-Rose Phaneuf is a psychiatrist based in Ottawa. She completed an undergraduate degree in Health Studies (B.Sc.) at the University of Waterloo, a master’s degree in Population Health (M.Sc.) at the University of Alberta, and then returned to Ottawa for medical school (MD) and residency training in psychiatry (FRCPC).

Dr. Phaneuf currently works as a staff psychiatrist at Hôpital Montfort, focussing primarily on outpatient psychiatry. As the medical director of an eight-week day treatment program, she and her team use elements of Cognitive Behavioral Therapy (CBT), Dialectical Behaviour Therapy (DBT), and Mindfulness to help people develop the skills to live a healthy, meaningful life.

She has a special interest in helping people strive for balance and happiness, using varied psychotherapy techniques to work towards sustainable change in their everyday life.

She loves cooking and spending time with family and friends. She also enjoys staying active and being outdoors. Family hikes, boardgames, and cross-country skiing in winter are some of her favourite weekend activities.


Sheliza Lalani MD MPH ABIM

Dr. Sheliza Lalani is a board certified Endocrinologist and Internist with an interest in diabetes, obesity and nutrition.

She completed her Internal Medicine Residency and Fellowship in Endocrinology and Metabolism at the George Washington University in Washington, DC. She has a Masters of Public Health from Boston University where her thesis focused on the impact of nutrition on chronic disease and food security. She was born and raised in Toronto and is excited to be practicing back at home.

She has taken additional courses including the Yale Happiness Course and training in Acceptance and Commitment Therapy to help her patients achieve their best life.

She enjoys spending her free time with family and close friends. You can also find Sheliza out for a run, slowing down with her yoga practice or curled up on the couch catching up with her latest book club selection.


Catherine Barrett MD FRCPC

Dr. Barrett is a board-certified Endocrinologist. Originally from Ottawa, Dr. Barrett completed her undergraduate degree in Medical Sciences at Western University. She met her husband, now a practicing family physician, while completing her medical doctorate (MD) at the University of Ottawa. She happily moved back to London, Ontario to complete her Internal medicine training (FRCPC) and fellowship in Endocrinology and Metabolism at Western University.

Dr. Barrett has been seeing patients in her community Endocrine practice since 2017 where she discovered a passion for helping patients make meaningful and sustainable behavior changes. Early on she realized that many of her patient referrals were experiencing symptoms and/or complications from untreated obesity as a chronic disease. In order to support her patients better, Dr. Barrett has pursued additional training in the area of Acceptance Commitment Therapy.

In her spare time, she is busy with her two young children exploring new parks and trails. With two picky eaters, Dr. Barrett understands the challenge of meal time. She enjoys physical fitness and aims to incorporate movement into her daily schedule.

Dr. Barrett is excited to join the High Metabolic Clinic where she will be providing virtual care to patients with elevated weight and obesity.


Maral Nadjafi MD FRCPC

Dr. Nadjafi is a General Internist with 10 years of experience as a hospital physician managing chronic diseases such as diabetes, high blood pressure, and heart disease. She is passionate about coaching her patients towards leading a healthy lifestyle, managing their weight, and preventing and treating chronic illnesses.

Dr. Nadjafi completed her undergraduate, medical degree and Internal Medicine training at the University of Toronto where she served as the Chief Medical Resident. Dr. Nadjafi is an Assistant Professor at the University of Toronto and enjoys her role as an educator.

She is a mother of two, a runner, a workout enthusiast, an amateur home cook, and an advocate for healthy lifestyle.

She is excited to provide excellent compassionate care at the High Metabolic Clinic, helping patients reach their weight goals and lead healthier lives.


Catherine Lin Registered Dietitian

Catherine obtained her Bachelor of Science in Nutritional Sciences in Dietetics from McGill University in Montreal. During her internship training, she had the opportunity to work in various settings including hospitals, long term care centres, and community workshops. She has facilitated grocery tours, cooking workshops and given presentations on different nutrition topics. She specializes in obesity management and has experience counselling patients with metabolic diseases. Catherine works collaboratively with patients to develop a personalized plan for managing obesity and associated conditions. She is passionate about helping patients achieve a healthy and sustainable lifestyle. She is currently a member of the College of Dietitians of Ontario, Dietitians of Canada and a Certified Diabetes Educator.

In her spare time, she enjoys running, hiking, cooking, and learning to dragon boat.


Brianna Bavota Registered Dietitian

Brianna comes to High Metabolic Clinic with a wealth of knowledge and experience in the field of dietetics and obesity medicine. Part of her motivation to take a stronger interest in nutrition stems from her education at the University of Guelph where she completed a Bachelor of Applied Science in Human Nutrition. She continued to pursue her passion at St. Michael’s Hospital in Toronto where she took on a clinical approach to nutrition helping individuals with a variety of chronic and metabolic diseases.

As a Registered Dietitian, Brianna understands that obesity management is more than just the numbers on the scale, it’s about improving the overall health of individuals while guiding them towards their “best” weight. Brianna provides compassionate and inclusive care to clients that respects their experiences, culture, and personal preferences. She helps clients make informed, evidence-based decisions about their health through an individualized coaching approach, centered around your needs and goals. More than anything, Brianna enjoys sharing her passion for healthy eating by working one-on-one with you. 

 “The food you eat can either be the safest and most powerful form of medicine, or the slowest form of poison” – Ann Wigmore


Tedi Nikova MPH, Registered Dietitian

Tedi obtained her Master’s of Public Health in Nutrition and Dietetics from the University of Toronto. During her internship, she had the opportunity to work at North York Generals’-Centre for Complex Diabetes Care, where she applied her skills in nutrition therapy for patients diagnosed with diabetes, obesity, and other metabolic diseases. Tedi began her dietetics career in the Obesity field, where she applied nutrition therapy combined with behavioural techniques to motivate her patients in achieving a dietary pattern, and lifestyle, that is sustainable and aligned with her patients’ values.

Tedi, additionally, obtained her Specialization in Women’s Health from the Women’s College Hospital, during her master’s degree. Tedi has a passion, and commitment in educating women on the large role of nutrition in common conditions including PCOS, and hypothyroidism. Tedi’s goal is to aid women in gaining their energy, confidence, and ambition, so her patients can show up to life as their best self! 

Tedi works collaboratively with patients utilizing  motivational counselling, and cognitive behavioural techniques. Tedi is a certified Craving Change Facilitator.

Tedi is additionally a recipe developer, with a niche in creating lower carbohydrate sweet treats! She has a huge passion, and commitment to make healthier desserts taste great!


Pamela Rodrigues, Fitness Trainer

Coach Pam has been a fitness trainer, healthy weight loss coach and health and wellness specialist for the past 4 years but has an educational background in psychology and is passionate about people, building relationships and helping change the behaviors associated with choosing and maintaining a healthy lifestyle. Pam's positive energy has been the secret sauce to the success of her clients as she not only motivates but inspires adopting tools to self motivate and stay disciplined. Her knowledge, skills and experience in the health and wellness industry is sure to keep you feeling safe and in good hands while she takes you through a variety of workouts always keeping in mind the beginner to the advanced fitness enthusiast. Her credentials include canfitpro certifications in personal training, group instruction and healthy weight loss coaching. She also has certifications in kettlebell and conditioning with Darby training solutions. She has several courses under her belt and considers herself well versed in nutrition, supplementation and her absolute favorite being mindset. She is completely prepped and pumped to get you equally excited about movement and a sustainable fitness lifestyle.


Sarah Asaad Office Administrator

Sarah graduated from the University of Toronto with a Bachelor of Science in Psychology. She is currently working on obtaining her Master’s degree in counselling psychology. After earning her Bachelors, she had the opportunity to volunteer at a research lab and be part of a study on gratitude. She learned about why and how people express gratitude, and how this influences relationships.

Sarah finds her role as medical administrative assistant rewarding. She enjoys helping patients with the hope of seeing others achieve happiness and meet their goals. Sarah believes that “There is no exercise better for the heart than reaching down and lifting people up.”― John Holmes

In her free time, Sarah enjoys reading novels and spending time with her family and friends.

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