Our Practitioners

Christina Camilleri
Founder & Director

Christina Camilleri is described as “one of the best kept secrets of the Okanagan”, well-known by reputation amongst health professionals in the field of nutrition, disordered eating/eating disorders. Many colleagues in various health disciplines around the province speak highly of Christina’s professional contribution and expertise. With over 30 years of clinical nutrition and behavioral counseling experience, extensive training and teaching opportunities, Christina’s vast knowledge and leadership is evident in all she does.

Christina graduated in 1987 from the University of Guelph with a Bachelor of Applied Science, Honors in Applied Human Nutrition. In 1988 she attended her clinical dietetic internship at Victoria Hospital, London, Ontario. During her internship, she focused on electives that included disordered eating, sports nutrition and cardiology. In June 1988, Christina was hired as a clinical dietitian for the Western Counties Wing War Veterans at Parkwood Hospital in London, Ontario. In working closely with this patient population, it was evident to Christina how the trauma of war correlated strongly with the veterans’ quality of life. As a clinical dietitian, her focus was to manage symptoms of illness through therapeutic meal plans. However, this was only scratching the surface. How do you support someone in trauma to make the necessary dietary changes to improve wellness and quality of life if they really don’t care or feel they have anything to live for?

As a new graduate and someone who had her own life experience with trauma, Christina’s energy and passion to help others sustain a love of life no matter the tragedies or circumstances, prompted her continued education towards behavioral counseling. At Parkwood Hospital, Christina worked closely with the multidisciplinary team. This team consisted of medical doctors and pastoral care, recreational and horticultural therapy, and nutritional support for prevention of illness, disease management and early intervention of disease. This unique treatment approach transferred into her private practice at the Fitness Forum, a high performance fitness facility where she worked with elite athletes, fitness enthusiasts, and individuals suffering from disordered eating and eating disorders.

Sports Nutrition has always been one of Christina’s passions, following naturally from her own enthusiasm for many sports both competitive and recreational. Christina is dedicated to helping athletes become the best that they can be in their sport, and she has often been a pivotal member of an athlete’s support team. She has worked with major league baseball players, CFL football players, junior hockey players, elite ski racers, junior varsity basketball, volleyball, soccer, rugby players, triathletes and more. To be a part of any athletes’ journey is a privilege and honor. The combination of nutritional and behavioral counseling is essential for every individual who pursues the athletic dream!

In 1991, Christina relocated from Ontario to the Okanagan Valley where she used her unique nutritional, behavioral counseling and educational background to support the development of disordered eating programs in both Kelowna and Vernon. Christina became a strong advocate for client centered care and professional development of multidisciplinary teams. She worked tirelessly to ensure that clients and their families could stay closer to home during their treatment process. Liaison with the multidisciplinary hospital team was necessary in developing inpatient eating disorder protocols for youth on pediatrics and adults on psychiatry. Christina’s drive to remain current with best practices through varied educational opportunities, committees, conferences, literature searches, media interviews, international presentations, mentoring and training opportunities contributed to some of the best multidisciplinary outpatient programs in the province.

Since 1992, as founder of Healthy Essentials, Christina’s private practice has remained under the radar, receiving referrals by reputation and word of mouth. The flexibility of being a business owner allowed Christina to enjoy the benefits of raising her family while fulfilling her desire to work in her specialized fields of practice both at her home office and in Vernon. In 2013, Christina resigned after 22 years as Coordinator of the CMHA (Canadian Mental Health Association) North Okanagan Eating Disorder Program. Christina will continue her leadership role in the community as Director of Healthy Essentials Clinic (HEC); an integrative team of experienced professionals who  provide person-centered care for clients and families who seek our unique services. Christina will continue to mentor, train, educate and consult with professionals to help lead the way in community health. She looks forward to growing and building Healthy Essentials Clinic into a larger community of care providers who will help to make her dream of serving all people who desire health, wellness and personal excellence a reality!

For more information on Christina’s professional experience you can review Christina’s CV (curriculum vitae)

Heather Derry BSc, MD, FRCPC
Child & Adolescent Psychiatrist

Graduated from McMaster University in 2006 in Medicine and pursued Psychiatry residency training at the University of Toronto, graduating in 2011. Heather has been working
in Kelowna, BC from 2011 to present. Heather specializes in Child and Adolescent Psychiatry, and Eating Disorders. When asked why she wants to work for Healthy Essentials Clinic Heather says, “I love to be part of a multidisciplinary team and look forward to incorporating holistic
modalities to provide comprehensive care to clients and families”. 

Hobbies: Skiing

Dr. Sergei Reznikov,

Dr. Sergei Reznikov is a graduate of Queen’s University School of Medicine, and completed his pediatric residency training at Memorial University of Newfoundland. Prior to joining Healthy Essentials Clinic, he practiced pediatrics in Ontario and Alberta, in both clinic and hospital settings. He has also worked as a clinical lecturer at the University of Calgary.
As a community pediatrician, Dr. Reznikov is experienced at managing various health concerns, including medical, developmental, and Mental health conditions. He is currently accepting patients aged
0 through 17 via referral from their primary care provider.

Hobbies: Outside of work, he is an avid outdoorsman – he enjoys kayaking, hiking, and backcountry camping. He also likes traveling, training in the martial arts, and playing video games (albeit not as well as his patients).

Linda Brattinga, B.Ed, Masters of Education in Psychology and Counselling
HEC Counselor

Linda grew up and graduated in Devon, Alberta. She moved to BC right after graduation and settled in Richmond initially before moving to Lake Country in 1992, and now calls this home.

Linda Graduated with her Counselling Degree in 2016 and has been working in the field since, specializing in teens / adolescents, women of all ages (50+), job related stress and fatigue, relationship issues and families of special need children.

When asked why she wants to work for Healthy Essentials Clinic Linda says: “I believe in what the clinic stands for, a holistic approach to healing. I feel I have a great deal to offer the clinic and look forward to being a part of a team that will make a difference when it comes to mental illness”.

Hobbies: Camping and hiking

Shailyn Waites
B.A in Psychology and Thanatology, MSW
HEC Counselor

Originally from Leamington Ontario, but has been living in Kelowna since 2019 to complete her Master’s of Social Work. Shailyn started in counseling in 2017 where she co-facilitated a survivor’s of suicide loss support group, and volunteered on the crisis line for a few years in Ontario. In 2020, Shailyn received a 16-month student practicum where she counseled youth and families with a variety of mental health challenges, while working at an organization that strictly focused on addiction recovery with youth and adults.

Shailyn specializes in working with adolescents, adults, and families working through a variety of mental health challenges including grief and loss, anxiety, depression, addictions, and trauma. Shailyn uses play/art therapy, collaborative proactive solutions model, mindfulness, cognitive-behavioural therapy, and is currently working on completing her certification in emotion-focused therapy.

When asked why she wants to work for Healthy Essentials Clinic Shailyn says, “This clinic provides an interdisciplinary collaborative approach that allows clients to be seen as a whole person which really resonates with my holistic perspective as a social worker. Also, from the moment I stepped into HEC it was a welcoming and warm team environment that made me feel supported and valued as a person and as a counsellor.”

Hobbies: Camping, Hiking, Hockey, Golf, Tennis, Working-out, and Reading. In my hockey career, I was a varsity athlete for a top-rated women’s university team placing first in all of Ontario and second in all of Canada, where I demonstrated leadership as a captain for three years.

Janet Sprague BHScPT
Certified Lymphedema Therapist CLT-LANA, YTT200, Registered Physiotherapist

Born and raised in Windsor Ontario, graduating with her BHScPT from Mohawk-McMaster University, Janet has been working as a physiotherapist since 1987.

While Janet has been working as a physiotherapist for many years, she specializes in breast cancer rehab, cancer rehab and lymphedema.

Why work for HEC: ” I’m excited to offer physiotherapy to all cancer patients and lymphedema patients in the Okanagan Valley as it is currently an under serviced area”.

Hobbies: Walking and running in the trails with my golden retriever

Tammy Hart,
Medical Office Administration

Tammy specializes in many areas. She brings forward her ability to connect with people, patients and practitioners to ensure quality care and needs are met.

Why work for HEC: “I love working at HEC. The practitioners are amazing and I want to be part of a team that supports individuals on a team based platform. I feel a part of the team. I love helping vulnerable individuals and making a difference in their experience when they are reaching out. “

Hobbies: My hobbies include paddle boarding, sand castle building, fishing, boating, hiking and camping, or simply just soaking in the sun on the beach.

Tracie Tozer,
Medical Office Administration

Originally from Kelowna and has been working as an MOA for the past two years. 

Why work for HEC: “I work for Healthy Essentials because I want to be a part of the medical team that significantly improves the life of patients and genuinely makes a difference in their lives.” 

Hobbies: Camping, fishing and dirt biking with my family.