Tina Sestan

Functional Medicine Coach

Nervous System Health & Mental Wellbeing | Digestive Health
Perimenopause & Menopause Coaching

WORK WITH TINA
A woman with long dark hair smiling, sitting indoors near a window with trees and houses outside.

  • Tina Sestan is a Functional Medicine Coach and Certified Sports Nutritionist with a particular passion for nervous system health, mental wellbeing and digestion. She welcomes people of all genders and life stages, helping them explore the connections between emotional wellbeing, physical health and everyday life.

    Her approach considers the whole person, recognizing that stress, life experiences, nutrition, sleep and relationships can all influence how we feel. Through personalized coaching and education, Tina helps clients better understand their bodies, recognize their needs and build practical habits that support their wellbeing.

    Tina creates a warm, supportive space where clients can feel heard as they navigate stress, changing responsibilities and life transitions. She is passionate about helping people reconnect with themselves and make room for nourishment, rest, movement and meaningful connection.

    Digestive health is another important focus of her coaching. Tina helps clients explore eating patterns, nutrition and lifestyle habits that support digestion, with an appreciation for the connections between the gut, brain and nervous system.

    She also offers Perimenopause and Menopause Coaching, with a particular interest in the emotional and mental health dimensions of this transition. She recognizes that midlife can bring changes in mood, sleep, relationships and identity, alongside hormonal shifts.

    Known for her empathetic and encouraging approach, Tina meets clients where they are. Her goal is to help people feel informed, supported and confident in making meaningful, manageable changes that fit their lives.

  • Tina has a special interest in:

    • Nervous system health and stress management
    • Lifestyle habits that support mental and emotional wellbeing
    • Digestion, gut health and the gut-brain connection
    • Navigating life transitions and reconnecting with personal needs
    • Sleep, energy and restorative routines
    • Sports nutrition and active living
    • Perimenopause and menopause
    • Group education, community connection and retreats

  • Tina’s education brings together health sciences, naturopathic medicine, functional medicine, sports nutrition and ongoing studies in counselling psychology.

    • Bachelor of Health Science, Bowling Green State University
    • Completed her naturopathic medical education at the Canadian College of Naturopathic Medicine in 2010
    • Applying Functional Medicine in Clinical Practice (AFMCP), Institute for Functional Medicine
    • Advanced sports nutrition training through the International Society of Sports Nutrition
    • Completed BRIA’s Menopause Mental Health Provider Training, Spring 2026
    • Currently pursuing a Master of Arts in Counselling Psychology at Yorkville University

    Tina draws on this background in her coaching work, supporting clients through education, reflection and practical lifestyle changes. Her ongoing graduate studies reflect her deep interest in mental health and the connections between emotional wellbeing, life experiences and physical health.

  • Born and raised in Kitchener-Waterloo, Tina is a mother of two boys, a former NCAA Division I swimmer and a longtime endurance athlete. She enjoys triathlon, trail running, hiking and exploring the outdoors with her family.

    Alongside her love of movement, Tina values quieter moments through yoga, reflection and time in nature. She has a deep interest in the connection between people, community and the land, and enjoys learning about traditions and practices that invite us to slow down and reconnect with ourselves.

    Her own experiences of motherhood, life transitions and balancing responsibilities shape the warmth and understanding she brings to her coaching. She believes wellbeing includes space for joy, meaningful connection, rest and the things that make us feel most like ourselves.

  • Tina is not currently accepting patients. If you're looking for care, Dr. Leizl, ND is currently welcoming new patients.

    To enquire about services, please contact the clinic:

    Email: hello@fmuptown.com
    Phone: (519) 745-1600

    If you are emailing to request a booking, please include your best contact number.

Classes + Events
The Stress Connection: Your Nervous System, Mood & Digestion [Webinar]
Oct 7
The Stress Connection: Your Nervous System, Mood & Digestion [Webinar]

Sometimes stress shows up in our thoughts. Other times, we feel it in our body. Join Tina for a free live masterclass on the stress connection: your sleep, mood & gut health and simple tools to feel more at ease.

Read more →