Gastrointestinal (GI) Nutritionists and Dietitians in Barrie, ON
I am well-versed in all chronic & acute diseases including cancer, diabetes, infant feeding/introducing solids/picky eating, eating disorders, weight management, IBS, GI issues & allergies.
I believe in making realistic and attainable goals that are specific to each client. Every nutrition plan I recommend is unique and tailored to each individual depending on their goals, lifestyles and timelines. I can teach you the tools needed to succeed in your personal nutritional goals. All sessions are done over phone or secure video.
I am well-versed in all chronic & acute diseases including cancer, diabetes, infant feeding/introducing solids/picky eating, eating disorders, weight management, IBS, GI issues & allergies.
I believe in making realistic and attainable goals that are specific to each client. Every nutrition plan I recommend is unique and tailored to each individual depending on their goals, lifestyles and timelines. I can teach you the tools needed to succeed in your personal nutritional goals. All sessions are done over phone or secure video.
After years of hormone and gut issues myself, I'm on a mission to guide women who feel stuck with their health to find and address the root causes of their health issues so that they can feel confident in the their skin.
Working 1:1, we’ll spend hours together so I can deeply understand your health history, most frustrating symptoms and current nutrition and lifestyle habits. Your protocol will be unique to your individual needs, lifestyle and where you’re at in your health journey.
After years of hormone and gut issues myself, I'm on a mission to guide women who feel stuck with their health to find and address the root causes of their health issues so that they can feel confident in the their skin.
Working 1:1, we’ll spend hours together so I can deeply understand your health history, most frustrating symptoms and current nutrition and lifestyle habits. Your protocol will be unique to your individual needs, lifestyle and where you’re at in your health journey.
Whether you’re struggling with digestive issues like IBS, managing disordered eating, or navigating weight concerns, my goal is to provide personalized, practical strategies that empower you to feel in control of your well-being.
Having personally experienced the challenges of IBS, I know how transformative it can be to understand what works for your body. My approach is grounded in evidence-based care, designed to meet you where you are and help you create lasting change—no quick fixes, just meaningful progress.
Whether you’re struggling with digestive issues like IBS, managing disordered eating, or navigating weight concerns, my goal is to provide personalized, practical strategies that empower you to feel in control of your well-being.
Having personally experienced the challenges of IBS, I know how transformative it can be to understand what works for your body. My approach is grounded in evidence-based care, designed to meet you where you are and help you create lasting change—no quick fixes, just meaningful progress.
Infants – starting solids
Children - picky eaters, allergies, growth concerns
PCOS
Fertility
Prenatal
Sports
Peri-menopause/menopause
Weight Loss
Pre-diabetes/Type 2 Diabetes
GLP-1 medications
Digestive health
Allergies/intolerances
Vitamin/mineral deficiencies
Heart/brain/bone health
Inflammation
Seniors
I look forward to working with you! I have over 20 years of experience and will help you meet your goals, one step at a time! Feel free to book a free discovery call to learn more about the services I provide.
Nutrition counselling
Genetic/DNA swab test (Nutrigenomix) for personalized nutrition (general health, sports, fertility and more)
Meal planning services
Meal planning services for childcare/daycare settings
Dietary assessment + supplement plan
Detailed nutrient analysis/report
Grocery store tour (individual or group)
Pantry makeover (virtual or in-home)
Infants – starting solids
Children - picky eaters, allergies, growth concerns
PCOS
Fertility
Prenatal
Sports
Peri-menopause/menopause
Weight Loss
Pre-diabetes/Type 2 Diabetes
GLP-1 medications
Digestive health
Allergies/intolerances
Vitamin/mineral deficiencies
Heart/brain/bone health
Inflammation
Seniors
I look forward to working with you! I have over 20 years of experience and will help you meet your goals, one step at a time! Feel free to book a free discovery call to learn more about the services I provide.
Nutrition counselling
Genetic/DNA swab test (Nutrigenomix) for personalized nutrition (general health, sports, fertility and more)
Meal planning services
Meal planning services for childcare/daycare settings
Dietary assessment + supplement plan
Detailed nutrient analysis/report
Grocery store tour (individual or group)
Pantry makeover (virtual or in-home)
We love working with individuals across the lifespan & have experience with chronic disease prevention (diabetes, heart health, cancer), women’s health (pregnancy, fertility, PCOS, menopause), infant/child/teen health (introduction to solids, feeding relationship, selective eating), special dietary restrictions, allergies/intolerances & digestive concerns.
NEW patients welcome! Do you need help managing your chronic health diseases such as diabetes, hypertension, cardiovascular disease or obesity? Is your goal to lower your high blood sugar, blood pressure, cholesterol or weight? Do you want to improve your overall relationship with food, recover from an eating disorder, boost your energy levels or feel more confident in your body? Are you overwhelmed or unsure how to introduce solids or allergens to your baby? You have come to the right place-we can help you reach your goals! We provide personalized nutrition care + meal plans tailored to your unique lifestyle & food preferences.
We love working with individuals across the lifespan & have experience with chronic disease prevention (diabetes, heart health, cancer), women’s health (pregnancy, fertility, PCOS, menopause), infant/child/teen health (introduction to solids, feeding relationship, selective eating), special dietary restrictions, allergies/intolerances & digestive concerns.
NEW patients welcome! Do you need help managing your chronic health diseases such as diabetes, hypertension, cardiovascular disease or obesity? Is your goal to lower your high blood sugar, blood pressure, cholesterol or weight? Do you want to improve your overall relationship with food, recover from an eating disorder, boost your energy levels or feel more confident in your body? Are you overwhelmed or unsure how to introduce solids or allergens to your baby? You have come to the right place-we can help you reach your goals! We provide personalized nutrition care + meal plans tailored to your unique lifestyle & food preferences.
I have experience working with clients on a wide variety of health conditions (e.g. heart health, digestive health (e.g. IBS), fatty liver disease, pre-diabetes and type 2 diabetes).
Are you ready to try a different approach with managing your health? As an Intuitive Eating Dietitian, I don't focus on portion sizes, calories, or rigid food rules. You can support your health while enjoying the foods you love! I didn’t always have a good relationship with my food and body, and I find so much value in working with my clients to let go of diet culture and make peace with their food and bodies. We'll work together to build sustainable changes that support your health goals. My aim is to help you find a comfortable balance between your health, joyful movement, and the simple pleasure of food.
I have experience working with clients on a wide variety of health conditions (e.g. heart health, digestive health (e.g. IBS), fatty liver disease, pre-diabetes and type 2 diabetes).
Are you ready to try a different approach with managing your health? As an Intuitive Eating Dietitian, I don't focus on portion sizes, calories, or rigid food rules. You can support your health while enjoying the foods you love! I didn’t always have a good relationship with my food and body, and I find so much value in working with my clients to let go of diet culture and make peace with their food and bodies. We'll work together to build sustainable changes that support your health goals. My aim is to help you find a comfortable balance between your health, joyful movement, and the simple pleasure of food.
I work virtually with motivated individuals or couples (in Ontario) who are actively trying to conceive or planning for pregnancy. They seek evidence-based information and personalized guidance to optimize their fertility and prenatal nutrition. With concerns about their current diet, lifestyle choices, or specific medical conditions, they are driven to provide the best start for their future child. They value the role of nutrition in this process and are open to making positive changes. Ultimately, their goal is to create a healthy, nurturing environment for their little one to thrive.
I work virtually with motivated individuals or couples (in Ontario) who are actively trying to conceive or planning for pregnancy. They seek evidence-based information and personalized guidance to optimize their fertility and prenatal nutrition. With concerns about their current diet, lifestyle choices, or specific medical conditions, they are driven to provide the best start for their future child. They value the role of nutrition in this process and are open to making positive changes. Ultimately, their goal is to create a healthy, nurturing environment for their little one to thrive.
More Dietitians and Nutritionists Nearby
Elke Sengmueller
Nutritionist/Dietitian, RD, RN, BASc, BScN
Newmarket, ON L3Y
Waitlist for new clients
Specialties: Digestive disorders (IBS, Crohn's Disease, Colitis, Celiac disease, Constipation, Reflux/GERD), Eating Disorders, Body Image Issues, Mental Health, Emotional Eating, Intuitive Eating, Picky Eaters, & Enteral Nutrition (tube-feeding).
ALERT: Wait list CLOSED until August. N.B.: I do NOT offer weight loss counselling. I have worked over 25 years caring for Surgery, ICU, Gastroenterology, Paediatrics (newborn to teens), Eating Disorders (all ages), and Mental Health/Addictions/Trauma clients. I use my extensive clinical experience and current evidence-based research, combined with a compassionate and non-judgmental approach, to help motivated clients improve their physical and emotional health, while mending their relationship with food. I am also a Registered Nurse, which enhances my ability to provide comprehensive care.
Specialties: Digestive disorders (IBS, Crohn's Disease, Colitis, Celiac disease, Constipation, Reflux/GERD), Eating Disorders, Body Image Issues, Mental Health, Emotional Eating, Intuitive Eating, Picky Eaters, & Enteral Nutrition (tube-feeding).
ALERT: Wait list CLOSED until August. N.B.: I do NOT offer weight loss counselling. I have worked over 25 years caring for Surgery, ICU, Gastroenterology, Paediatrics (newborn to teens), Eating Disorders (all ages), and Mental Health/Addictions/Trauma clients. I use my extensive clinical experience and current evidence-based research, combined with a compassionate and non-judgmental approach, to help motivated clients improve their physical and emotional health, while mending their relationship with food. I am also a Registered Nurse, which enhances my ability to provide comprehensive care.
If you are feeling unwell due to digestive symptoms, inflammation, fatigue, migraines, discomfort with your body and weight or mental health issues and feel that your problems may be related to food, contact me to explore how I can help you.
My main areas of expertise are digestive diseases (reflux, IBS, Crohn's, colitis and celiac), infant feeding, eating disorders in children and adults, mental health, weight management, heart health (high cholesterol, high blood pressure), anaemia and other nutrient deficiencies, vegetarian and vegan diets.
If you are feeling unwell due to digestive symptoms, inflammation, fatigue, migraines, discomfort with your body and weight or mental health issues and feel that your problems may be related to food, contact me to explore how I can help you.
My main areas of expertise are digestive diseases (reflux, IBS, Crohn's, colitis and celiac), infant feeding, eating disorders in children and adults, mental health, weight management, heart health (high cholesterol, high blood pressure), anaemia and other nutrient deficiencies, vegetarian and vegan diets.
Colleen's practice focus is all this digestive health related.
My one-on-one coaching helps you understand your symptoms, make sense of mixed advice, and create a clear, realistic plan that fits your lifestyle. You don’t need another restrictive diet — you need clarity, confidence, and someone in your corner who truly gets it.
Colleen's practice focus is all this digestive health related.
My one-on-one coaching helps you understand your symptoms, make sense of mixed advice, and create a clear, realistic plan that fits your lifestyle. You don’t need another restrictive diet — you need clarity, confidence, and someone in your corner who truly gets it.
Christine Duguay is a registered dietitian and child nutrition expert. She has over 10 years of experience helping preterm infants, babies, toddlers, children, and teenagers achieve their nutrition goals. As a mom of two energetic boys, Christine understands that feeding your child can sometimes be challenging and is here to help with realistic, evidence-based, and personal nutritional advice centered around the needs of your child and family.
Christine Duguay is a registered dietitian and child nutrition expert. She has over 10 years of experience helping preterm infants, babies, toddlers, children, and teenagers achieve their nutrition goals. As a mom of two energetic boys, Christine understands that feeding your child can sometimes be challenging and is here to help with realistic, evidence-based, and personal nutritional advice centered around the needs of your child and family.
As a Registered Dietitian I help my clients achieve a healthier lifestyle. My ideal client wants increased energy, weight loss without deprivation, less medication, improved blood cholesterol, balanced blood sugars, reduced stress levels, increased physical activity and feelings of well-being. She may have been on numerous diets and struggling with work/life balance. She has discovered that restrictive diets simply don't work. She is ready to embark on a healthy lifestyle approach. Best results with a 3 mo, 6 mo and 12 month health coaching plan.
As a Registered Dietitian I help my clients achieve a healthier lifestyle. My ideal client wants increased energy, weight loss without deprivation, less medication, improved blood cholesterol, balanced blood sugars, reduced stress levels, increased physical activity and feelings of well-being. She may have been on numerous diets and struggling with work/life balance. She has discovered that restrictive diets simply don't work. She is ready to embark on a healthy lifestyle approach. Best results with a 3 mo, 6 mo and 12 month health coaching plan.
I specialize in gut health (specifically IBS and am skilled in the low FODMAP diet), as well as Eating Disorders.
I am passionate about helping individuals make peace with food and reduce the stress around food. I believe in supporting the mental aspect of nourishment, as well as building sustainable habits to support wellness. No quick-fixes, but building a set of life-long skills to enhance your confidence with making food decisions that best support your needs. I practice using Intuitive Eating and HAES frameworks, and believe that every body shape and size is worthy. In my sessions, I incorporate body image work and tools to improve your relationship with food.
I specialize in gut health (specifically IBS and am skilled in the low FODMAP diet), as well as Eating Disorders.
I am passionate about helping individuals make peace with food and reduce the stress around food. I believe in supporting the mental aspect of nourishment, as well as building sustainable habits to support wellness. No quick-fixes, but building a set of life-long skills to enhance your confidence with making food decisions that best support your needs. I practice using Intuitive Eating and HAES frameworks, and believe that every body shape and size is worthy. In my sessions, I incorporate body image work and tools to improve your relationship with food.
In private coaching we work together to create a customized strategy to help you gain more energy so you can spend more time doing the things you love and feeling like the best possible you! We will break long term goals into smaller goals so that you not only achieve your goals, but maintain these changes and results over the long term.
In private coaching we work together to create a customized strategy to help you gain more energy so you can spend more time doing the things you love and feeling like the best possible you! We will break long term goals into smaller goals so that you not only achieve your goals, but maintain these changes and results over the long term.
I love working with individuals across the lifespan & have experience with chronic disease prevention (diabetes, heart health, cancer), women’s health (pregnancy, fertility, PCOS, menopause), infant/child/teen health (introduction to solids, feeding relationship, selective eating), special dietary restrictions, allergies/intolerances & digestive concerns.
Accepting NEW patients for phone/video sessions for people of all ages 0+. I have 20+ years of experience providing evidence-based food & nutrition advice as well as compassionate care to infants, kids, teens, adults & seniors. I will work with you to create the best possible plan to meet your food & nutrition goals. Healthy eating is not just what you eat, but also why & how you eat. I can also work with you on ensuring you develop & maintain a heathy relationship with food, while integrating intuitive eating principles & mindful eating strategies. Let’s work together to make positive & lasting changes to your health.
I love working with individuals across the lifespan & have experience with chronic disease prevention (diabetes, heart health, cancer), women’s health (pregnancy, fertility, PCOS, menopause), infant/child/teen health (introduction to solids, feeding relationship, selective eating), special dietary restrictions, allergies/intolerances & digestive concerns.
Accepting NEW patients for phone/video sessions for people of all ages 0+. I have 20+ years of experience providing evidence-based food & nutrition advice as well as compassionate care to infants, kids, teens, adults & seniors. I will work with you to create the best possible plan to meet your food & nutrition goals. Healthy eating is not just what you eat, but also why & how you eat. I can also work with you on ensuring you develop & maintain a heathy relationship with food, while integrating intuitive eating principles & mindful eating strategies. Let’s work together to make positive & lasting changes to your health.
Our dietitians have experience working with infants, children, teenagers, adults & seniors with a variety of issues like weight loss/gain, diabetes, digestive issues, infant feeding, picky eating, eating disorders, high cholesterol, allergies/dietary restrictions/concerns, vegan/vegetarian diets, celiac disease, diabetes, prenatal/pregnancy/post partum etc.
NEW patients welcome! Do you need help managing your chronic health diseases such as diabetes, hypertension, cardiovascular disease or obesity? Is your goal to lower your high blood sugar, blood pressure, cholesterol or weight? Do you want to improve your overall relationship with food, heal from an eating disorder, boost your energy levels or feel more confident in your body? Are you overwhelmed or unsure how to introduce solids or allergens to your infant or deal with picky eating? We can help you reach your goals! We also create personalized nutrition care & meal plans tailored to your unique lifestyle & food preferences.
Our dietitians have experience working with infants, children, teenagers, adults & seniors with a variety of issues like weight loss/gain, diabetes, digestive issues, infant feeding, picky eating, eating disorders, high cholesterol, allergies/dietary restrictions/concerns, vegan/vegetarian diets, celiac disease, diabetes, prenatal/pregnancy/post partum etc.
NEW patients welcome! Do you need help managing your chronic health diseases such as diabetes, hypertension, cardiovascular disease or obesity? Is your goal to lower your high blood sugar, blood pressure, cholesterol or weight? Do you want to improve your overall relationship with food, heal from an eating disorder, boost your energy levels or feel more confident in your body? Are you overwhelmed or unsure how to introduce solids or allergens to your infant or deal with picky eating? We can help you reach your goals! We also create personalized nutrition care & meal plans tailored to your unique lifestyle & food preferences.
I provide nutrition counselling in obesity management, diabetes management, digestive health, and chronic disease prevention and management.
I believe in taking a more holistic approach towards achieving health goals. I work with clients to develop a personalized eating plan that takes into account their preferences, lifestyle and unique challenges. I also work with clients towards building a healthier relationship with food and do so through phone or video sessions.
I provide nutrition counselling in obesity management, diabetes management, digestive health, and chronic disease prevention and management.
I believe in taking a more holistic approach towards achieving health goals. I work with clients to develop a personalized eating plan that takes into account their preferences, lifestyle and unique challenges. I also work with clients towards building a healthier relationship with food and do so through phone or video sessions.
Are you ready to unlock the transformative power of food for your health and well-being? I’m here to support your nutrition journey with personalized virtual consultations tailored to your lifestyle and goals. I specialize in nutrition for managing IBS, high cholesterol, high blood pressure, and cardiovascular conditions. Additionally, I offer guidance in reproductive health and fertility nutrition. Whether you're seeking to address specific health concerns or simply aiming to embrace a healthier lifestyle, I’m here to help you boost your energy, health, and overall well-being.
Are you ready to unlock the transformative power of food for your health and well-being? I’m here to support your nutrition journey with personalized virtual consultations tailored to your lifestyle and goals. I specialize in nutrition for managing IBS, high cholesterol, high blood pressure, and cardiovascular conditions. Additionally, I offer guidance in reproductive health and fertility nutrition. Whether you're seeking to address specific health concerns or simply aiming to embrace a healthier lifestyle, I’m here to help you boost your energy, health, and overall well-being.
Online Dietitians and Nutritionists
Jia Yi is an experienced Prenatal and Paediatric Dietitian with a passion for helping individuals and families achieve optimal health through nutrition. She debuted her career in a mental health institution, and later pivoted into the prenatal and paediatrics field as she discovered her passion with this clientele. Growing up in a multicultural country with many delicious cultural foods, she brings in a culturally sensitive approach in her sessions, finding the right balance for each individual. Outside of her professional experience, she has a nephew with autism. Witnessing their family dynamic first hand has greatly influenced her
Jia Yi is an experienced Prenatal and Paediatric Dietitian with a passion for helping individuals and families achieve optimal health through nutrition. She debuted her career in a mental health institution, and later pivoted into the prenatal and paediatrics field as she discovered her passion with this clientele. Growing up in a multicultural country with many delicious cultural foods, she brings in a culturally sensitive approach in her sessions, finding the right balance for each individual. Outside of her professional experience, she has a nephew with autism. Witnessing their family dynamic first hand has greatly influenced her
I love working with individuals across the lifespan & have experience with chronic disease prevention (diabetes, heart health, cancer), women’s health (pregnancy, fertility, PCOS, menopause), infant/child/teen health (introduction to solids, feeding relationship, selective eating), special dietary restrictions, allergies/intolerances & digestive concerns.
I am accepting NEW patients for phone/video sessions for people of all ages 0+. I have 20+ years of experience providing evidence-based food & nutrition advice as well as compassionate care to infants, kids, teens, adults & seniors. I will work with you to create the best possible plan to meet your food & nutrition goals. Healthy eating is not just what you eat, but also why & how you eat. I can also work with you on ensuring you develop & maintain a heathy relationship with food, while integrating intuitive eating principles & mindful eating strategies. Let’s work together to make positive & lasting changes to your health.
I love working with individuals across the lifespan & have experience with chronic disease prevention (diabetes, heart health, cancer), women’s health (pregnancy, fertility, PCOS, menopause), infant/child/teen health (introduction to solids, feeding relationship, selective eating), special dietary restrictions, allergies/intolerances & digestive concerns.
I am accepting NEW patients for phone/video sessions for people of all ages 0+. I have 20+ years of experience providing evidence-based food & nutrition advice as well as compassionate care to infants, kids, teens, adults & seniors. I will work with you to create the best possible plan to meet your food & nutrition goals. Healthy eating is not just what you eat, but also why & how you eat. I can also work with you on ensuring you develop & maintain a heathy relationship with food, while integrating intuitive eating principles & mindful eating strategies. Let’s work together to make positive & lasting changes to your health.
Gastrointestinal (GI) Nutritionists and Dietitians
What is gut health?
Gut health refers to the overall functioning and well-being of the gastrointestinal (GI) system. Key to gut health is the gut microbiome, which is the collection of healthy bacteria living in the gut. These bacteria are essential for the digestion and breakdown of food, and their health significantly impacts digestion. Poor gut health can result in symptoms such as bloating, gas, diarrhea, constipation, and general abdominal discomfort, which may indicate imbalances or issues with the gut microbiome.
Can diet help with GI issues?
Diet plays a major role in gut health, and changes in diet can often reduce or eliminate some of the symptoms associated with gastrointestinal (GI) issues. Often, GI distress is due to food intolerances or sensitivities, such as gluten sensitivity or lactose intolerance. In these cases, eliminating the problematic foods from the diet can resolve the issue. GI problems can also stem from a combination of environmental or genetic factors, such as in the case of irritable bowel syndrome (IBS). Disruptions in the gut microbiome, such as those caused by taking antibiotics, can also lead to GI issues. In both scenarios, maintaining a balanced diet as much as possible with foods that support a healthy microbiome—such as fruits, vegetables, whole grains, and probiotic foods—can often significantly reduce symptoms and improve gut health.
What are the best foods for gut health?
Maintaining a balanced microbiome is essential for gut health, and this is best achieved through a varied diet rich in fruits, vegetables, and probiotic foods. Fruits and vegetables provide essential nutrients and fiber, which nourish the beneficial bacteria in the gut. Probiotic foods, which are those that contain live bacteria, are also great for gut health. Consuming probiotic foods and drinks, such as yogurt, kefir, kombucha, and tempeh, can help support the microbiome by contributing to the diversity of bacteria within the gut.
When should I see a dietitian for GI issues?
Many people can benefit from seeing a dietitian for GI issues. In general, most dietitians are knowledgeable about what foods support gut health and may help clients choose foods that support a healthy GI system, such as fruits and vegetables high in fiber or foods high in probiotics. Dietitians may be especially beneficial to clients with known gastrointestinal concerns, such as irritable bowel syndrome (IBS) or gastroesophageal reflux disease (GERD). For clients diagnosed with these or similar conditions, dietitians can help clients identify food triggers and develop a meal plan for the client that minimizes symptoms. Dietitians may also work with clients who are having gastrointestinal distress (such as bloating, gas, constipation, diarrhea, etc.) but are not aware of the cause of their symptoms. In such cases, dietitians may be able to help the client identify the cause of the GI distress and coordinate with other medical professionals to help the client better manage their symptoms.