Gastrointestinal (GI) Nutritionists and Dietitians in Guelph, ON

Photo of Chelsea Cross, Nutritionist/Dietitian, RD, MAN, BSc
Chelsea Cross
Nutritionist/Dietitian, RD, MAN, BSc
Online Only
You also have those who suffer with chronic illness (diabetes, blood pressure, fatty liver and cholesterol issues) and digestive disturbances (IBD, IBS, Celiac) who aren't sure what to do to simply feel better.
Living a balanced life has become much more complicated with all of the different information that we hear constantly and the negative relationships that have been formed with food. Together we want to remove that confusion and stress, break those negative ties, and help you to your goals using an evidence-based and personalized planning strategy. ​
You also have those who suffer with chronic illness (diabetes, blood pressure, fatty liver and cholesterol issues) and digestive disturbances (IBD, IBS, Celiac) who aren't sure what to do to simply feel better.
Living a balanced life has become much more complicated with all of the different information that we hear constantly and the negative relationships that have been formed with food. Together we want to remove that confusion and stress, break those negative ties, and help you to your goals using an evidence-based and personalized planning strategy. ​
(226) 780-3447 View (226) 780-3447
Photo of Tanya Cullen, Nutritionist/Dietitian, RD, IFNCP
Tanya Cullen
Nutritionist/Dietitian, RD, IFNCP
Online Only
You’re dealing with low energy, bloating, or digestive discomfort.
I focus on gut health, performance nutrition, and practical fueling strategies. I help adults improve energy, digestion, and weight concerns, and support youth and teens with fueling for sport, growth, and performance. Currently completing IOC Sports Nutrition certification. My approach is simple, realistic, and built for real life.
You’re dealing with low energy, bloating, or digestive discomfort.
I focus on gut health, performance nutrition, and practical fueling strategies. I help adults improve energy, digestion, and weight concerns, and support youth and teens with fueling for sport, growth, and performance. Currently completing IOC Sports Nutrition certification. My approach is simple, realistic, and built for real life.
(226) 840-3649 View (226) 840-3649
Photo of Jean LaMantia, Nutritionist/Dietitian, BASc, RD
Jean LaMantia
Nutritionist/Dietitian, BASc, RD
Online Only
I'm also experienced with GI issues like gastro-esophageal reflux.
You’re looking for a dietitian who truly listens. You want space to explain what you’ve tried, what worked, and what didn’t. You don’t want to be told what to do—you want to understand what’s happening in your body and why certain recommendations make sense.
I'm also experienced with GI issues like gastro-esophageal reflux.
You’re looking for a dietitian who truly listens. You want space to explain what you’ve tried, what worked, and what didn’t. You don’t want to be told what to do—you want to understand what’s happening in your body and why certain recommendations make sense.
(647) 952-9644 View (647) 952-9644

More Dietitians and Nutritionists Nearby

Photo of Anna Prestia, Nutritionist/Dietitian, RD
Anna Prestia
Nutritionist/Dietitian, RD
2 Endorsed
Online Only
I have expertise spanning infant and pediatric nutrition, oncology, prenatal/post-natal nutrition, disordered eating, cardiac health, diabetes, weight management, weight concerns, cancer, GI conditions, allergies, anti-inflammatory nutrition & tube feedings.
I offer practical guidance that builds confidence, supports symptoms, and strengthens a positive relationship with food. I have worked as a Clinical Lead Dietitian in acute care and outpatient settings. I am also a Pediatric Nutrition Specialist and member of the eating disorder team where we develop treatment protocols for pediatric and adult populations.
I have expertise spanning infant and pediatric nutrition, oncology, prenatal/post-natal nutrition, disordered eating, cardiac health, diabetes, weight management, weight concerns, cancer, GI conditions, allergies, anti-inflammatory nutrition & tube feedings.
I offer practical guidance that builds confidence, supports symptoms, and strengthens a positive relationship with food. I have worked as a Clinical Lead Dietitian in acute care and outpatient settings. I am also a Pediatric Nutrition Specialist and member of the eating disorder team where we develop treatment protocols for pediatric and adult populations.
(365) 650-6182 View (365) 650-6182
Photo of Michaela Harron, Nutritionist/Dietitian, RD
Michaela Harron
Nutritionist/Dietitian, RD
1 Endorsed
Online Only
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.
(365) 536-1605 View (365) 536-1605
Photo of Catherine Lin, Nutritionist/Dietitian, RD
Catherine Lin
Nutritionist/Dietitian, RD
6 Endorsed
Serves Area
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.
(343) 312-5962 View (343) 312-5962
Photo of Julia Celestini, Nutritionist/Dietitian, RD, BSc
Julia Celestini
Nutritionist/Dietitian, RD, BSc
Online Only
My mission is to provide comprehensive and compassionate support for children and families impacted by digestive troubles to find symptom relief and food freedom.
Do you feel hopeless when it comes to figuring out how to tame your child’s tummy troubles? Confused about what foods to offer? Finding conflicting information everywhere? Feel lost, overwhelmed and don’t know where to start? You do not have to navigate this journey alone - we are here to help!
My mission is to provide comprehensive and compassionate support for children and families impacted by digestive troubles to find symptom relief and food freedom.
Do you feel hopeless when it comes to figuring out how to tame your child’s tummy troubles? Confused about what foods to offer? Finding conflicting information everywhere? Feel lost, overwhelmed and don’t know where to start? You do not have to navigate this journey alone - we are here to help!
(289) 803-2743 View (289) 803-2743
Photo of Hannah Donaldson, Nutritionist/Dietitian, RD
Hannah Donaldson
Nutritionist/Dietitian, RD
Online Only
Or are you struggling with digestive discomfort, but are worried about following an overwhelming elimination diet?
I started Donaldson Nutrition to help you. My mission is to empower strength athletes to train harder, meet body composition goals and feel more confident in their bodies — through practical, evidence-based nutrition that values mental health.
Or are you struggling with digestive discomfort, but are worried about following an overwhelming elimination diet?
I started Donaldson Nutrition to help you. My mission is to empower strength athletes to train harder, meet body composition goals and feel more confident in their bodies — through practical, evidence-based nutrition that values mental health.
(289) 536-4188 View (289) 536-4188
Photo of Maiya Ahluwalia, Nutritionist/Dietitian, RD, MAN , BASc
Maiya Ahluwalia
Nutritionist/Dietitian, RD, MAN , BASc
1 Endorsed
Online Only
Whether you are seeking a dietitian for preventative reasons, digestive issues, beginning a new chapter in life (pregnancy, introducing to solids, picky eaters), or need support with a new diagnosis (PCOS, Endometrosis, Thyroid Disease etc.) I am here to support you!
As a registered dietitian I take an anti-diet approach to support my clients. Growing up as a "picky eater", I was always told how to eat and how much to eat. As I got older, I grew an interest for food and nutrition which led me to become a registered dietitian. Now I support individuals in creating sustainable dietary changes based on their preferences, dietary restrictions and medical history. I believe that embracing cultural foods, enjoying all foods and meeting your nutrition needs can all be done in sync. I specialize in pediatrics, women's health and family nutrition.
Whether you are seeking a dietitian for preventative reasons, digestive issues, beginning a new chapter in life (pregnancy, introducing to solids, picky eaters), or need support with a new diagnosis (PCOS, Endometrosis, Thyroid Disease etc.) I am here to support you!
As a registered dietitian I take an anti-diet approach to support my clients. Growing up as a "picky eater", I was always told how to eat and how much to eat. As I got older, I grew an interest for food and nutrition which led me to become a registered dietitian. Now I support individuals in creating sustainable dietary changes based on their preferences, dietary restrictions and medical history. I believe that embracing cultural foods, enjoying all foods and meeting your nutrition needs can all be done in sync. I specialize in pediatrics, women's health and family nutrition.
(289) 805-3685 View (289) 805-3685
Photo of Anna Prestia, Nutritionist/Dietitian, RD
Anna Prestia
Nutritionist/Dietitian, RD
Serves Area
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.
(365) 398-0757 View (365) 398-0757
Photo of Usha Nathwani - Nutrismart Eating, Nutritionist/Dietitian, MHSc, RD
Nutrismart Eating
Nutritionist/Dietitian, MHSc, RD
Online Only
As a clinical dietitian, I have expertise in nutritional management for a variety of medical issues - diabetes, cancer, gastrointestinal disorders (crohn's, ulcerative colitis, celiac disease, irritable bowel syndrome), food allergies and intolerances, heart disease, weight management, PCOS, kidney/liver diseases, tube feeding and nutrition supplementation.
I have been a dietitian for over 35 years and have provided nutritional counselling for various medical conditions in a hospital setting and in private practice. I strongly feel that weight management is an important health issue as it can prevent chronic diseases such as diabetes, heart disease and cancer. It is never too late to change your food habits. Fad diets may help you lose weight initially but they are not sustainable longterm. I will guide you to follow easy and practical meal plan to achieve a healthy weight without 'chronic dieting'. Make 'healthy weight' your goal for 2026.
As a clinical dietitian, I have expertise in nutritional management for a variety of medical issues - diabetes, cancer, gastrointestinal disorders (crohn's, ulcerative colitis, celiac disease, irritable bowel syndrome), food allergies and intolerances, heart disease, weight management, PCOS, kidney/liver diseases, tube feeding and nutrition supplementation.
I have been a dietitian for over 35 years and have provided nutritional counselling for various medical conditions in a hospital setting and in private practice. I strongly feel that weight management is an important health issue as it can prevent chronic diseases such as diabetes, heart disease and cancer. It is never too late to change your food habits. Fad diets may help you lose weight initially but they are not sustainable longterm. I will guide you to follow easy and practical meal plan to achieve a healthy weight without 'chronic dieting'. Make 'healthy weight' your goal for 2026.
(647) 930-7069 View (647) 930-7069
Photo of Tanya Brown - Tanya Brown, RD, Nutritionist/Dietitian, RD
Tanya Brown, RD
Nutritionist/Dietitian, RD
Serves Area
I am a Registered Dietitian with a nutrition blog and virtual/phone private practice - Tanya Brown, RD (Nutrition Simplified) www.tanyabrownrd.ca. I believe that moderation is an important part of a healthy balanced diet as well as focusing on whole foods and limiting processed foods when possible. I promote eating a healthy, well balanced diet while completing regular activity you love will help you achieve a healthy and happy life. Prior to starting a blog and private practice I worked as a clinical dietitian in long term care then in an acute hospital setting for over 10 years where I gained valuable knowledge in various areas
I am a Registered Dietitian with a nutrition blog and virtual/phone private practice - Tanya Brown, RD (Nutrition Simplified) www.tanyabrownrd.ca. I believe that moderation is an important part of a healthy balanced diet as well as focusing on whole foods and limiting processed foods when possible. I promote eating a healthy, well balanced diet while completing regular activity you love will help you achieve a healthy and happy life. Prior to starting a blog and private practice I worked as a clinical dietitian in long term care then in an acute hospital setting for over 10 years where I gained valuable knowledge in various areas
(289) 206-7086 View (289) 206-7086
Photo of Julie Mancuso - JM Nutrition, Nutritionist/Dietitian
JM Nutrition
Nutritionist/Dietitian
Serves Area
Our highly personalized service receives high praise from our clients who come to us from all walks of life for matters pertaining to weight loss, digestive health, disease management, sports nutrition & more.
We offer personalized, thorough and supportive nutritional counselling sessions with an educational component, often creating customized meal plans that are based on the foods you enjoy eating, sensitivities, goals, lifestyle, religious and cultural restrictions, and of course, your budget. Our detailed meal plans offer structure and eliminate guesswork.
Our highly personalized service receives high praise from our clients who come to us from all walks of life for matters pertaining to weight loss, digestive health, disease management, sports nutrition & more.
We offer personalized, thorough and supportive nutritional counselling sessions with an educational component, often creating customized meal plans that are based on the foods you enjoy eating, sensitivities, goals, lifestyle, religious and cultural restrictions, and of course, your budget. Our detailed meal plans offer structure and eliminate guesswork.
(437) 500-6233 View (437) 500-6233
Photo of Anna Prestia, Nutritionist/Dietitian, RD
Anna Prestia
Nutritionist/Dietitian, RD
2 Endorsed
Online Only
have expertise spanning infant and pediatric nutrition, oncology, prenatal/post-natal nutrition, disordered eating, cardiac health, diabetes, weight management, weight concerns, cancer, GI conditions, allergies, anti-inflammatory nutrition & tube feedings.
I offer practical guidance that builds confidence, supports symptoms, and strengthens a positive relationship with food. I have worked as a Clinical Lead Dietitian in acute care and outpatient settings. I am also a Pediatric Nutrition Specialist and member of the eating disorder team where we develop treatment protocols for pediatric and adult populations.
have expertise spanning infant and pediatric nutrition, oncology, prenatal/post-natal nutrition, disordered eating, cardiac health, diabetes, weight management, weight concerns, cancer, GI conditions, allergies, anti-inflammatory nutrition & tube feedings.
I offer practical guidance that builds confidence, supports symptoms, and strengthens a positive relationship with food. I have worked as a Clinical Lead Dietitian in acute care and outpatient settings. I am also a Pediatric Nutrition Specialist and member of the eating disorder team where we develop treatment protocols for pediatric and adult populations.
(289) 204-0170 View (289) 204-0170
Photo of Sarah Hunt, Nutritionist/Dietitian, RD, MAN, BaSc
Sarah Hunt
Nutritionist/Dietitian, RD, MAN, BaSc
1 Endorsed
Serves Area
Sarah studied dietetics at the University of Guelph receiving both her Bachelor’s in Applied Human Nutrition and Master’s of Applied Nutrition and has continued education in ‘FODMAP and IBS Training’, ‘Eating Disorder Sensitivity Training’, and ‘ Digestive Disorders & Eating Disorders’.
Our mission is to provide comprehensive and compassionate support for individuals impacted by digestive troubles and eating disorders to find symptom relief and food freedom. Our approach is evidence-based, holistic and individualized, always considering the unique needs of each patient.
Sarah studied dietetics at the University of Guelph receiving both her Bachelor’s in Applied Human Nutrition and Master’s of Applied Nutrition and has continued education in ‘FODMAP and IBS Training’, ‘Eating Disorder Sensitivity Training’, and ‘ Digestive Disorders & Eating Disorders’.
Our mission is to provide comprehensive and compassionate support for individuals impacted by digestive troubles and eating disorders to find symptom relief and food freedom. Our approach is evidence-based, holistic and individualized, always considering the unique needs of each patient.
(289) 207-7531 View (289) 207-7531
Photo of Danielle Goobie - The Nourished Way (Danielle), Nutritionist/Dietitian, RHN
The Nourished Way (Danielle)
Nutritionist/Dietitian, RHN
Online Only
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.
(289) 277-7024 View (289) 277-7024
Photo of Jia Yi Mok, Nutritionist/Dietitian, RD, RDN
Jia Yi Mok
Nutritionist/Dietitian, RD, RDN
1 Endorsed
Online Only
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
(365) 602-1040 View (365) 602-1040
Photo of Norine Khalil, Nutritionist/Dietitian, MSc, RD
Norine Khalil
Nutritionist/Dietitian, MSc, RD
Oakville, ON L6H
If you've been struggling with feeling okay, but wanting to feel great, you've come to the right place. Hello! My name is Norine and I'm a Registered Dietitian and nutrition consultant. I have a strong passion for supporting those who are struggling with creating a personalized version of "healthy eating" in finding their happy place with food. Whether you're struggling with a recently diagnosed chronic disease, going through a life transition, or feeling a complete lack of energy and motivation, my goal is to support you on a path to better health.
If you've been struggling with feeling okay, but wanting to feel great, you've come to the right place. Hello! My name is Norine and I'm a Registered Dietitian and nutrition consultant. I have a strong passion for supporting those who are struggling with creating a personalized version of "healthy eating" in finding their happy place with food. Whether you're struggling with a recently diagnosed chronic disease, going through a life transition, or feeling a complete lack of energy and motivation, my goal is to support you on a path to better health.
(289) 302-0467 View (289) 302-0467
Photo of Julia Petrakis, Nutritionist/Dietitian, NP
Julia Petrakis
Nutritionist/Dietitian, NP
2 Endorsed
Online Only
Hey, I am Julia a Nurse Practitioner, Psychotherapist and Holistic Nutritionist. I started my career in pediatrics, transitioned to a trauma unit, spending nearly a decade there before focusing on primary and women’s care as a nurse practitioner. My own experiences with an autoimmune disease and infertility has made me very passionate ab out holistic women’s care. After becoming a mother, I also noticed a gap in postpartum care. With my experience I offer a full body, functional medicine approach with a speciality in Women’s Health, Fertility Health and Pediatrics (well baby assessment, failure to thrive, allergies).
Hey, I am Julia a Nurse Practitioner, Psychotherapist and Holistic Nutritionist. I started my career in pediatrics, transitioned to a trauma unit, spending nearly a decade there before focusing on primary and women’s care as a nurse practitioner. My own experiences with an autoimmune disease and infertility has made me very passionate ab out holistic women’s care. After becoming a mother, I also noticed a gap in postpartum care. With my experience I offer a full body, functional medicine approach with a speciality in Women’s Health, Fertility Health and Pediatrics (well baby assessment, failure to thrive, allergies).
(365) 398-6587 View (365) 398-6587
Photo of Lindsay Murray, Nutritionist/Dietitian, RD
Lindsay Murray
Nutritionist/Dietitian, RD
Online Only
My name is Lindsay and I'm a Registered Dietitian specializing in gut health and gastrointestinal disorders including Irritable Bowel Syndrome, Celiac Disease, Wheat Allergy, Inflammatory Bowel Disease and food sensitivities.
As someone who has also struggled with digestive health issues and has received a diagnosis of IBS, I fully understand how challenging and often unsupported this diagnosis can be. Whether you have an official diagnosis or not, I am here to help you navigate through your gastrointestinal ( GI) symptoms to help you feel well again!
My name is Lindsay and I'm a Registered Dietitian specializing in gut health and gastrointestinal disorders including Irritable Bowel Syndrome, Celiac Disease, Wheat Allergy, Inflammatory Bowel Disease and food sensitivities.
As someone who has also struggled with digestive health issues and has received a diagnosis of IBS, I fully understand how challenging and often unsupported this diagnosis can be. Whether you have an official diagnosis or not, I am here to help you navigate through your gastrointestinal ( GI) symptoms to help you feel well again!
(548) 761-7185 View (548) 761-7185
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.