Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians in L5C

Photo of Terence Boateng, Nutritionist/Dietitian, MHSc, RD, CSEP-CE
Terence Boateng
Nutritionist/Dietitian, MHSc, RD, CSEP-CE
Serves Area
Terence specializes in three key areas of practice: weight management (including weight loss, muscle gain, and body composition goals); sports nutrition (helping athletes and active individuals fuel for peak performance); and digestive health (addressing conditions like IBS, food intolerances, and gut health).
Terence is a Registered Dietitian in Toronto who provides evidence-based nutrition counselling that is client-centered, goal-oriented, and tailored to your unique needs. During the initial assessment, he takes the time to understand your specific objectives, lifestyle, and challenges, using this information to co-create a practical and sustainable plan that works for you. Whether you’re an athlete aiming to optimize performance, someone managing digestive health issues, or simply looking to improve your overall well-being, Terence’s approach is personalized, flexible, and rooted in the latest scientific research.
Terence specializes in three key areas of practice: weight management (including weight loss, muscle gain, and body composition goals); sports nutrition (helping athletes and active individuals fuel for peak performance); and digestive health (addressing conditions like IBS, food intolerances, and gut health).
Terence is a Registered Dietitian in Toronto who provides evidence-based nutrition counselling that is client-centered, goal-oriented, and tailored to your unique needs. During the initial assessment, he takes the time to understand your specific objectives, lifestyle, and challenges, using this information to co-create a practical and sustainable plan that works for you. Whether you’re an athlete aiming to optimize performance, someone managing digestive health issues, or simply looking to improve your overall well-being, Terence’s approach is personalized, flexible, and rooted in the latest scientific research.
(647) 699-5345 View (647) 699-5345
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

More Dietitians and Nutritionists Nearby

Photo of Sarah Hunt, Nutritionist/Dietitian, RD, MAN, BaSc
Sarah Hunt
Nutritionist/Dietitian, RD, MAN, BaSc
1 Endorsed
Oakville, ON L6J
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 Lisa Makeeva, Nutritionist/Dietitian, MAN, RD, CPT, CYT
Lisa Makeeva
Nutritionist/Dietitian, MAN, RD, CPT, CYT
Vaughan, ON L4K
Lisa's other great area of interest is working with clients who have digestive conditions such as SIBO, irritable bowel syndrome ( IBS), and inflammatory bowel disease (IBD).
Lisa is a functional registered dietitian who is passionate about helping clients who are struggling with autoimmune disease, imbalanced hormones, blood sugar issues, and digestive woes. Using a whole-foods approach, Lisa's goal is to encourage the body's own natural healing through correcting nutrient deficiencies, restoring digestion, balancing blood sugars, and stress management.
Lisa's other great area of interest is working with clients who have digestive conditions such as SIBO, irritable bowel syndrome ( IBS), and inflammatory bowel disease (IBD).
Lisa is a functional registered dietitian who is passionate about helping clients who are struggling with autoimmune disease, imbalanced hormones, blood sugar issues, and digestive woes. Using a whole-foods approach, Lisa's goal is to encourage the body's own natural healing through correcting nutrient deficiencies, restoring digestion, balancing blood sugars, and stress management.
(289) 206-9975 View (289) 206-9975
Photo of Jackie Vykoukal, Nutritionist/Dietitian, RD, MHSc
Jackie Vykoukal
Nutritionist/Dietitian, RD, MHSc
Thornhill, ON L3T
Navigating a diagnosis of PCOS, reading conflicting information on IBS or managing menopausal symptoms can feel overwhelming!
My areas of focus include digestive health ( IBS, GERD, diverticulitis), PCOS, intuitive eating, cholesterol management and meal planning. In addition, I am a Craving Change certified practitioner and am trained on the use of a low FODMAP diet for IBS by Monash University.
Navigating a diagnosis of PCOS, reading conflicting information on IBS or managing menopausal symptoms can feel overwhelming!
My areas of focus include digestive health ( IBS, GERD, diverticulitis), PCOS, intuitive eating, cholesterol management and meal planning. In addition, I am a Craving Change certified practitioner and am trained on the use of a low FODMAP diet for IBS by Monash University.
(226) 910-1222 View (226) 910-1222
Photo of Colleen Miller, Nutritionist/Dietitian, MHSc, RD
Colleen Miller
Nutritionist/Dietitian, MHSc, RD
Online Only
Colleen's practice focus is all this digestive health related. Colleen works with clients regularly for the following health conditions and interests: Food allergies, food intolerances and food sensitivities, celiac disease, digestive concerns arising from surgery or disease such as bowel cancer, diverticulosis/diverticulitis, indigestion, bloating and more.
Colleen's practice focus is all this digestive health related. Colleen works with clients regularly for the following health conditions and interests: Food allergies, food intolerances and food sensitivities, celiac disease, digestive concerns arising from surgery or disease such as bowel cancer, diverticulosis/diverticulitis, indigestion, bloating and more.
(647) 371-5517 View (647) 371-5517
Photo of Joanne Zhou, Nutritionist/Dietitian, CDE
Joanne Zhou
Nutritionist/Dietitian, CDE
Online Only
I work with clients that are either are newly diagnosed with IBS or have had IBS for a while and just starting to get a handle on it.
I specialize in treating IBS and trained in the low-FODMAP diet through Monash University.
I work with clients that are either are newly diagnosed with IBS or have had IBS for a while and just starting to get a handle on it.
I specialize in treating IBS and trained in the low-FODMAP diet through Monash University.
(437) 476-2674 View (437) 476-2674
Photo of Manisha Sidhu, Nutritionist/Dietitian, RD
Manisha Sidhu
Nutritionist/Dietitian, RD
1 Endorsed
Online Only
Hi, I’m Manisha! If food has started to feel stressful or confusing, I can help you simplify it without losing what matters to you. Maybe you’re managing blood sugar, cholesterol, digestive symptoms, hormone changes, or emotional eating, and you’re tired of advice that doesn’t fit your life. You want a realistic plan that fits your day to day, your culture, and your lived experience, and helps you feel more confident around food. If you’re ready for steady progress and a plan you can actually maintain, I’m here for that.
Hi, I’m Manisha! If food has started to feel stressful or confusing, I can help you simplify it without losing what matters to you. Maybe you’re managing blood sugar, cholesterol, digestive symptoms, hormone changes, or emotional eating, and you’re tired of advice that doesn’t fit your life. You want a realistic plan that fits your day to day, your culture, and your lived experience, and helps you feel more confident around food. If you’re ready for steady progress and a plan you can actually maintain, I’m here for that.
(289) 514-5976 View (289) 514-5976
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 Andrea Senchuk, Nutritionist/Dietitian, RD, MHSc
Andrea Senchuk
Nutritionist/Dietitian, RD, MHSc
Online Only
As a Monash FODMAP-trained dietitian, I help adults struggling with digestive issues like IBS, diverticulitis, celiac disease, SIBO, bloating, reflux, constipation and diarrhea take control of their gut with science-backed, personalized diet and lifestyle strategies.
I work with my clients using a client portal called Practice Better, available on desktop and mobile app. This is where clients join our video sessions, reschedule appointments, access resources and make payments.
As a Monash FODMAP-trained dietitian, I help adults struggling with digestive issues like IBS, diverticulitis, celiac disease, SIBO, bloating, reflux, constipation and diarrhea take control of their gut with science-backed, personalized diet and lifestyle strategies.
I work with my clients using a client portal called Practice Better, available on desktop and mobile app. This is where clients join our video sessions, reschedule appointments, access resources and make payments.
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Photo of Julia Celestini, Nutritionist/Dietitian, RD, BSc
Julia Celestini
Nutritionist/Dietitian, RD, BSc
Online Only
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!
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 Maude Morin, Nutritionist/Dietitian, RD
Maude Morin
Nutritionist/Dietitian, RD
1 Endorsed
Online Only
Hi, I'm Maude! I’m a Registered Dietitian passionate about helping people feel their best through food without the stress of strict rules or perfection. I believe that nutrition should be simple, practical, and supportive of your well-being at every stage of life. Whether you're navigating digestive issues, hormonal changes, or simply looking to improve your energy and confidence, I’m here to make the science of nutrition feel approachable and easy to apply.
Hi, I'm Maude! I’m a Registered Dietitian passionate about helping people feel their best through food without the stress of strict rules or perfection. I believe that nutrition should be simple, practical, and supportive of your well-being at every stage of life. Whether you're navigating digestive issues, hormonal changes, or simply looking to improve your energy and confidence, I’m here to make the science of nutrition feel approachable and easy to apply.
(343) 338-4902 View (343) 338-4902
Photo of Jasdeep Singh, Nutritionist/Dietitian, RD, BASc
Jasdeep Singh
Nutritionist/Dietitian, RD, BASc
1 Endorsed
Serves Area
I work with clients through virtual counselling to improve health, energy and overall well-being. Through diet, exercise and behaviour modifications we can improve eating habits and prevent and/or manage chronic diseases. I provide easy to follow, sustainable and realistic recommendations and strategies to meet your nutritional goals.
I work with clients through virtual counselling to improve health, energy and overall well-being. Through diet, exercise and behaviour modifications we can improve eating habits and prevent and/or manage chronic diseases. I provide easy to follow, sustainable and realistic recommendations and strategies to meet your nutritional goals.
(647) 375-4624 View (647) 375-4624
Photo of Antoine Beauchamp Lepage, Nutritionist/Dietitian, RD
Antoine Beauchamp Lepage
Nutritionist/Dietitian, RD
6 Endorsed
Serves Area
I'm a plant-based dietitian/nutritionist offering Zoom consultations for anyone interested in vegan, plant-based, and vegetarian diets. I can provide services to residents from Ontario, Alberta, and BC, and I provide an insurance receipt at the end of each session. I have extensive expertise in family nutrition, balanced plant-based diets, weight loss, sports nutrition, and more. You can find additional information about my other services on the website's service page, which is accessible from the main menu. Book a free 20-minute intro session to see how I can assist you; we can schedule either a phone call or a Zoom session.
I'm a plant-based dietitian/nutritionist offering Zoom consultations for anyone interested in vegan, plant-based, and vegetarian diets. I can provide services to residents from Ontario, Alberta, and BC, and I provide an insurance receipt at the end of each session. I have extensive expertise in family nutrition, balanced plant-based diets, weight loss, sports nutrition, and more. You can find additional information about my other services on the website's service page, which is accessible from the main menu. Book a free 20-minute intro session to see how I can assist you; we can schedule either a phone call or a Zoom session.
(438) 300-9315 View (438) 300-9315
Photo of Andrea Holwegner - Health Stand Nutrition Consulting Inc, Nutritionist/Dietitian, RD
Health Stand Nutrition Consulting Inc
Nutritionist/Dietitian, RD
Serves Area
We specialize in a wide range of topics including Emotional Eating, Eating Disorders, Digestion Issues like IBS, Sports Nutrition, Medical Issues, Mental Health (ADHD), Women's Health & more.
Confused by all the nutrition advice out there? Struggling with emotional eating, digestive issues, or a health condition? Frustrated by diets that don’t work or feel impossible to stick to? You're not alone. At Health Stand Nutrition, we know that eating well isn’t just about food—it’s about real-life challenges, emotions, and habits. That’s why our Registered Dietitians take a compassionate, no-nonsense approach to help you build a healthy and joyous relationship with food—without guilt, extreme rules, or restrictions.
We specialize in a wide range of topics including Emotional Eating, Eating Disorders, Digestion Issues like IBS, Sports Nutrition, Medical Issues, Mental Health (ADHD), Women's Health & more.
Confused by all the nutrition advice out there? Struggling with emotional eating, digestive issues, or a health condition? Frustrated by diets that don’t work or feel impossible to stick to? You're not alone. At Health Stand Nutrition, we know that eating well isn’t just about food—it’s about real-life challenges, emotions, and habits. That’s why our Registered Dietitians take a compassionate, no-nonsense approach to help you build a healthy and joyous relationship with food—without guilt, extreme rules, or restrictions.
(800) 268-9487 View (800) 268-9487
Photo of Saima Khan, Nutritionist/Dietitian, Saima, Khan, RD
Saima Khan
Nutritionist/Dietitian, Saima, Khan, RD
Mississauga, ON L4T
Hi there! I’m Saima, a registered dietitian, and I’m excited to help you improve your health and well-being. If you’re feeling overwhelmed by nutrition information or struggling with managing chronic conditions such as diabetes, hypertension, high cholesterol, weight management, or digestive issues, you're in the right place. I offer a non-restrictive dietary approach designed to help you gain the knowledge and skills needed to achieve your health goals.
Hi there! I’m Saima, a registered dietitian, and I’m excited to help you improve your health and well-being. If you’re feeling overwhelmed by nutrition information or struggling with managing chronic conditions such as diabetes, hypertension, high cholesterol, weight management, or digestive issues, you're in the right place. I offer a non-restrictive dietary approach designed to help you gain the knowledge and skills needed to achieve your health goals.
(226) 400-1156 View (226) 400-1156
Photo of Julia Stanislavskaia, Nutritionist/Dietitian, RD, MScFN, BSc
Julia Stanislavskaia
Nutritionist/Dietitian, RD, MScFN, BSc
1 Endorsed
Toronto, ON M5G
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. I counsel on a wide variety of health issues from food sensitivities and eating disorders to weight management and heart health, among others. I work with people of all ages and have extensive experience in assessing and supporting complex patients with multiple conditions.
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. I counsel on a wide variety of health issues from food sensitivities and eating disorders to weight management and heart health, among others. I work with people of all ages and have extensive experience in assessing and supporting complex patients with multiple conditions.
(647) 371-5843 View (647) 371-5843
Photo of Sandra Edwards, Nutritionist/Dietitian, RD, CLT
Sandra Edwards
Nutritionist/Dietitian, RD, CLT
Markham, ON L3R
Additional services for those struggling with irritable bowel syndrome, fibromyalgia or migraines with the MRT test and the LEAP - immunocalm diet.
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.
Additional services for those struggling with irritable bowel syndrome, fibromyalgia or migraines with the MRT test and the LEAP - immunocalm diet.
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.
(416) 937-1458 View (416) 937-1458
Photo of Misha Roy - CBT Wellness and Virtual Services, Nutritionist/Dietitian, RD
CBT Wellness and Virtual Services
Nutritionist/Dietitian, RD
1 Endorsed
Mississauga, ON L4T
Accepting NEW clients. Imagine your ideal health journey-You want more energy, less stress around food, and confidence that what you eat is truly supporting your health. Maybe you’re managing diabetes, digestive issues, or food intolerances. Perhaps you’re navigating weight changes, pregnancy, postpartum recovery, or building strength for sports and fitness. You may even be balancing complex needs like food allergies, hypertension, or diabetes. This is where we can help. Our dietitians have 15+ years of experience helping individuals & families find realistic, enjoyable & sustainable ways to eat well without strict diets.
Accepting NEW clients. Imagine your ideal health journey-You want more energy, less stress around food, and confidence that what you eat is truly supporting your health. Maybe you’re managing diabetes, digestive issues, or food intolerances. Perhaps you’re navigating weight changes, pregnancy, postpartum recovery, or building strength for sports and fitness. You may even be balancing complex needs like food allergies, hypertension, or diabetes. This is where we can help. Our dietitians have 15+ years of experience helping individuals & families find realistic, enjoyable & sustainable ways to eat well without strict diets.
(289) 275-4567 View (289) 275-4567
Photo of Sana Motlekar, Nutritionist/Dietitian, MS, RD
Sana Motlekar
Nutritionist/Dietitian, MS, RD
Toronto, ON M4M
Sana provides evidence-based nutrition counselling through an individualized coaching approach centered on a client’s unique needs and goals. She works closely with her clients to empower them to find a pattern of eating that will support their mental, emotional and physical wellbeing. Her core mission is to help people develop the fundamental skills for long-term behavior change. During your sessions with Sana, she will help you curate an eating plan that takes into account your goals, budget, lifestyle and food preferences. She is well versed in various cultural cuisines and will ensure that your cultural dietary needs/restriction
Sana provides evidence-based nutrition counselling through an individualized coaching approach centered on a client’s unique needs and goals. She works closely with her clients to empower them to find a pattern of eating that will support their mental, emotional and physical wellbeing. Her core mission is to help people develop the fundamental skills for long-term behavior change. During your sessions with Sana, she will help you curate an eating plan that takes into account your goals, budget, lifestyle and food preferences. She is well versed in various cultural cuisines and will ensure that your cultural dietary needs/restriction
(647) 694-1147 View (647) 694-1147
Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians
What is Irritable Bowel Syndrome (IBS)?
Irritable bowel syndrome (IBS) is a general term that refers to a collection of symptoms associated with poor gut mobility and function, including abdominal pain, bloating, gas, and diarrhea. IBS is very common, with some estimates suggesting that as many as 10-15% of adults within the United States have IBS. Although the two conditions sound similar and share many symptoms, such as abdominal pain and diarrhea, IBS differs from irritable bowel diseases (IBDs), such as ulcerative colitis and Crohn's disease. In contrast to IBS which is caused by issues in the functioning of the colon, IBDs are inflammatory conditions caused by overactive immune cells within the intestine. IBDs are much less common than IBS and typically more medically severe, occasionally requiring intensive medical treatment and/or surgery. IBS, in contrast, can usually be managed effectively with lifestyle changes and less intense medical intervention.

What are the subcategories of IBS?
Medical professionals generally identify four main types of IBS: IBS-C (constipation-predominant subtype), IBS-D (diarrhea-predominant subtype), IBS-M (mixed bowel subtype), and IBS-U (undefined subtype). Identifying the predominant type of IBS an individual has can be important for determining the type of treatment that is best for them, such as the lifestyle and dietary changes that may be most appropriate, as well as any medications that may be necessary. However, individuals may also experience multiple subtypes over time, as well as experience cycles of flare-ups and symptom relief.

What causes IBS?
The causes of IBS are not well understood, but symptoms are generally attributed to issues with gut muscle contraction and changes in the gut microbiome, both of which can lead to the characteristic symptoms of IBS. These issues can be caused by a variety of lifestyle factors, such as diet and stress. While lifestyle modifications may not completely cure IBS symptoms, identifying symptom-triggering foods, consuming a balanced diet, and reducing stress have all been shown to greatly reduce symptoms. IBS can also be caused by bacterial or parasitic infections within the intestine, in which case the syndrome is referred to as "post-infectious IBS." In contrast to non-infectious IBS, post-infectious IBS is less chronic in nature and symptoms will often resolve once the infection has subsided.

What foods should I avoid if I have IBS?
Specific foods that may trigger symptoms of IBS can vary person-to-person. However, common foods that may exacerbate symptoms include high-fat foods (such as fatty meats), wheat, dairy products, highly acidic foods (such as citrus), beans, cabbage, milk, and carbonated drinks. Over time, individuals with IBS are often able to identify which foods cause their symptoms to worsen and learn to avoid such foods to manage their symptoms.