Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians in 97224

Photo of Rebecca Rich - Enriched Nutrition, Nutritionist/Dietitian, MS
Enriched Nutrition
Nutritionist/Dietitian, MS
Online Only
If you’ve been struggling with bloating, gas, constipation, fatigue, mood swings or restrictive diets and feel like nothing has helped, you’re not alone. Many of my clients come to me after years of frustration, trying to manage chronic digestive issues, hormone imbalances, autoimmune conditions, or food intolerances—only to be met with quick fixes that don’t last. You deserve real answers and a sustainable approach to feeling better. Together, we’ll work to uncover the root cause of your symptoms and create a science-backed plan that supports your gut, balances your hormones, and helps you truly nourish your body.
If you’ve been struggling with bloating, gas, constipation, fatigue, mood swings or restrictive diets and feel like nothing has helped, you’re not alone. Many of my clients come to me after years of frustration, trying to manage chronic digestive issues, hormone imbalances, autoimmune conditions, or food intolerances—only to be met with quick fixes that don’t last. You deserve real answers and a sustainable approach to feeling better. Together, we’ll work to uncover the root cause of your symptoms and create a science-backed plan that supports your gut, balances your hormones, and helps you truly nourish your body.
(503) 782-9614 View (503) 782-9614
Photo of Brittany Norem, Nutritionist/Dietitian, RDN, LDN
Brittany Norem
Nutritionist/Dietitian, RDN, LDN
3 Endorsed
Portland, OR 97224
Specialities include: Weight management, Pre-Diabetes, Type 2 Diabetes, Gestational Diabetes, PCOS, Heart Healthy Eating, General Nutrition, High Cholesterol, Pre/Post Natal Nutrition, Celiac Disease, IBS, Vegetarian and Vegan diets.
Brittany is a Registered Dietitian Nutritionist with Health Loft who works collaboratively with clients to create life-long and sustainable changes. Brittany understands that change takes time and works with client’s to find this balance in nutrition and daily movement. Through open discussion during sessions, client's will learn how to establish daily patterns that ultimately create healthy habits for long-term success. Brittany believes there is no one perfect diet and works with you to find the dietary interventions best suited for your health journey.
Specialities include: Weight management, Pre-Diabetes, Type 2 Diabetes, Gestational Diabetes, PCOS, Heart Healthy Eating, General Nutrition, High Cholesterol, Pre/Post Natal Nutrition, Celiac Disease, IBS, Vegetarian and Vegan diets.
Brittany is a Registered Dietitian Nutritionist with Health Loft who works collaboratively with clients to create life-long and sustainable changes. Brittany understands that change takes time and works with client’s to find this balance in nutrition and daily movement. Through open discussion during sessions, client's will learn how to establish daily patterns that ultimately create healthy habits for long-term success. Brittany believes there is no one perfect diet and works with you to find the dietary interventions best suited for your health journey.
(904) 467-7389 View (904) 467-7389

More Dietitians and Nutritionists Nearby

Photo of Nicole Buchanan, Nutritionist/Dietitian, MS, RDN
Nicole Buchanan
Nutritionist/Dietitian, MS, RDN
2 Endorsed
Portland, OR 97214
Nicole is a registered dietitian who works with clients ready to take charge of their health and make lasting changes. These clients may be managing, or hoping to prevent, chronic conditions such as diabetes, heart disease, high blood pressure, high cholesterol, or obesity. Nicole helps them develop long-term strategies that prioritize prevention, manage existing conditions, and support a healthier, more vibrant life.
Nicole is a registered dietitian who works with clients ready to take charge of their health and make lasting changes. These clients may be managing, or hoping to prevent, chronic conditions such as diabetes, heart disease, high blood pressure, high cholesterol, or obesity. Nicole helps them develop long-term strategies that prioritize prevention, manage existing conditions, and support a healthier, more vibrant life.
(659) 247-2042 View (659) 247-2042
Photo of Christine Madzik, Nutritionist/Dietitian, RDN, LD
Christine Madzik
Nutritionist/Dietitian, RDN, LD
2 Endorsed
Serves Area
I help adults and kids who struggle with digestive issues, such as Irritable Bowel Syndrome ( IBS), Inflammatory Bowel Disease (IBD), Small Intestinal Overgrowth (SIBO), Candida overgrowth, Gastroesophageal Reflux Disease (GERD), Celiac Disease, and food allergies.
Find greater attunement to your body in a supportive, non-judgemental environment. I approach nutrition through a Health At Every Size (HAES) lens. My clients describe me as compassionate, patient, validating, thorough, warm, wise, supportive, encouraging, genuine, realistic, honest, kind, and creative. See my website or google reviews for more information.
I help adults and kids who struggle with digestive issues, such as Irritable Bowel Syndrome ( IBS), Inflammatory Bowel Disease (IBD), Small Intestinal Overgrowth (SIBO), Candida overgrowth, Gastroesophageal Reflux Disease (GERD), Celiac Disease, and food allergies.
Find greater attunement to your body in a supportive, non-judgemental environment. I approach nutrition through a Health At Every Size (HAES) lens. My clients describe me as compassionate, patient, validating, thorough, warm, wise, supportive, encouraging, genuine, realistic, honest, kind, and creative. See my website or google reviews for more information.
(541) 204-8959 View (541) 204-8959
Photo of Danielle Miyazaki, Nutritionist/Dietitian, MS, RDN, CD
Danielle Miyazaki
Nutritionist/Dietitian, MS, RDN, CD
Serves Area
' Specializing in the treatment of eating disorders, disordered eating, gastrointestinal disorders, IBS, intuitive eating, and somatic nutrition.
Peace with food and body is within your reach! Call or Text Danielle Miyazaki now - 425-818-2369
' Specializing in the treatment of eating disorders, disordered eating, gastrointestinal disorders, IBS, intuitive eating, and somatic nutrition.
Peace with food and body is within your reach! Call or Text Danielle Miyazaki now - 425-818-2369
(425) 320-4994 View (425) 320-4994
Photo of Lindsay L Henley - Lindsay Henley LLC, Nutritionist/Dietitian, RDN
Lindsay Henley LLC
Nutritionist/Dietitian, RDN
Serves Area
I am passionate about gut health ( IBS/SIBO specifically), yoga, and coaching people who are suffering from abdominal pain, bloating, altered bowel habits, and chronic stress to help implement practical solutions to their health problems, so they can make confident food choices, experience increased energy levels, and reduce IBS-related symptoms.
The 3 month low FODMAP nutrition program integrates diet, exercise, mindfulness activities, yoga, stress and anxiety reduction techniques, supplements, gut supporting foods, and more! This program provides a well-rounded and practical lifestyle approach for managing IBS.
I am passionate about gut health ( IBS/SIBO specifically), yoga, and coaching people who are suffering from abdominal pain, bloating, altered bowel habits, and chronic stress to help implement practical solutions to their health problems, so they can make confident food choices, experience increased energy levels, and reduce IBS-related symptoms.
The 3 month low FODMAP nutrition program integrates diet, exercise, mindfulness activities, yoga, stress and anxiety reduction techniques, supplements, gut supporting foods, and more! This program provides a well-rounded and practical lifestyle approach for managing IBS.
(509) 390-2282 View (509) 390-2282
Photo of Melinda Staehling, Nutritionist/Dietitian, MS, CNS, LD, CN
Melinda Staehling
Nutritionist/Dietitian, MS, CNS, LD, CN
1 Endorsed
Serves Area
I specialize in digestive health ( IBS, bloating, celiac disease, histamine intolerance, GERD), diabetes, PCOS, mast cell activation, and nutrition to support mental health.
Having a difficult relationship with food and a chronic health condition is challenging. I respect bodies of all shapes and sizes and will work with you on your individual path to a new relationship with food and your body. My sessions might include brainstorming goals to make progress, meal planning, and supporting any nutrient deficiencies.
I specialize in digestive health ( IBS, bloating, celiac disease, histamine intolerance, GERD), diabetes, PCOS, mast cell activation, and nutrition to support mental health.
Having a difficult relationship with food and a chronic health condition is challenging. I respect bodies of all shapes and sizes and will work with you on your individual path to a new relationship with food and your body. My sessions might include brainstorming goals to make progress, meal planning, and supporting any nutrient deficiencies.
(541) 569-4778 View (541) 569-4778
Photo of Angela Hermes, Nutritionist/Dietitian, RDN, LD, CLT
Angela Hermes
Nutritionist/Dietitian, RDN, LD, CLT
1 Endorsed
Beaverton, OR 97005
Some of the conditions I typically treat are: Chronic migraine and other headaches, Irritable Bowel Syndrome, Crohn's Disease, Ulcerative Colitis, Lupus, Fibromyalgia, Arthritis, Joint/Muscle Pain, Chronic Fatigue Syndrome, ADD/ADHD, Austism/ASD, Epilepsy, Narcolepsy, Cancer and Cyclic Vomiting syndrome.
I use the LEAP program which utilizes cutting edge laboratory technology to help you identify your trigger foods and chemicals. Then with diet changes based on your bloodwork, we work together to get your symptoms reduced or eliminated. .
Some of the conditions I typically treat are: Chronic migraine and other headaches, Irritable Bowel Syndrome, Crohn's Disease, Ulcerative Colitis, Lupus, Fibromyalgia, Arthritis, Joint/Muscle Pain, Chronic Fatigue Syndrome, ADD/ADHD, Austism/ASD, Epilepsy, Narcolepsy, Cancer and Cyclic Vomiting syndrome.
I use the LEAP program which utilizes cutting edge laboratory technology to help you identify your trigger foods and chemicals. Then with diet changes based on your bloodwork, we work together to get your symptoms reduced or eliminated. .
(971) 251-4656 View (971) 251-4656
Photo of Naria Le Mire - Naria Le Mire Nutrition - Virtual Practice, Nutritionist/Dietitian, MPH, RD
Naria Le Mire Nutrition - Virtual Practice
Nutritionist/Dietitian, MPH, RD
Online Only
I work with clients who are dealing with bloating, diarrhea, diverticulosis, IBS, constipation, flare ups!
I specialize in gut health and help my clients stop the digestive pain while adding foods back to the diet!
I work with clients who are dealing with bloating, diarrhea, diverticulosis, IBS, constipation, flare ups!
I specialize in gut health and help my clients stop the digestive pain while adding foods back to the diet!
(619) 329-8251 View (619) 329-8251
Photo of Madeline Kuras, Nutritionist/Dietitian, RD, LDN
Madeline Kuras
Nutritionist/Dietitian, RD, LDN
1 Endorsed
Serves Area
Madeline is a registered dietitian who is passionate about empowering individuals to achieve their personal goals and feel in control of their own nutrition journey. She has experience in all levels of eating disorder treatment across all age groups. Madeline has a background in athletics and utilizes this to foster resilience and strength in her clients. She approaches each session with curiosity and drive to understand her clients struggles. She provides a safe space for all individuals to create and define their own definition of health and sustainable change.
Madeline is a registered dietitian who is passionate about empowering individuals to achieve their personal goals and feel in control of their own nutrition journey. She has experience in all levels of eating disorder treatment across all age groups. Madeline has a background in athletics and utilizes this to foster resilience and strength in her clients. She approaches each session with curiosity and drive to understand her clients struggles. She provides a safe space for all individuals to create and define their own definition of health and sustainable change.
(651) 412-7437 View (651) 412-7437
Photo of Kristen Nyampong, Nutritionist/Dietitian, RDN, LD
Kristen Nyampong
Nutritionist/Dietitian, RDN, LD
Serves Area
My name is Kristen Nyampong, and I’m a Registered Dietitian based in the Dallas–Fort Worth area. I take a person-centered, trauma-informed, and weight-inclusive approach to care. I’m especially passionate about working with individuals in the BIPOC community and those who are vegan, vegetarian, or plant-forward.
My name is Kristen Nyampong, and I’m a Registered Dietitian based in the Dallas–Fort Worth area. I take a person-centered, trauma-informed, and weight-inclusive approach to care. I’m especially passionate about working with individuals in the BIPOC community and those who are vegan, vegetarian, or plant-forward.
(331) 259-8859 View (331) 259-8859
Photo of Kristin Kinnie - Fully Alive Nutrition, Nutritionist/Dietitian, MScN, MSW, CN
Fully Alive Nutrition
Nutritionist/Dietitian, MScN, MSW, CN
2 Endorsed
Hillsboro, OR 97124
I’m passionate about helping people find freedom with food so they can live their best life – feeling fully alive! Yes, it’s possible to eat the foods you love, enjoy food that tastes good, AND nourish and support your body. I’m here to help you tune out all the external food “noise”–fad diets, food trends, superfoods, good/bad foods, etc and tune in to YOUR body and it’s internal wisdom. Through this process, we’ll discover the foods, movement, and mindset that will support you and help you feel your best. Let’s ditch the dieting cycle, restrictive eating, and judgment around food so you make peace with food and your body for good!
I’m passionate about helping people find freedom with food so they can live their best life – feeling fully alive! Yes, it’s possible to eat the foods you love, enjoy food that tastes good, AND nourish and support your body. I’m here to help you tune out all the external food “noise”–fad diets, food trends, superfoods, good/bad foods, etc and tune in to YOUR body and it’s internal wisdom. Through this process, we’ll discover the foods, movement, and mindset that will support you and help you feel your best. Let’s ditch the dieting cycle, restrictive eating, and judgment around food so you make peace with food and your body for good!
(503) 212-6971 View (503) 212-6971
Photo of Iris Briand, Nutritionist/Dietitian, RDN, LD
Iris Briand
Nutritionist/Dietitian, RDN, LD
Serves Area
Sol Food Nutrition, LLC is your home for nutritional support. The company is owned by Iris Briand, RDN, LD. Ms. Briand provides Custom Nutrition Coaching and Presentations that help lead people to adopt a healthier lifestyle by preparing simple, healthy & delicious meals.
Sol Food Nutrition, LLC is your home for nutritional support. The company is owned by Iris Briand, RDN, LD. Ms. Briand provides Custom Nutrition Coaching and Presentations that help lead people to adopt a healthier lifestyle by preparing simple, healthy & delicious meals.
(541) 625-1529 View (541) 625-1529
Photo of Elise Vega, Nutritionist/Dietitian, PSM, RDN, LDN
Elise Vega
Nutritionist/Dietitian, PSM, RDN, LDN
3 Endorsed
Serves Area
Elise is a dietitian who focuses on using realistic approaches to help you improve your health through nutrition, exercise, and other lifestyle practices. Her approach to nutrition is holistic and client centered. She takes the time to fully understand your unique lifestyle, preferences, and challenges to create a realistic nutrition plan together as a team. Elise believes in the power of using high quality nutrient dense foods to support all aspects of your health and wellbeing.
Elise is a dietitian who focuses on using realistic approaches to help you improve your health through nutrition, exercise, and other lifestyle practices. Her approach to nutrition is holistic and client centered. She takes the time to fully understand your unique lifestyle, preferences, and challenges to create a realistic nutrition plan together as a team. Elise believes in the power of using high quality nutrient dense foods to support all aspects of your health and wellbeing.
(321) 468-9298 View (321) 468-9298
Photo of Stone Jamison, Nutritionist/Dietitian, RD, LDN
Stone Jamison
Nutritionist/Dietitian, RD, LDN
6 Endorsed
Serves Area
Stone is a committed registered dietitian with expertise in outpatient nutritional care who enjoys working with clients for weight loss, heart health and gastrointestinal disorders. Grounded in evidence-based practices, Stone meets you where you are, crafting personalized interventions to align with your unique goals. Dedicated to inclusivity, Stone fosters a welcoming, judgment-free space that honors all body types, cultures, and aspirations. Passionate about empowering others, Stone will guide and support you on your wellness journey, making sure you feel understood and encouraged at every step.
Stone is a committed registered dietitian with expertise in outpatient nutritional care who enjoys working with clients for weight loss, heart health and gastrointestinal disorders. Grounded in evidence-based practices, Stone meets you where you are, crafting personalized interventions to align with your unique goals. Dedicated to inclusivity, Stone fosters a welcoming, judgment-free space that honors all body types, cultures, and aspirations. Passionate about empowering others, Stone will guide and support you on your wellness journey, making sure you feel understood and encouraged at every step.
(508) 501-3837 View (508) 501-3837
Photo of Leo Fischer - Nutrition In The Right Place, Nutritionist/Dietitian, MscN, CN
Nutrition In The Right Place
Nutritionist/Dietitian, MscN, CN
Portland, OR 97202
My specialties include type 2 diabetes, cholesterol, high blood pressure, weight loss, heart disease, Keto, Vegetarian/Vegan, medical nutrition therapy, SIBO, Sports Nutrition, Irritable Bowel Syndrome, and more!
Hello! I have my Master's in Nutrition/Dietetics and I am also a registered and certified nutritionist in OR and WA State. I also have a results guaranteed policy or your money back, so you know I am serious. I will only take you on as a client if I know I can help you achieve your goals! I work with a lot of clients that have weight loss goals and to prevent, reverse or manage chronic disease including heart disease and diabetes. It is my goal to make sure you live long, healthy, and at a high quality of life with holistic whole food nutritional life changes. I am also a climbing instructor, check it out, TreeClimbingAtSilverFalls
My specialties include type 2 diabetes, cholesterol, high blood pressure, weight loss, heart disease, Keto, Vegetarian/Vegan, medical nutrition therapy, SIBO, Sports Nutrition, Irritable Bowel Syndrome, and more!
Hello! I have my Master's in Nutrition/Dietetics and I am also a registered and certified nutritionist in OR and WA State. I also have a results guaranteed policy or your money back, so you know I am serious. I will only take you on as a client if I know I can help you achieve your goals! I work with a lot of clients that have weight loss goals and to prevent, reverse or manage chronic disease including heart disease and diabetes. It is my goal to make sure you live long, healthy, and at a high quality of life with holistic whole food nutritional life changes. I am also a climbing instructor, check it out, TreeClimbingAtSilverFalls
(508) 544-0663 View (508) 544-0663
Photo of Jody Halouska, Nutritionist/Dietitian, RD, LDN, CDCES
Jody Halouska
Nutritionist/Dietitian, RD, LDN, CDCES
Portland, OR 97215
Jody is a passionate advocate for health, wellness, and feeling your best. Jody is committed to empowering individuals to make positive and sustainable lifestyle changes. Jody strives to provide personalized guidance to help clients achieve their health goals and create a harmonious relationship with food. Recognizing that each individual's relationship with food is unique, Jody works to create a supportive and non-judgmental environment where clients feel empowered to explore their dietary preferences, navigate challenges and cultivate sustainable habits that align with their goals and values.
Jody is a passionate advocate for health, wellness, and feeling your best. Jody is committed to empowering individuals to make positive and sustainable lifestyle changes. Jody strives to provide personalized guidance to help clients achieve their health goals and create a harmonious relationship with food. Recognizing that each individual's relationship with food is unique, Jody works to create a supportive and non-judgmental environment where clients feel empowered to explore their dietary preferences, navigate challenges and cultivate sustainable habits that align with their goals and values.
(872) 259-7074 View (872) 259-7074
Photo of Carly Leanza, Nutritionist/Dietitian, MPH, RDN, LDN
Carly Leanza
Nutritionist/Dietitian, MPH, RDN, LDN
6 Endorsed
Portland, OR 97236
Carly is a Registered Dietitian who is passionate about helping people live their healthiest lives while fostering a positive relationship with food. She believes in taking a holistic approach to address the complex relationship between nutrition, mental health, and chronic conditions. Carly provides HAES-aligned care and emphasizes a non-diet approach for her nutrition counseling and evidenced-based interventions in several areas of health and nutrition, including but not limited to, pre-diabetes, type 2 diabetes, weight management, heart health, and GI management.
Carly is a Registered Dietitian who is passionate about helping people live their healthiest lives while fostering a positive relationship with food. She believes in taking a holistic approach to address the complex relationship between nutrition, mental health, and chronic conditions. Carly provides HAES-aligned care and emphasizes a non-diet approach for her nutrition counseling and evidenced-based interventions in several areas of health and nutrition, including but not limited to, pre-diabetes, type 2 diabetes, weight management, heart health, and GI management.
(312) 374-5399 View (312) 374-5399
Photo of Jenna Brown, Nutritionist/Dietitian, MS, RD, CSSD
Jenna Brown
Nutritionist/Dietitian, MS, RD, CSSD
3 Endorsed
Serves Area
Jenna is a Registered Dietitian and Certified Specialist in Sport Dietetics. She focuses on fueling for exercise/athletic performance, health, and weight management. She utilizes a food first approach and recommends supplements as needed to fill in micronutrient gaps. She builds individualized nutrition plans for weight management, and body composition changes. She provides a judgement free zone where you can feel comfortable to share your goals, current dietary practices, and exercise regimen. Jenna believes there are no healthy and unhealthy, good or bad foods, rather every day foods and every now and then foods.
Jenna is a Registered Dietitian and Certified Specialist in Sport Dietetics. She focuses on fueling for exercise/athletic performance, health, and weight management. She utilizes a food first approach and recommends supplements as needed to fill in micronutrient gaps. She builds individualized nutrition plans for weight management, and body composition changes. She provides a judgement free zone where you can feel comfortable to share your goals, current dietary practices, and exercise regimen. Jenna believes there are no healthy and unhealthy, good or bad foods, rather every day foods and every now and then foods.
(351) 208-1409 View (351) 208-1409
Photo of Michaila Byers, Nutritionist/Dietitian, RDN, LD
Michaila Byers
Nutritionist/Dietitian, RDN, LD
1 Endorsed
Serves Area
Michaila is a registered dietitian who seeks to help patients achieve an overall sense of health and wellness. She creates a safe space for exploring nutritional patterns and concerns in a kind and non-judgmental way. Having worked at Cleveland Clinic's Center for Functional Medicine, she takes a comprehensive approach that addresses the root causes of symptoms. Her approach is patient-centered, tailoring each session to the client's individual wants and needs. When you collaborate with Michaila, she will guide you on a path to better health, optimizing nutrition and improving well-being.
Michaila is a registered dietitian who seeks to help patients achieve an overall sense of health and wellness. She creates a safe space for exploring nutritional patterns and concerns in a kind and non-judgmental way. Having worked at Cleveland Clinic's Center for Functional Medicine, she takes a comprehensive approach that addresses the root causes of symptoms. Her approach is patient-centered, tailoring each session to the client's individual wants and needs. When you collaborate with Michaila, she will guide you on a path to better health, optimizing nutrition and improving well-being.
(469) 382-5972 View (469) 382-5972
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.