Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians in Pinal County, AZ

Photo of Wendy Green - AZ Dietitians, Nutritionist/Dietitian, RDN
AZ Dietitians
Nutritionist/Dietitian, RDN
Serves Area
At AZ Dietitians, we believe that there should be balance in all things including the way we eat. We at AZ Dietitians can help you learn how to navigate healthy eating by utilizing evidenced based research to recommend a treatment just right for you. Because there is not a one size fits all approach, we take into account your lifestyle, labs, food preferences, health risk factors, and other factors. We know change is hard and we can give you the tools and support you need to be successful.
At AZ Dietitians, we believe that there should be balance in all things including the way we eat. We at AZ Dietitians can help you learn how to navigate healthy eating by utilizing evidenced based research to recommend a treatment just right for you. Because there is not a one size fits all approach, we take into account your lifestyle, labs, food preferences, health risk factors, and other factors. We know change is hard and we can give you the tools and support you need to be successful.
(480) 771-9279 View (480) 771-9279

Online Dietitians and Nutritionists

Photo of Aubrey Uhling - Uhling Consulting, LLC, Nutritionist/Dietitian, MBA, RD, CDE
Uhling Consulting, LLC
Nutritionist/Dietitian, MBA, RD, CDE
Online Only
Uhling Consulting is a group of Registered Dietitians (RDs) that offer medical nutrition therapy/nutrition counseling. We offer a private setting for one-on-one nutrition counseling. Our RDs implement evidence-based practice, along with professional judgment, in order to achieve optimum care and positive nutrition and health outcomes.
Uhling Consulting is a group of Registered Dietitians (RDs) that offer medical nutrition therapy/nutrition counseling. We offer a private setting for one-on-one nutrition counseling. Our RDs implement evidence-based practice, along with professional judgment, in order to achieve optimum care and positive nutrition and health outcomes.
(602) 714-9357 View (602) 714-9357
Photo of Caitlyn Fergerson, Nutritionist/Dietitian, RDN, MEd, LDN
Caitlyn Fergerson
Nutritionist/Dietitian, RDN, MEd, LDN
Phoenix, AZ 85029
Would you like help working on your relationship with food and your relationship with your body? There are so many confusing nutrition messages out there and no single plan works for every person. If you're looking for a dietitian with varied experience and a nonjudgemental approach, I would love to talk with you. With a whole-person approach, I meet people where they're at and help them set reasonable, attainable wellness goals. I use a non-diet, trauma-informed approach with HAES (Health at Every Size) alignment and Intuitive Eating at the forefront.
Would you like help working on your relationship with food and your relationship with your body? There are so many confusing nutrition messages out there and no single plan works for every person. If you're looking for a dietitian with varied experience and a nonjudgemental approach, I would love to talk with you. With a whole-person approach, I meet people where they're at and help them set reasonable, attainable wellness goals. I use a non-diet, trauma-informed approach with HAES (Health at Every Size) alignment and Intuitive Eating at the forefront.
(520) 595-4179 View (520) 595-4179
Photo of Alex Lonnquist, Nutritionist/Dietitian, FNTP
Alex Lonnquist
Nutritionist/Dietitian, FNTP
3 Endorsed
Tucson, AZ 85719
Hello! My job is to identify and help you address the root causes of your conditions, and give you a clearly defined plan of action with tangible tools so you can achieve your health goals. I support clients dealing with complex health conditions, using nutrition practices, lifestyle modification, and brain retraining. The primary conditions I work with include autoimmune, weight loss, poor digestion, chronic fatigue, dysautonomia/POTS, anxiety/depression, multiple chemical sensitivity, OCD, ADHD, histamine intolerance/MCAS/MCAD, and more. When we attack the root cause, results show. Let's get you on the path of healing!
Hello! My job is to identify and help you address the root causes of your conditions, and give you a clearly defined plan of action with tangible tools so you can achieve your health goals. I support clients dealing with complex health conditions, using nutrition practices, lifestyle modification, and brain retraining. The primary conditions I work with include autoimmune, weight loss, poor digestion, chronic fatigue, dysautonomia/POTS, anxiety/depression, multiple chemical sensitivity, OCD, ADHD, histamine intolerance/MCAS/MCAD, and more. When we attack the root cause, results show. Let's get you on the path of healing!
(520) 683-3437 View (520) 683-3437
Photo of Rachel Lyn Masser - Tailored Bites Nutrition Concierge, Nutritionist/Dietitian, MS, RDN, CPT
Tailored Bites Nutrition Concierge
Nutritionist/Dietitian, MS, RDN, CPT
Phoenix, AZ 85032
I provide contracted nutrition therapy and cycle menu services for group homes, behavioral health centers, and care facilities. I also offer personal chef services with medically tailored meals prepared in a licensed commercial kitchen. Clients managing weight loss, diabetes, PCOS, or chronic conditions receive macro-balanced support from a dietitian-chef. Tailored Bites Nutrition Concierge blends clinical care with culinary support to help you nourish, heal, and thrive.
I provide contracted nutrition therapy and cycle menu services for group homes, behavioral health centers, and care facilities. I also offer personal chef services with medically tailored meals prepared in a licensed commercial kitchen. Clients managing weight loss, diabetes, PCOS, or chronic conditions receive macro-balanced support from a dietitian-chef. Tailored Bites Nutrition Concierge blends clinical care with culinary support to help you nourish, heal, and thrive.
(480) 470-0330 View (480) 470-0330
Photo of Nancy Potter, Nutritionist/Dietitian, BCHN®, FNTP, AIP
Nancy Potter
Nutritionist/Dietitian, BCHN®, FNTP, AIP
4 Endorsed
Tucson, AZ 85712
Nancy Potter is a Board-Certified Holistic Nutritionist & Certified AIP Coach who specializes in working with complex chronic health conditions and helping clients move toward remission. She works with individuals who have struggled to find answers elsewhere and takes a root-cause, science-based approach to help clients finally see results. Nancy works extensively with thyroid conditions, Hashimoto’s and Graves’ disease, autoimmune disease, chronic inflammation, complex digestive issues, SIBO/SIFO, MCAS and histamine-related issues, dysautonomia/POTS, diabetes, metabolic dysfunction, joint pain and fatigue.
Nancy Potter is a Board-Certified Holistic Nutritionist & Certified AIP Coach who specializes in working with complex chronic health conditions and helping clients move toward remission. She works with individuals who have struggled to find answers elsewhere and takes a root-cause, science-based approach to help clients finally see results. Nancy works extensively with thyroid conditions, Hashimoto’s and Graves’ disease, autoimmune disease, chronic inflammation, complex digestive issues, SIBO/SIFO, MCAS and histamine-related issues, dysautonomia/POTS, diabetes, metabolic dysfunction, joint pain and fatigue.
(520) 502-5965 View (520) 502-5965
Photo of Madison Morris, Nutritionist/Dietitian, RDN
Madison Morris
Nutritionist/Dietitian, RDN
Online Only
Between her professional backgrounds in both the arts and sciences and her own health journey as a thyroid cancer survivor, Madison brings a unique blend of skills and experiences to the proverbial table. As a professional ballerina and dance educator, she knows firsthand the importance of nutrition for optimizing performance, recovery, and healing.
Between her professional backgrounds in both the arts and sciences and her own health journey as a thyroid cancer survivor, Madison brings a unique blend of skills and experiences to the proverbial table. As a professional ballerina and dance educator, she knows firsthand the importance of nutrition for optimizing performance, recovery, and healing.
(480) 542-7718 View (480) 542-7718
Photo of Nourish Family Nutrition Therapy - Nourish Family Nutrition & Therapy, Nutritionist/Dietitian, RDN, LDN
Nourish Family Nutrition & Therapy
Nutritionist/Dietitian, RDN, LDN
1 Endorsed
Online Only
Our Registered Dietitian Nutritionists work with you individually to formulate a personalized, sustainable nutrition plan. There's a lot of contradictory information about what and how to eat and it can be overwhelming. We are the largest team of dietitian nutritionists in the area and have over 15 years of experience helping individuals reach their health goals realistically, sustainably and with compassion. We have a RDN for everyone - whether you are managing a condition such as diabetes or heart disease, weight issues, eating disorders, vegetarian, adolescents, sports nutrition and more.
Our Registered Dietitian Nutritionists work with you individually to formulate a personalized, sustainable nutrition plan. There's a lot of contradictory information about what and how to eat and it can be overwhelming. We are the largest team of dietitian nutritionists in the area and have over 15 years of experience helping individuals reach their health goals realistically, sustainably and with compassion. We have a RDN for everyone - whether you are managing a condition such as diabetes or heart disease, weight issues, eating disorders, vegetarian, adolescents, sports nutrition and more.
(520) 341-6391 View (520) 341-6391
Photo of Nicole Ortiz, Nutritionist/Dietitian, RDN, LD, MCN
Nicole Ortiz
Nutritionist/Dietitian, RDN, LD, MCN
Online Only
My ideal clients are individuals seeking support for disordered eating, eating disorders, gastrointestinal health, diabetes, and overall wellness. They often feel overwhelmed by nutrition information or stuck in restrictive patterns and want a more balanced, sustainable approach. I provide evidence-based, bilingual (English and Spanish) care that is practical and personalized. Together, we focus on building realistic habits, improving health, and creating long-term change in a supportive, non-judgmental space.
My ideal clients are individuals seeking support for disordered eating, eating disorders, gastrointestinal health, diabetes, and overall wellness. They often feel overwhelmed by nutrition information or stuck in restrictive patterns and want a more balanced, sustainable approach. I provide evidence-based, bilingual (English and Spanish) care that is practical and personalized. Together, we focus on building realistic habits, improving health, and creating long-term change in a supportive, non-judgmental space.
(708) 377-9487 View (708) 377-9487
Photo of Ellen L. Syversen - Ellen Syversen, Functional Nutrition, Nutritionist/Dietitian, MPH, FNTP, MRWP
Ellen Syversen, Functional Nutrition
Nutritionist/Dietitian, MPH, FNTP, MRWP
Tempe, AZ 85281
Are you exasperated with your exhaustion? Struggling with digestive issues like pain, bloating, constipation or diarrhea that make you feel miserable? Does it seem like no matter what diet you try, your list of "safe foods" keeps dwindling? Ever wonder if you will be able to move beyond your "mystery issues"? I get it 100%. I struggled with intense fatigue, hormone imbalances, and digestive issues for years, and after I healed myself with a functional nutrition approach, I made it my mission to help others do the same. I have helped 100's of clients over the last 15 years transform their health & reclaim their vibrance.
Are you exasperated with your exhaustion? Struggling with digestive issues like pain, bloating, constipation or diarrhea that make you feel miserable? Does it seem like no matter what diet you try, your list of "safe foods" keeps dwindling? Ever wonder if you will be able to move beyond your "mystery issues"? I get it 100%. I struggled with intense fatigue, hormone imbalances, and digestive issues for years, and after I healed myself with a functional nutrition approach, I made it my mission to help others do the same. I have helped 100's of clients over the last 15 years transform their health & reclaim their vibrance.
(541) 366-4062 View (541) 366-4062
Photo of Danielle Herrera, Nutritionist/Dietitian, RDN, LD
Danielle Herrera
Nutritionist/Dietitian, RDN, LD
4 Endorsed
Phoenix, AZ 85012
Danielle’s ideal client is a bariatric patient struggling to meet daily protein needs. Common concerns include low energy, confusion about which foods are appropriate, and uncertainty around high-protein sources. Clients often want guidance on protein goals and support with staying consistent with bariatric multivitamins.
Danielle’s ideal client is a bariatric patient struggling to meet daily protein needs. Common concerns include low energy, confusion about which foods are appropriate, and uncertainty around high-protein sources. Clients often want guidance on protein goals and support with staying consistent with bariatric multivitamins.
(615) 219-8246 View (615) 219-8246
Photo of Katherine Gregory, Nutritionist/Dietitian, FNTP
Katherine Gregory
Nutritionist/Dietitian, FNTP
3 Endorsed
Gilbert, AZ 85298
I help people uncover the root causes of their complex, chronic health struggles so their bodies can heal and they feel like themselves again. Many of my clients have seen multiple doctors and still struggle with things like digestive issues, thyroid problems, fatigue, eczema, joint pain, anxiety, asthma, pre/diabetes, and hormone imbalances. I also work with (and personally experienced) autoimmunity, SIBO, mold illness (CIRS), MCAS, oxalate sensitivity, and limbic system impairment.
I help people uncover the root causes of their complex, chronic health struggles so their bodies can heal and they feel like themselves again. Many of my clients have seen multiple doctors and still struggle with things like digestive issues, thyroid problems, fatigue, eczema, joint pain, anxiety, asthma, pre/diabetes, and hormone imbalances. I also work with (and personally experienced) autoimmunity, SIBO, mold illness (CIRS), MCAS, oxalate sensitivity, and limbic system impairment.
(520) 366-3490 View (520) 366-3490
Photo of Kelli Jo Grover, Nutritionist/Dietitian, MDA, RDN
Kelli Jo Grover
Nutritionist/Dietitian, MDA, RDN
Surprise, AZ 85387
Kelli Jo has worked as a dietitian helping those who suffer from eating disorders for the last 9 years at all levels of care. Kelli Jo has worked with extensive medical complications, including gastroparesis, bariatric surgeries, allergies, enteral feedings, autoimmune disorders, diabetes, EDS, SMA, POTS, Kelli Jo has also worked with individuals who struggle with co-occurring BPD, DID, OCD, substance abuse, and other addictions. She works with individuals with significant trauma and understands how this impacts one's relationship with food and body.
Kelli Jo has worked as a dietitian helping those who suffer from eating disorders for the last 9 years at all levels of care. Kelli Jo has worked with extensive medical complications, including gastroparesis, bariatric surgeries, allergies, enteral feedings, autoimmune disorders, diabetes, EDS, SMA, POTS, Kelli Jo has also worked with individuals who struggle with co-occurring BPD, DID, OCD, substance abuse, and other addictions. She works with individuals with significant trauma and understands how this impacts one's relationship with food and body.
(801) 692-3055 View (801) 692-3055
Photo of Gloria Gonzalez, Nutritionist/Dietitian, RDN
Gloria Gonzalez
Nutritionist/Dietitian, RDN
Online Only
I help individuals navigate nutrition and lifestyle for: weight management, PCOS, prediabetes, diabetes, digestive concerns ( IBS, IBD, general gut health), and heart health (cholesterol, blood pressure, and Mediterranean-style eating).
Nutritional Glo offers customized nutrition counseling to help you achieve your health goals. We take your unique needs into account to develop a personalized, realistic plan that works for you. Our deep understanding of food, nutrition, and behavior guides our recommendations that support you on your long-term health goals.
I help individuals navigate nutrition and lifestyle for: weight management, PCOS, prediabetes, diabetes, digestive concerns ( IBS, IBD, general gut health), and heart health (cholesterol, blood pressure, and Mediterranean-style eating).
Nutritional Glo offers customized nutrition counseling to help you achieve your health goals. We take your unique needs into account to develop a personalized, realistic plan that works for you. Our deep understanding of food, nutrition, and behavior guides our recommendations that support you on your long-term health goals.
(623) 432-7909 View (623) 432-7909
Photo of Heather M Duquette-Wolf - HMD Nutrition, Nutritionist/Dietitian, RD, CSSD
HMD Nutrition
Nutritionist/Dietitian, RD, CSSD
Online Only
If you suffer from any inflammatory condition, such as, headaches, migraines, allergies, asthma, skin issues, arthritis, joint pain or IBS, I can help you with an anti-inflammatory diet with a whole foods approach and the proper supplementation.
My name is Heather M. Duquette-Wolf and I am the owner of HMD Nutrition. I have been in practice since 1999. I started out in medical nutrition therapy (diabetes, high blood pressure, high cholesterol...) and have expanded my areas of expertise to intestinal disorders, inflammatory disease and exercise nutrition. I have the utmost confidence that with my style of education and your motivation that we can eliminate most of your health issues, not just manage your weight! You will not be on a diet or feel deprived, I will teach you how to understand food and how it reacts in YOUR body.
If you suffer from any inflammatory condition, such as, headaches, migraines, allergies, asthma, skin issues, arthritis, joint pain or IBS, I can help you with an anti-inflammatory diet with a whole foods approach and the proper supplementation.
My name is Heather M. Duquette-Wolf and I am the owner of HMD Nutrition. I have been in practice since 1999. I started out in medical nutrition therapy (diabetes, high blood pressure, high cholesterol...) and have expanded my areas of expertise to intestinal disorders, inflammatory disease and exercise nutrition. I have the utmost confidence that with my style of education and your motivation that we can eliminate most of your health issues, not just manage your weight! You will not be on a diet or feel deprived, I will teach you how to understand food and how it reacts in YOUR body.
(480) 788-0939 View (480) 788-0939
Photo of Marilyn Sheets Cryan, Nutritionist/Dietitian, RDN, CLT
Marilyn Sheets Cryan
Nutritionist/Dietitian, RDN, CLT
Scottsdale, AZ 85257
Are you motivated to change your eating and lifestyle habits, but not sure where to start? Are you managing symptoms but never fully getting to the root cause? I work with my clients on examining the dietary and behavioral factors that play into how they look and feel. Eating is unique in the that touches on many different aspects of life, from the mental and physical to the emotional. We have to address the core issues in order to make sustainable change.
Are you motivated to change your eating and lifestyle habits, but not sure where to start? Are you managing symptoms but never fully getting to the root cause? I work with my clients on examining the dietary and behavioral factors that play into how they look and feel. Eating is unique in the that touches on many different aspects of life, from the mental and physical to the emotional. We have to address the core issues in order to make sustainable change.
(480) 712-2757 View (480) 712-2757
Photo of Bernadette Roumbos - Bernadette Roumbos , Nutritionist/Dietitian, MA, RDN, LPC, RYT, CPT
Bernadette Roumbos
Nutritionist/Dietitian, MA, RDN, LPC, RYT, CPT
1 Endorsed
Online Only
I provide an integrative, nonjudgmental, and personal approach to make lifestyle changes for you and your family. Whether you are struggling to manage your weight, keep your diabetes under control, or with GI or eating disorders, I can help you meet your goals for optimal wellness. As an experienced Registered Dietitian, and Licensed Professional Counselor in the healthcare industry for over 26 years, I take the guesswork out of making diet and lifestyle changes by including Health Coaching, Motivational Interviewing techniques, Clinical Hypnotherapy, and more to design a personal plan targeted for your specific needs.
I provide an integrative, nonjudgmental, and personal approach to make lifestyle changes for you and your family. Whether you are struggling to manage your weight, keep your diabetes under control, or with GI or eating disorders, I can help you meet your goals for optimal wellness. As an experienced Registered Dietitian, and Licensed Professional Counselor in the healthcare industry for over 26 years, I take the guesswork out of making diet and lifestyle changes by including Health Coaching, Motivational Interviewing techniques, Clinical Hypnotherapy, and more to design a personal plan targeted for your specific needs.
(520) 337-8713 View (520) 337-8713
Photo of Alyssa Simpson - Nutrition Resolution GI Dietitians, Nutritionist/Dietitian, RDN, CGN, CLT
Nutrition Resolution GI Dietitians
Nutritionist/Dietitian, RDN, CGN, CLT
4 Endorsed
Online Only
Maybe you’ve been diagnosed with IBS, SIBO, or GERD… or told everything looks “normal” and sent on your way.
We’re a team of GI Dietitians who’ve specialized in digestive issues since 2012. We’ve helped thousands of clients finally get answers, calm chronic symptoms, and rebuild a resilient gut using personalized nutrition therapy, advanced testing, and step-by-step support—so they can enjoy a wide variety of foods again.
Maybe you’ve been diagnosed with IBS, SIBO, or GERD… or told everything looks “normal” and sent on your way.
We’re a team of GI Dietitians who’ve specialized in digestive issues since 2012. We’ve helped thousands of clients finally get answers, calm chronic symptoms, and rebuild a resilient gut using personalized nutrition therapy, advanced testing, and step-by-step support—so they can enjoy a wide variety of foods again.
(480) 845-0501 View (480) 845-0501
Photo of Ricci-Lee Hotz, Nutritionist/Dietitian, MS, RDN, LD
Ricci-Lee Hotz
Nutritionist/Dietitian, MS, RDN, LD
2 Endorsed
Online Only
My nutrition philosophy is unique in that I focus on providing evidence-based, individualized nutrition recommendations focusing on moderation, variety, and how to fit patients' favorite foods into a healthy eating lifestyle. This can improve quality of life for many individuals who feel they must restrict certain foods to be healthy or lose weight. In addition, I have a special passion for working with individuals with eating disorders, athletes/dancers, weight management, and GI conditions/food allergies. I look forward to supporting you in your nutrition and health journey.
My nutrition philosophy is unique in that I focus on providing evidence-based, individualized nutrition recommendations focusing on moderation, variety, and how to fit patients' favorite foods into a healthy eating lifestyle. This can improve quality of life for many individuals who feel they must restrict certain foods to be healthy or lose weight. In addition, I have a special passion for working with individuals with eating disorders, athletes/dancers, weight management, and GI conditions/food allergies. I look forward to supporting you in your nutrition and health journey.
(612) 482-5327 View (612) 482-5327
Photo of Ryann Hilton - NourishRX Nutrition Counseling, Nutritionist/Dietitian, RD, LDN, CEDS-C
NourishRX Nutrition Counseling
Nutritionist/Dietitian, RD, LDN, CEDS-C
Online Only
Are you struggling with anxiety around meals, guilt after eating, or physical issues like digestive problems or hormonal imbalances? Are you feeling stuck in a cycle of dieting, restriction, or binging with no end in sight? Maybe you’re watching your child struggle with body image or refusing to eat, leaving you feeling worried and helpless. We understand that healing from an eating disorder isn’t just about food—it’s about rebuilding trust with your body and mind. Our personalized, non-judgmental approach helps you develop healthy habits. Our dietitians are here to guide you in reclaiming your health and finding long-term balance.
Are you struggling with anxiety around meals, guilt after eating, or physical issues like digestive problems or hormonal imbalances? Are you feeling stuck in a cycle of dieting, restriction, or binging with no end in sight? Maybe you’re watching your child struggle with body image or refusing to eat, leaving you feeling worried and helpless. We understand that healing from an eating disorder isn’t just about food—it’s about rebuilding trust with your body and mind. Our personalized, non-judgmental approach helps you develop healthy habits. Our dietitians are here to guide you in reclaiming your health and finding long-term balance.
(480) 864-4347 View (480) 864-4347
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.