Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians in 06605

Photo of Elizabeth Dunne, Nutritionist/Dietitian, MS, RDN, LD
Elizabeth Dunne
Nutritionist/Dietitian, MS, RDN, LD
4 Endorsed
Serves Area
Elizabeth is a Registered Dietitian with over six years of experience helping individuals make healthier choices and achieve their goals. Using intuitive eating principles and a compassionate, client-centered approach, she tailors evidence-based plans to meet each person’s needs. Specializing in wellness, diabetes, and heart health, Elizabeth empowers clients with the tools and support they need to make lasting changes. Her compassionate counseling ensures that clients feel heard, confident, and motivated on their journey to improved health and well-being.
Elizabeth is a Registered Dietitian with over six years of experience helping individuals make healthier choices and achieve their goals. Using intuitive eating principles and a compassionate, client-centered approach, she tailors evidence-based plans to meet each person’s needs. Specializing in wellness, diabetes, and heart health, Elizabeth empowers clients with the tools and support they need to make lasting changes. Her compassionate counseling ensures that clients feel heard, confident, and motivated on their journey to improved health and well-being.
(901) 499-2720 View (901) 499-2720

More Dietitians and Nutritionists Nearby

Photo of Christine Jones-Howard, Nutritionist/Dietitian, RDN, CDN
Christine Jones-Howard
Nutritionist/Dietitian, RDN, CDN
Serves Area
I treat clients with the following health challenges; IBS, SIBO, IBD, Reflux, Celiac Disease, Diabetes, Hypertension, Heart Disease, Weight Loss, Weight Gain, Weight Management, Fertility, Menopause and Sports Nutrition.
I offer personalized, science-grounded nutrition care tailored to your unique health goals and lifestyle. Whether you're aiming to safely use GLP-1 medications, manage gut issues, improve cholesterol or blood pressure, support women’s health from fertility through post-menopause, or lose or maintain weight, I build plans designed around you. Expect realistic meal strategies, sustainable habits, and ongoing support — all delivered with warmth, evidence-based guidance, and no judgment.
I treat clients with the following health challenges; IBS, SIBO, IBD, Reflux, Celiac Disease, Diabetes, Hypertension, Heart Disease, Weight Loss, Weight Gain, Weight Management, Fertility, Menopause and Sports Nutrition.
I offer personalized, science-grounded nutrition care tailored to your unique health goals and lifestyle. Whether you're aiming to safely use GLP-1 medications, manage gut issues, improve cholesterol or blood pressure, support women’s health from fertility through post-menopause, or lose or maintain weight, I build plans designed around you. Expect realistic meal strategies, sustainable habits, and ongoing support — all delivered with warmth, evidence-based guidance, and no judgment.
(917) 746-3851 View (917) 746-3851
Photo of Susan P Cohen, Nutritionist/Dietitian, MA, RDN, CDN, CHC
Susan P Cohen
Nutritionist/Dietitian, MA, RDN, CDN, CHC
Cheshire, CT 06410
I am a registered dietitian nutritionist with a passion for helping individuals transform their lives through personalized nutrition and lifestyle choices. I believe that there is no one-size-fits-all approach to nutrition. Your unique body, goals, and preferences deserve a tailored plan that suits your individual needs. I take the time to understand your specific circumstances, challenges, and aspirations, ensuring that the guidance I provide is personalized just for you.
I am a registered dietitian nutritionist with a passion for helping individuals transform their lives through personalized nutrition and lifestyle choices. I believe that there is no one-size-fits-all approach to nutrition. Your unique body, goals, and preferences deserve a tailored plan that suits your individual needs. I take the time to understand your specific circumstances, challenges, and aspirations, ensuring that the guidance I provide is personalized just for you.
(203) 272-4797 View (203) 272-4797
Photo of Kate Brock, Nutritionist/Dietitian, MA, MS, CNS, LDN
Kate Brock
Nutritionist/Dietitian, MA, MS, CNS, LDN
1 Endorsed
Serves Area
You might feel like you’ve tried every diet, every plan, every reset, but still feel stuck. Maybe you’re constantly thinking about food, swinging between feeling in control and overwhelmed. You’re tired of the guilt, the spirals, and the all-or-nothing mindset. Physically, you might be dealing with bloating, fatigue, or hormone concerns, and wondering if it’s possible to care for your health without being on the constant merry go round of trying things and then giving up. If this sounds familiar, you’re not alone. Healing is possible, and it doesn’t have to be exhausting.
You might feel like you’ve tried every diet, every plan, every reset, but still feel stuck. Maybe you’re constantly thinking about food, swinging between feeling in control and overwhelmed. You’re tired of the guilt, the spirals, and the all-or-nothing mindset. Physically, you might be dealing with bloating, fatigue, or hormone concerns, and wondering if it’s possible to care for your health without being on the constant merry go round of trying things and then giving up. If this sounds familiar, you’re not alone. Healing is possible, and it doesn’t have to be exhausting.
(202) 318-3069 View (202) 318-3069
Photo of Elizabeth Morris - New England Nutrition LLC, Nutritionist/Dietitian, MS, RD, CDN
New England Nutrition LLC
Nutritionist/Dietitian, MS, RD, CDN
New Haven, CT 06510
New England Nutrition specializes in managing gastrointestinal (GI) disorders including Irritable Bowel Syndrome, SIBO, Inflammatory Bowel Disease (Crohn's, Ulcerative Colitis), Celiac Disease, GERD, and more. New England Nutrition also provides nutrition therapy for various other medical conditions as well as healthy diet counseling and weight management.
New England Nutrition specializes in managing gastrointestinal (GI) disorders including Irritable Bowel Syndrome, SIBO, Inflammatory Bowel Disease (Crohn's, Ulcerative Colitis), Celiac Disease, GERD, and more. New England Nutrition also provides nutrition therapy for various other medical conditions as well as healthy diet counseling and weight management.
(203) 717-4648 View (203) 717-4648
Photo of Colleen D Webb, Nutritionist/Dietitian, MS, RDN, CLT
Colleen D Webb
Nutritionist/Dietitian, MS, RDN, CLT
Serves Area
I specialize in providing current evidence and practice-based nutrition education to people with GI conditions, such as Crohn's disease, ulcerative colitis, IBS, small intestinal bacterial overgrowth (SIBO), diverticulosis, constipation, diarrhea, and food sensitivities.
Eat well, feel well. As a Registered Dietitian Nutritionist, I help people with digestive issues figure out what foods make them feel their healthiest, strongest, and most energized so they can live life to its fullest. I work closely with my patients to identify and overcome barriers to healthy eating, and I personalize each visit to meet the individual needs and preferences of my clients. I love food and so I focus a lot on what to eat and how to make foods taste good.
I specialize in providing current evidence and practice-based nutrition education to people with GI conditions, such as Crohn's disease, ulcerative colitis, IBS, small intestinal bacterial overgrowth (SIBO), diverticulosis, constipation, diarrhea, and food sensitivities.
Eat well, feel well. As a Registered Dietitian Nutritionist, I help people with digestive issues figure out what foods make them feel their healthiest, strongest, and most energized so they can live life to its fullest. I work closely with my patients to identify and overcome barriers to healthy eating, and I personalize each visit to meet the individual needs and preferences of my clients. I love food and so I focus a lot on what to eat and how to make foods taste good.
(646) 791-3597 View (646) 791-3597
Photo of Monica Marcello (Dietitian Driven), Nutritionist/Dietitian, MS, RD, CDN
Monica Marcello (Dietitian Driven)
Nutritionist/Dietitian, MS, RD, CDN
Cheshire, CT 06410
Dietitian Driven is a 100% insurance based nutrition practice. As the founder and lead dietitian at Dietitian Driven LLC, I specialize in providing personalized care that emphasizes gut health and digestive issues, recognizing its impact on women's health, mental health, and longevity. My approach is rooted in a holistic perspective, utilizing science-backed protocols, creative meal planning, therapeutic diets, education, supplements, tests (as needed), regular communication with your doctors, and coordination with your healthcare team.
Dietitian Driven is a 100% insurance based nutrition practice. As the founder and lead dietitian at Dietitian Driven LLC, I specialize in providing personalized care that emphasizes gut health and digestive issues, recognizing its impact on women's health, mental health, and longevity. My approach is rooted in a holistic perspective, utilizing science-backed protocols, creative meal planning, therapeutic diets, education, supplements, tests (as needed), regular communication with your doctors, and coordination with your healthcare team.
(860) 809-4754 View (860) 809-4754
Photo of Robin Gatter - Robin Gatter Nutrition, Nutritionist/Dietitian, MS, CNS, LDN, NBC-HWC
Robin Gatter Nutrition
Nutritionist/Dietitian, MS, CNS, LDN, NBC-HWC
1 Endorsed
Online Only
I help people with ADHD, Anxiety, Depression, ASD, TBIs, Anorexia, Atypical Anorexia, Binge Eating Disorder, ARFID, OSFED, Diabetes, Thyroid Disease, IBS/IBD, and other GI conditions so they can get back to living their lives, feel confident in their bodies and take the stress out of eating.
Do you have an unhealthy relationship with food? Do you get stressed thinking about what to eat? Have you tried different ways of eating to help you feel better and nothing seems to work? Like you, I struggled. I have ADHD, Thyroid Disease, and had disordered eating patterns for many years. I help people identify the root cause of their illness and incorporate nutritional changes. I know what it's like to have a negative body image and be exhausted from thinking about what I could and couldn't eat. Food should bring joy and satisfaction, not stress.
I help people with ADHD, Anxiety, Depression, ASD, TBIs, Anorexia, Atypical Anorexia, Binge Eating Disorder, ARFID, OSFED, Diabetes, Thyroid Disease, IBS/IBD, and other GI conditions so they can get back to living their lives, feel confident in their bodies and take the stress out of eating.
Do you have an unhealthy relationship with food? Do you get stressed thinking about what to eat? Have you tried different ways of eating to help you feel better and nothing seems to work? Like you, I struggled. I have ADHD, Thyroid Disease, and had disordered eating patterns for many years. I help people identify the root cause of their illness and incorporate nutritional changes. I know what it's like to have a negative body image and be exhausted from thinking about what I could and couldn't eat. Food should bring joy and satisfaction, not stress.
(561) 944-7635 View (561) 944-7635
Photo of Katie Diehl, Nutritionist/Dietitian, MS, CNS, LDN
Katie Diehl
Nutritionist/Dietitian, MS, CNS, LDN
Online Only
Katie specializes in gut health ( IBS, Crohns/UC, Celiac/Gluten Intolerance, GERD, SIBO, H. pylori, autoimmune, leaky gut, digestive discomfort, food sensitivities, etc.), weight management, sports nutrition, women's health, cardiovascular health, intuitive eating, behavioral habits, and preventative health.
Diet culture has created a lot of noise in the world about nutrition. I debunk the noise and educate you on how to eat right for your body, mindset, needs, and goals. In addition, I specialize in gut health. If you suffer with digestive issues, we will run a comprehensive stool analysis test (GI Map) to get to the root cause of WHY you're feeling that way.
Katie specializes in gut health ( IBS, Crohns/UC, Celiac/Gluten Intolerance, GERD, SIBO, H. pylori, autoimmune, leaky gut, digestive discomfort, food sensitivities, etc.), weight management, sports nutrition, women's health, cardiovascular health, intuitive eating, behavioral habits, and preventative health.
Diet culture has created a lot of noise in the world about nutrition. I debunk the noise and educate you on how to eat right for your body, mindset, needs, and goals. In addition, I specialize in gut health. If you suffer with digestive issues, we will run a comprehensive stool analysis test (GI Map) to get to the root cause of WHY you're feeling that way.
(203) 816-6024 View (203) 816-6024
Photo of Astrid Moller Gonzalez, Nutritionist/Dietitian, MS, CNS, LDN
Astrid Moller Gonzalez
Nutritionist/Dietitian, MS, CNS, LDN
Stamford, CT 06906
" Many of my clients with IBS, high cholesterol, prediabetes, ADHD, or emotional eating come to me after trying every diet and feeling like they’ve failed.
As a bilingual, licensed nutritionist, I help adults and teens who feel stuck with their eating habits, energy, or health. Many of my clients struggle with digestive issues like bloating or constipation, high blood pressure, cholesterol, blood sugar concerns, ADHD, anxiety, or emotional eating. My approach is practical, science-based, and personalized to fit real life, helping you feel more energized, improve gut and metabolic health, manage symptoms, and build a healthy relationship with food without rigid diets or judgment.
" Many of my clients with IBS, high cholesterol, prediabetes, ADHD, or emotional eating come to me after trying every diet and feeling like they’ve failed.
As a bilingual, licensed nutritionist, I help adults and teens who feel stuck with their eating habits, energy, or health. Many of my clients struggle with digestive issues like bloating or constipation, high blood pressure, cholesterol, blood sugar concerns, ADHD, anxiety, or emotional eating. My approach is practical, science-based, and personalized to fit real life, helping you feel more energized, improve gut and metabolic health, manage symptoms, and build a healthy relationship with food without rigid diets or judgment.
(786) 386-1889 View (786) 386-1889
Photo of Drew Keelia Mulvey, Nutritionist/Dietitian, MS, CDN, CNS, CLT, PNL1
Drew Keelia Mulvey
Nutritionist/Dietitian, MS, CDN, CNS, CLT, PNL1
Southbury, CT 06488
I take a holistic, root-cause approach to helping individuals understand their bodies on a biological and cellular level and develop personalized plans that move beyond diet culture, trends, and restrictive one-size-fits-all protocols. By connecting the mind and heart, I create individualized programs that support physical, mental, and emotional well-being. I work with diverse clients — including active women and athletes — who feel frustrated, dismissed, or stuck despite their efforts to improve low energy, hormonal changes, digestive concerns, food sensitivities, or ongoing symptoms that have not been fully addressed.
I take a holistic, root-cause approach to helping individuals understand their bodies on a biological and cellular level and develop personalized plans that move beyond diet culture, trends, and restrictive one-size-fits-all protocols. By connecting the mind and heart, I create individualized programs that support physical, mental, and emotional well-being. I work with diverse clients — including active women and athletes — who feel frustrated, dismissed, or stuck despite their efforts to improve low energy, hormonal changes, digestive concerns, food sensitivities, or ongoing symptoms that have not been fully addressed.
(475) 244-7238 View (475) 244-7238
Photo of Francine G Blinten, Nutritionist/Dietitian, MBA, MS, CCN, CNS
Francine G Blinten
Nutritionist/Dietitian, MBA, MS, CCN, CNS
Old Greenwich, CT 06870
I am a certified clinical nutritionist who helps clients meet their nutritional goals. I believe in tailoring a food plan to a client's individual health profile and life style needs. Especially rewarding is helping clients with unresolved health issues.
I am a certified clinical nutritionist who helps clients meet their nutritional goals. I believe in tailoring a food plan to a client's individual health profile and life style needs. Especially rewarding is helping clients with unresolved health issues.
(203) 403-2900 View (203) 403-2900
Photo of Tori Lawlor, Nutritionist/Dietitian, MS, LDN, CNS
Tori Lawlor
Nutritionist/Dietitian, MS, LDN, CNS
1 Endorsed
Milford, CT 06460
Tori is a Functional Nutritionist, graduating Summa Cum Laude from University of Bridgeport with a Masters in Clinical Nutrition and an undergraduate degree from Brown University. She is a Licensed Dietary Nutritionist, Certified Nutritionist Specialist with a passion to help others find holistic real-life solutions. Tori believes in a fully integrative approach to address mental, physical, emotional and spiritual health.
Tori is a Functional Nutritionist, graduating Summa Cum Laude from University of Bridgeport with a Masters in Clinical Nutrition and an undergraduate degree from Brown University. She is a Licensed Dietary Nutritionist, Certified Nutritionist Specialist with a passion to help others find holistic real-life solutions. Tori believes in a fully integrative approach to address mental, physical, emotional and spiritual health.
(475) 258-7301 View (475) 258-7301
Photo of Elena Pevar, Nutritionist/Dietitian, RD, CDN
Elena Pevar
Nutritionist/Dietitian, RD, CDN
North Haven, CT 06473
It is our goal to help fine tune your personal nutrition. Whether you want to lose or gain weight, help prevent or treat a disease, tackle a food allergy or just want to learn how to eat healthy, NutriGreene will create an individualized meal plan to help you reach your goals. We now accept a wide variety of insurance plans and have multiple locations across the state of CT. ​In Office or Telehealth Sessions (insurance accepted!). Conditions Treated: Weight Management, Eating Disorders, Diabetes, Heart Disease, Hypertension, High Cholesterol, Gastrointestinal Disorders, Gastric Bypass Pre/Post Surgery, Food Allergies and Chronic Kid
It is our goal to help fine tune your personal nutrition. Whether you want to lose or gain weight, help prevent or treat a disease, tackle a food allergy or just want to learn how to eat healthy, NutriGreene will create an individualized meal plan to help you reach your goals. We now accept a wide variety of insurance plans and have multiple locations across the state of CT. ​In Office or Telehealth Sessions (insurance accepted!). Conditions Treated: Weight Management, Eating Disorders, Diabetes, Heart Disease, Hypertension, High Cholesterol, Gastrointestinal Disorders, Gastric Bypass Pre/Post Surgery, Food Allergies and Chronic Kid
(860) 846-4855 View (860) 846-4855
Photo of Lisa Bunce, Nutritionist/Dietitian, MS, RD
Lisa Bunce
Nutritionist/Dietitian, MS, RD
1 Endorsed
Redding, CT 06896
I act as your coach and help you identify obstacles that inhibit healthful eating behaviors and take a new look at your daily lifestyle to help you make simple changes for better nutrition, disease prevention and health promotion. I help you examine your attitudes affecting your health choices and help you to focus on moderation not elimination. You will learn new skills for shopping, food selection, food preparation, and portion control. The goal is to make your health changes maintainable and sustainable. I offer you long term solutions for healthier living for you and your family.
I act as your coach and help you identify obstacles that inhibit healthful eating behaviors and take a new look at your daily lifestyle to help you make simple changes for better nutrition, disease prevention and health promotion. I help you examine your attitudes affecting your health choices and help you to focus on moderation not elimination. You will learn new skills for shopping, food selection, food preparation, and portion control. The goal is to make your health changes maintainable and sustainable. I offer you long term solutions for healthier living for you and your family.
(203) 490-0029 View (203) 490-0029
Photo of Ilyse Schapiro, Nutritionist/Dietitian, MS, RDN
Ilyse Schapiro
Nutritionist/Dietitian, MS, RDN
Greenwich, CT 06831
As a Credentialed Registered Dietitian, I work with clients to develop plans that are gimmick-free and easy to follow. Fad diets don't work and ultimately lead to disappointment. I take a balanced and realistic approach to help you live a healthier life. In our first session, I develop a comprehensive and customized meal plan that addresses your specific health needs, lifestyle and nutrition concerns without deprivation. Follow up sessions support your goals, and in between office visits, I am available via phone, email or text to answer questions and offer encouragement.
As a Credentialed Registered Dietitian, I work with clients to develop plans that are gimmick-free and easy to follow. Fad diets don't work and ultimately lead to disappointment. I take a balanced and realistic approach to help you live a healthier life. In our first session, I develop a comprehensive and customized meal plan that addresses your specific health needs, lifestyle and nutrition concerns without deprivation. Follow up sessions support your goals, and in between office visits, I am available via phone, email or text to answer questions and offer encouragement.
(203) 489-6192 View (203) 489-6192
Photo of Jennifer Derfel - Jennifer Derfel Nutrition PLLC, Nutritionist/Dietitian, MS, RDN, CDN
Jennifer Derfel Nutrition PLLC
Nutritionist/Dietitian, MS, RDN, CDN
Serves Area
As a dietitian, I educate, empower and give you the tools needed to create new eating habits, and promote positive lifestyle changes that are sustainable and realistic. With a client centered approach, I provide individualized nutrition counseling people of all ages. There is no “one size fits all” solution when it comes to achieving health.
As a dietitian, I educate, empower and give you the tools needed to create new eating habits, and promote positive lifestyle changes that are sustainable and realistic. With a client centered approach, I provide individualized nutrition counseling people of all ages. There is no “one size fits all” solution when it comes to achieving health.
(914) 685-5376 View (914) 685-5376
Photo of Cathleen Burns, Nutritionist/Dietitian, DCN, RDN, LDN
Cathleen Burns
Nutritionist/Dietitian, DCN, RDN, LDN
1 Endorsed
Serves Area
Collaborative Kidney Care was launched to offer a patient-focused practice with individualized treatment plans to meet you where you are and help achieve optimized health outcomes through innovative approaches.
Collaborative Kidney Care was launched to offer a patient-focused practice with individualized treatment plans to meet you where you are and help achieve optimized health outcomes through innovative approaches.
(508) 213-0392 View (508) 213-0392
Photo of Erica Leon - Erica Leon Nutrition and Associates, Nutritionist/Dietitian, MS, RDN, CEDS
Erica Leon Nutrition and Associates
Nutritionist/Dietitian, MS, RDN, CEDS
Old Greenwich, CT 06870
If you struggle with an eating disorder, disordered eating, chronic dieting, or other health conditions, you have come to the right place. We believe that difficult relationships with food and body image are barriers to living life fully. We are passionate about helping our clients develop a positive relationship with food and body image through a weight-inclusive, individualized approach. We offer you a safe and non-judgmental space for healing,
If you struggle with an eating disorder, disordered eating, chronic dieting, or other health conditions, you have come to the right place. We believe that difficult relationships with food and body image are barriers to living life fully. We are passionate about helping our clients develop a positive relationship with food and body image through a weight-inclusive, individualized approach. We offer you a safe and non-judgmental space for healing,
(914) 455-0766 View (914) 455-0766
Photo of Abby Kolbrener Greenspun - Abby Greenspun Nutrition, Nutritionist/Dietitian, MS, RD, CD-N
Abby Greenspun Nutrition
Nutritionist/Dietitian, MS, RD, CD-N
Westport, CT 06880
My goal is to help adults and children incorporate healthy eating habits and heighten their awareness of the importance of health and nutrition. I find satisfaction in knowing that I helped change someone's life in a positive way. There is nothing better than watching a patient's health and well being improve as a result of implementing a healthy diet.
My goal is to help adults and children incorporate healthy eating habits and heighten their awareness of the importance of health and nutrition. I find satisfaction in knowing that I helped change someone's life in a positive way. There is nothing better than watching a patient's health and well being improve as a result of implementing a healthy diet.
(203) 403-2863 View (203) 403-2863
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.