Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians in Issaquah, WA
' 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
My areas of focus include women’s nutrition (PCOS, endometriosis, menopause, amenorrhea and other menstrual disorders), digestive disorders and diseases ( IBS, SIBO, Celiac, Crohn’s, Colitis, and dysbiosis), metabolic conditions (blood sugar dysregulation and high cholesterol) and autoimmune and inflammatory conditions.
My approach to working with clients who have multiple complex conditions is to start slow. This helps prevent feeling overwhelmed and optimizes success without compromising your relationship with food. Small, impactful approaches to improving nutrition and lifestyle help to grow confidence and build sustainable habits that improve long-term health.
My areas of focus include women’s nutrition (PCOS, endometriosis, menopause, amenorrhea and other menstrual disorders), digestive disorders and diseases ( IBS, SIBO, Celiac, Crohn’s, Colitis, and dysbiosis), metabolic conditions (blood sugar dysregulation and high cholesterol) and autoimmune and inflammatory conditions.
My approach to working with clients who have multiple complex conditions is to start slow. This helps prevent feeling overwhelmed and optimizes success without compromising your relationship with food. Small, impactful approaches to improving nutrition and lifestyle help to grow confidence and build sustainable habits that improve long-term health.
You may feel like your body is working against you—persistent fatigue, inflammation, gut issues, anxiety, weight gain, or hormone shifts that never fully resolve. You’ve likely tried different diets, supplements, or providers, yet something still feels off. What you truly want is to understand why this is happening and finally restore your energy, metabolism, and hormone balance so you can feel like yourself again. You’re not looking for another bandaid, you want to stop chasing symptoms and finally address the root cause. Not more restriction, but a steady, resilient foundation for long-term health.
You may feel like your body is working against you—persistent fatigue, inflammation, gut issues, anxiety, weight gain, or hormone shifts that never fully resolve. You’ve likely tried different diets, supplements, or providers, yet something still feels off. What you truly want is to understand why this is happening and finally restore your energy, metabolism, and hormone balance so you can feel like yourself again. You’re not looking for another bandaid, you want to stop chasing symptoms and finally address the root cause. Not more restriction, but a steady, resilient foundation for long-term health.
Are you feeling stuck in a cycle of dieting, struggling with your relationship with food, or unsure how to support your child’s eating? I can help.
I’m Marissa Beck, a non-diet dietitian specializing in eating disorders, weight concerns, and sports nutrition. With over 15 years of experience, I help people heal their relationship with food, eat in a way that feels better, and improve their overall well-being, without restrictive diets.
Are you feeling stuck in a cycle of dieting, struggling with your relationship with food, or unsure how to support your child’s eating? I can help.
I’m Marissa Beck, a non-diet dietitian specializing in eating disorders, weight concerns, and sports nutrition. With over 15 years of experience, I help people heal their relationship with food, eat in a way that feels better, and improve their overall well-being, without restrictive diets.
I am a registered dietitian who specializes in anorexia nervosa, binge eating disorder, bulimia, ARFID, orthorexia, and other specified feeding and eating disorders. I practice under the “Health At Every Size” (HAES) philosophy and understand that body size is not a determinant factor of health. By incorporating an “all foods fit” approach to eating, I work alongside my clients to understand and incorporate the benefits of a less restrictive, more inclusive and joyful approach to eating.
I am a registered dietitian who specializes in anorexia nervosa, binge eating disorder, bulimia, ARFID, orthorexia, and other specified feeding and eating disorders. I practice under the “Health At Every Size” (HAES) philosophy and understand that body size is not a determinant factor of health. By incorporating an “all foods fit” approach to eating, I work alongside my clients to understand and incorporate the benefits of a less restrictive, more inclusive and joyful approach to eating.
"I know what I should be doing... I just don't do it". If you've ever said that about your weight loss, sports nutrition or wellness goals, then you're just like the clients I work with everyday. They have great intentions to lose weight, get fit, and improve their health, but struggle to find the time, energy and motivation to make it a priority. They've tried strict diets, joined numerous exercise programs, and set unrealistic goals - only to experience frustration and failure.
"I know what I should be doing... I just don't do it". If you've ever said that about your weight loss, sports nutrition or wellness goals, then you're just like the clients I work with everyday. They have great intentions to lose weight, get fit, and improve their health, but struggle to find the time, energy and motivation to make it a priority. They've tried strict diets, joined numerous exercise programs, and set unrealistic goals - only to experience frustration and failure.
Healthy isn’t about perfection, it’s about feeling nourished, confident, and supported. At Summit, we work with clients navigating eating disorders, disordered eating, body image concerns, ADHD-related nutrition challenges, chronic conditions, pediatric feeding concerns, and prenatal/postpartum needs. Many feel stuck, overwhelmed, or exhausted by dieting. Our compassionate, evidence-based approach helps clients rebuild trust with food, reduce stress around eating, and create realistic habits that support their lives and their families, not control them.
Healthy isn’t about perfection, it’s about feeling nourished, confident, and supported. At Summit, we work with clients navigating eating disorders, disordered eating, body image concerns, ADHD-related nutrition challenges, chronic conditions, pediatric feeding concerns, and prenatal/postpartum needs. Many feel stuck, overwhelmed, or exhausted by dieting. Our compassionate, evidence-based approach helps clients rebuild trust with food, reduce stress around eating, and create realistic habits that support their lives and their families, not control them.
Nataly Nislow is a Certified Nutrition Specialist and Certified Intuitive Eating Counselor specializing in supporting individuals navigating the complexities of eating disorders, disordered eating, intuitive eating, body acceptance, and recovery from chronic dieting. Nataly finds fulfillment in working closely with those diagnosed with OCD, ADHD, anxiety, and depression. Beyond her expertise in mental health nutrition, Nataly extends her services to individuals living with heart disease, high cholesterol, high blood pressure, type 2 diabetes, and digestive disorders.
Nataly Nislow is a Certified Nutrition Specialist and Certified Intuitive Eating Counselor specializing in supporting individuals navigating the complexities of eating disorders, disordered eating, intuitive eating, body acceptance, and recovery from chronic dieting. Nataly finds fulfillment in working closely with those diagnosed with OCD, ADHD, anxiety, and depression. Beyond her expertise in mental health nutrition, Nataly extends her services to individuals living with heart disease, high cholesterol, high blood pressure, type 2 diabetes, and digestive disorders.
More Dietitians and Nutritionists Nearby
Do you struggle with restrictive nutrition advice, food guilt, or feeling like you’re “doing nutrition wrong”? Have you spent a lot of time trying to follow rules that don’t fit your life, culture, or body? I’m best suited for people seeking flexible, realistic support for cancer prevention or survivorship, chronic conditions (like CKD, diabetes, GI disorders), eating disorders, or women’s health and hormone transitions—who want sustainable change and a more supportive relationship with food.
Do you struggle with restrictive nutrition advice, food guilt, or feeling like you’re “doing nutrition wrong”? Have you spent a lot of time trying to follow rules that don’t fit your life, culture, or body? I’m best suited for people seeking flexible, realistic support for cancer prevention or survivorship, chronic conditions (like CKD, diabetes, GI disorders), eating disorders, or women’s health and hormone transitions—who want sustainable change and a more supportive relationship with food.
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.
I also provide bioindividualized medical nutrition therapy for diverse health conditions such as GI disorders like IBS, GERD, dysbiosis, motility issues, nutritional imbalances, and mental health conditions such as anxiety, depression, and PTSD.
I use a biopsychosocial-spiritual model which takes into consideration the whole person and various environmental factors that might impact individual's health and wellbeing. I also use functional and integrative nutrition principles and tools to address root causes of diverse physical and mental health imbalances and support individuals to heal long term.
I also provide bioindividualized medical nutrition therapy for diverse health conditions such as GI disorders like IBS, GERD, dysbiosis, motility issues, nutritional imbalances, and mental health conditions such as anxiety, depression, and PTSD.
I use a biopsychosocial-spiritual model which takes into consideration the whole person and various environmental factors that might impact individual's health and wellbeing. I also use functional and integrative nutrition principles and tools to address root causes of diverse physical and mental health imbalances and support individuals to heal long term.
I love working with clients who are looking ditch diet culture, to redefine what "health" means to them, and to improve their relationship to food and body. But sometimes, the journey toward body acceptance and intuitive eating is complicated. Complex medical issues like autoimmune conditions, food allergies/intolerances, and disordered eating patterns can disrupt the relationship we have to our bodies. Most of my clients are sitting at this intersection, ready to explore a new framework and rebuild trust in their bodies.
I love working with clients who are looking ditch diet culture, to redefine what "health" means to them, and to improve their relationship to food and body. But sometimes, the journey toward body acceptance and intuitive eating is complicated. Complex medical issues like autoimmune conditions, food allergies/intolerances, and disordered eating patterns can disrupt the relationship we have to our bodies. Most of my clients are sitting at this intersection, ready to explore a new framework and rebuild trust in their bodies.
My main areas of expertise include food digestive disorders such as IBS and SIBO, food allergies & sensitivities, general inflammation, diabetes, and cardiovascular health.
I have advanced training in GI disorders and I am a Certified LEAP Therapist (CLT) which allows me to help guide clients through food sensitivity testing (utilizing the MRT test) and diet treatment protocols. Contact me for more information about the testing and process.
My main areas of expertise include food digestive disorders such as IBS and SIBO, food allergies & sensitivities, general inflammation, diabetes, and cardiovascular health.
I have advanced training in GI disorders and I am a Certified LEAP Therapist (CLT) which allows me to help guide clients through food sensitivity testing (utilizing the MRT test) and diet treatment protocols. Contact me for more information about the testing and process.
Ashley Walls specializes in working with clients interested in general healthy eating, and conditions including Eating Disorders, Disordered Eating, Celiac, Crohn's, IBS, Intuitive Eating, Weight Management and more.
Specialties include working with clients that need assistance with Irritable Bowel Syndrome ( IBS), Low FODMAP diet, GERD, Eating Disorders, Pre-diabetes, Diabetes, Heart conditions, High Blood Pressure, Cholesterol, Celiac, Crohn’s, Ulcerative Colitis, Intuitive Eating, Underweight Nutrition, Weight Management, Malnutrition, Sports Nutrition
Ashley Walls specializes in working with clients interested in general healthy eating, and conditions including Eating Disorders, Disordered Eating, Celiac, Crohn's, IBS, Intuitive Eating, Weight Management and more.
Specialties include working with clients that need assistance with Irritable Bowel Syndrome ( IBS), Low FODMAP diet, GERD, Eating Disorders, Pre-diabetes, Diabetes, Heart conditions, High Blood Pressure, Cholesterol, Celiac, Crohn’s, Ulcerative Colitis, Intuitive Eating, Underweight Nutrition, Weight Management, Malnutrition, Sports Nutrition
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.
It is my passion and purpose to empower people to create and maintain a healthy lifestyle through nutrition, stress management, movement, and healthy relationships. I believe that everyone is unique in their approach to nutrition and I offer my clients the right tools, knowledge and strategies to help them overcome obstacles and regain their health. As as seasoned nutritionist I have worked with a wide range of people from executives and parents to athletes and performing artists, and anyone who loves to eat and wants to learn. My whole foods therapeutic approach and targeted supplemental use are the key to my practice.
It is my passion and purpose to empower people to create and maintain a healthy lifestyle through nutrition, stress management, movement, and healthy relationships. I believe that everyone is unique in their approach to nutrition and I offer my clients the right tools, knowledge and strategies to help them overcome obstacles and regain their health. As as seasoned nutritionist I have worked with a wide range of people from executives and parents to athletes and performing artists, and anyone who loves to eat and wants to learn. My whole foods therapeutic approach and targeted supplemental use are the key to my practice.
At Nabi, we provide weight-inclusive, trauma-informed care that values lived experience over rigid rules and we believe true healing begins when the whole person is seen—not just a diagnosis.
At Nabi, we provide weight-inclusive, trauma-informed care that values lived experience over rigid rules and we believe true healing begins when the whole person is seen—not just a diagnosis.
I enjoy working with people to make realistic dietary changes to improve overall health and wellness. Nutrition plans are customized to meet your individual dietary needs, goals, and preferences. Whether you are seeking assistance to improve your diet, to make dietary changes for medical necessity, or your feeling overwhelmed by all the conflicting nutrition information in the world today, we will develop your personalized diet plan to promote, easy to follow, optimal eating habits that foster a positive and functional relationship with food.
I enjoy working with people to make realistic dietary changes to improve overall health and wellness. Nutrition plans are customized to meet your individual dietary needs, goals, and preferences. Whether you are seeking assistance to improve your diet, to make dietary changes for medical necessity, or your feeling overwhelmed by all the conflicting nutrition information in the world today, we will develop your personalized diet plan to promote, easy to follow, optimal eating habits that foster a positive and functional relationship with food.
Do you feel trapped in the cycle of dieting, wondering if ease with food and your body is possible? You may feel overwhelmed by body pressures, frustrated by confusing health advice, or unsure how to eat in a way that feels good. You’re not alone. In our work, we ease the stress around food, ditch the body shame, and help you feel more aligned in your choices. Imagine enjoying meals without fear, trusting your body’s signals, and having more vitality for daily life. Whether you’re managing health concerns, recovery from an eating disorder, or simply tired of dieting, our work will build ease, confidence, and lasting self-compassion.
Do you feel trapped in the cycle of dieting, wondering if ease with food and your body is possible? You may feel overwhelmed by body pressures, frustrated by confusing health advice, or unsure how to eat in a way that feels good. You’re not alone. In our work, we ease the stress around food, ditch the body shame, and help you feel more aligned in your choices. Imagine enjoying meals without fear, trusting your body’s signals, and having more vitality for daily life. Whether you’re managing health concerns, recovery from an eating disorder, or simply tired of dieting, our work will build ease, confidence, and lasting self-compassion.
Do you have digestive issues(bloating/gas, constipation, loose stool, reflux/GERD, SIBO) or an autoimmune condition (Crohn's, Ulcerative colitis, Hashimoto's) keeping you from feeling your best? We'll work together to develop a personalized action plan, taking your current diet and lifestyle habits, environment, gut health, genetics, family history (and much more) into account. We also use specialty testing as a cornerstone of care to eliminate a lot of the guesswork.
Do you have digestive issues(bloating/gas, constipation, loose stool, reflux/GERD, SIBO) or an autoimmune condition (Crohn's, Ulcerative colitis, Hashimoto's) keeping you from feeling your best? We'll work together to develop a personalized action plan, taking your current diet and lifestyle habits, environment, gut health, genetics, family history (and much more) into account. We also use specialty testing as a cornerstone of care to eliminate a lot of the guesswork.
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.