Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians in Tiburon, CA

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Photo of Lauren Adler Dear - Dear Nutrition, Nutritionist/Dietitian, MS, RDN, LDN
Dear Nutrition
Nutritionist/Dietitian, MS, RDN, LDN
1 Endorsed
Serves Area
For clients struggling with digestive issues, we help make changes to overcome pain and discomfort from irritable bowel syndrome ( IBS), bloating, GERD/reflux, small intestinal bacterial overgrowth, ulcerative colitis, gastroparesis, and other GI-related conditions.
For clients navigating an eating disorder, chronic dieting, or disordered eating, our goal is to help you develop a better relationship with food. We use an Intuitive Eating framework and practice a non-diet approach influenced by the principles of Health at Every Size.
For clients struggling with digestive issues, we help make changes to overcome pain and discomfort from irritable bowel syndrome ( IBS), bloating, GERD/reflux, small intestinal bacterial overgrowth, ulcerative colitis, gastroparesis, and other GI-related conditions.
For clients navigating an eating disorder, chronic dieting, or disordered eating, our goal is to help you develop a better relationship with food. We use an Intuitive Eating framework and practice a non-diet approach influenced by the principles of Health at Every Size.
(617) 544-2647 View (617) 544-2647
Photo of Ellie Rastoder - Valence Nutrition, LLC, Nutritionist/Dietitian, RD, LD
Valence Nutrition, LLC
Nutritionist/Dietitian, RD, LD
Online Only
Through my signature 12-Week “From Flare to Freedom” IBS Program, I guide individuals step-by-step to identify and manage their triggers while rebuilding trust in food - without fear or restriction.
I full-heartedly believe in the power of education and strive to empower others to take charge of their lives. My specialty is IBS.
Through my signature 12-Week “From Flare to Freedom” IBS Program, I guide individuals step-by-step to identify and manage their triggers while rebuilding trust in food - without fear or restriction.
I full-heartedly believe in the power of education and strive to empower others to take charge of their lives. My specialty is IBS.
(562) 268-5649 View (562) 268-5649
Photo of Amanda Wikan, Nutritionist/Dietitian, MS, RDN
Amanda Wikan
Nutritionist/Dietitian, MS, RDN
Petaluma, CA 94954
I specialize in Irritable Bowel Syndrome and complex gut issues that haven't responded to standard approaches.
My clients typically come to me with some combination of bloating, cramping, urgency, constipation, or diarrhea that hasn't resolved despite consistent effort, and confusion or fear around food after years of conflicting advice. Often, they've seen gastroenterologists and multiple providers without getting a clear answer.
I specialize in Irritable Bowel Syndrome and complex gut issues that haven't responded to standard approaches.
My clients typically come to me with some combination of bloating, cramping, urgency, constipation, or diarrhea that hasn't resolved despite consistent effort, and confusion or fear around food after years of conflicting advice. Often, they've seen gastroenterologists and multiple providers without getting a clear answer.
(707) 868-5718 View (707) 868-5718
Photo of Jennifer Anthony, Nutritionist/Dietitian, MS, RD
Jennifer Anthony
Nutritionist/Dietitian, MS, RD
Serves Area
You might feel stuck in cycles of dieting, food guilt, or an all-or-nothing mindset around eating or movement. Maybe you’re managing stress, digestive issues, high cholesterol, diabetes, or you simply want to feel better both physically and mentally. You’re looking for a new approach—one that builds confidence, balance, and peace with food while supporting your overall well-being.
You might feel stuck in cycles of dieting, food guilt, or an all-or-nothing mindset around eating or movement. Maybe you’re managing stress, digestive issues, high cholesterol, diabetes, or you simply want to feel better both physically and mentally. You’re looking for a new approach—one that builds confidence, balance, and peace with food while supporting your overall well-being.
(928) 323-0542 View (928) 323-0542
Photo of Carly R Schott, Nutritionist/Dietitian, MS, RDN
Carly R Schott
Nutritionist/Dietitian, MS, RDN
Online Only
Carly grew up in the San Francisco Bay Area, and she has been a Registered Dietitian Nutritionist (RDN) for the last 11 years. Her interest in nutrition originally stemmed from the experience of being a patient herself, which gave her the drive and motivation to fight for her patients and help others through their own health and nutrition struggles. Carly has worked in acute care hospitals and in outpatient private practice, she has written for professional nutrition blogs, and she has taught numerous university nutrition courses, but her passion lies in providing one-on-one nutrition counseling.
Carly grew up in the San Francisco Bay Area, and she has been a Registered Dietitian Nutritionist (RDN) for the last 11 years. Her interest in nutrition originally stemmed from the experience of being a patient herself, which gave her the drive and motivation to fight for her patients and help others through their own health and nutrition struggles. Carly has worked in acute care hospitals and in outpatient private practice, she has written for professional nutrition blogs, and she has taught numerous university nutrition courses, but her passion lies in providing one-on-one nutrition counseling.
(510) 901-3450 View (510) 901-3450
Photo of Norae Berry, Nutritionist/Dietitian, MS, RD, CLT
Norae Berry
Nutritionist/Dietitian, MS, RD, CLT
San Francisco, CA 94117
Conditions/diet therapies I work with often are: Food Allergy/Sensitivity IBS/IBD, Migraines, Fybromyalgia, Weight Management, Metabolic Syndrome, Pre Diabetes and Diabetes, High Cholesterol or High Blood Pressure, low FODMAP, pre-dialysis Kidney Disease, Pregnancy and Breastfeeding, Elite Sports Performance, and Eating Disorders.
Corporate Wellness: every office is interested in nutrition! We are currently providing successful and engaged through virtual group sessions. Hot topics, Q&A sessions, menu review, multi-session classes and more. Email me to set up a complimentary 15 minute phone consult and discuss current presentation titles, and your needs. $500-$2500 per event.
Conditions/diet therapies I work with often are: Food Allergy/Sensitivity IBS/IBD, Migraines, Fybromyalgia, Weight Management, Metabolic Syndrome, Pre Diabetes and Diabetes, High Cholesterol or High Blood Pressure, low FODMAP, pre-dialysis Kidney Disease, Pregnancy and Breastfeeding, Elite Sports Performance, and Eating Disorders.
Corporate Wellness: every office is interested in nutrition! We are currently providing successful and engaged through virtual group sessions. Hot topics, Q&A sessions, menu review, multi-session classes and more. Email me to set up a complimentary 15 minute phone consult and discuss current presentation titles, and your needs. $500-$2500 per event.
(415) 578-6098 View (415) 578-6098
Photo of Kia Sanford, Nutritionist/Dietitian, MS
Kia Sanford
Nutritionist/Dietitian, MS
2 Endorsed
San Rafael, CA 94915
What we eat, drink and even the air we breathe can have profound effects on our well being. By making food our medicine, Functional Clinical Nutrition transforms the daily rituals of eating into health sustaining practices. In recognizing that medicine can be food, these practices bring the mystery of attaining and maintaining within our reach. (Due to so many solicitations I must state I am not now, nor will I ever be, interested in being a part of a multi-level marketing company. Please DO NOT contact me about Mila, Isagenix, JuicePlus, or any other "opportunity". Thank you.)
What we eat, drink and even the air we breathe can have profound effects on our well being. By making food our medicine, Functional Clinical Nutrition transforms the daily rituals of eating into health sustaining practices. In recognizing that medicine can be food, these practices bring the mystery of attaining and maintaining within our reach. (Due to so many solicitations I must state I am not now, nor will I ever be, interested in being a part of a multi-level marketing company. Please DO NOT contact me about Mila, Isagenix, JuicePlus, or any other "opportunity". Thank you.)
(415) 969-5835 View (415) 969-5835
Photo of Tommy Comer, Nutritionist/Dietitian, BS, MS
Tommy Comer
Nutritionist/Dietitian, BS, MS
Serves Area
Whether you are struggling with chronic health conditions including GI distress, IBS, GERD, depression, inflammation, or food intolerances.
Functional medicine nutrition is a nutritional approach that emphasizes the unique biochemistry of each individual and the interplay between genetics, environment, and lifestyle factors in determining health outcomes. I focus on identifying and addressing the root causes of health imbalances, while using food and nutrients to support optimal health and prevent chronic diseases.
Whether you are struggling with chronic health conditions including GI distress, IBS, GERD, depression, inflammation, or food intolerances.
Functional medicine nutrition is a nutritional approach that emphasizes the unique biochemistry of each individual and the interplay between genetics, environment, and lifestyle factors in determining health outcomes. I focus on identifying and addressing the root causes of health imbalances, while using food and nutrients to support optimal health and prevent chronic diseases.
(424) 799-1235 View (424) 799-1235
Photo of Erica Markovitz, Nutritionist/Dietitian, MS, RD
Erica Markovitz
Nutritionist/Dietitian, MS, RD
Online Only
Whether you’re recovering from an eating disorder or working toward a more peaceful relationship with food, I emphasize a flexible, weight-neutral approach to nutrition. This means moving away from labeling foods as “good" or "bad” and letting go of seeing your body as something to fight against. I invite you to reconnect with your body as a vehicle for living and experiencing the world, rather than something to control. My goal is to support choices that feel informed and aligned with your needs, not driven by rules. If you’re looking for a supportive, judgment-free space where you can show up as you are, we might be a good fit.
Whether you’re recovering from an eating disorder or working toward a more peaceful relationship with food, I emphasize a flexible, weight-neutral approach to nutrition. This means moving away from labeling foods as “good" or "bad” and letting go of seeing your body as something to fight against. I invite you to reconnect with your body as a vehicle for living and experiencing the world, rather than something to control. My goal is to support choices that feel informed and aligned with your needs, not driven by rules. If you’re looking for a supportive, judgment-free space where you can show up as you are, we might be a good fit.
(323) 515-1249 View (323) 515-1249
Photo of Sabine Haake - Sabine Haake RD, Nutritionist/Dietitian, RD
Sabine Haake RD
Nutritionist/Dietitian, RD
San Rafael, CA 94903
We eat at least 3-4 times a day or 21-28 times a week. Eating is an activity we have been engaging in since we were born. We used to know when we were hungry and when we were full. When this energy giving and life sustaining act becomes a source of confusion, guilt and fear, when eating becomes disordered and turns into a dangerous coping mechanism, it is time to evaluate what we are doing and explore how we can normalize our behavior so our minds and body can function in a healthy way to support our goals.
We eat at least 3-4 times a day or 21-28 times a week. Eating is an activity we have been engaging in since we were born. We used to know when we were hungry and when we were full. When this energy giving and life sustaining act becomes a source of confusion, guilt and fear, when eating becomes disordered and turns into a dangerous coping mechanism, it is time to evaluate what we are doing and explore how we can normalize our behavior so our minds and body can function in a healthy way to support our goals.
(415) 233-7588 View (415) 233-7588
Photo of Amy Isabella Chalker, Nutritionist/Dietitian, RDN, CEDS
Amy Isabella Chalker
Nutritionist/Dietitian, RDN, CEDS
Online Only
Conditions like IBS, SIBO, MCAS, Celiac Disease, and others are given careful consideration and evaluation to determine the most appropriate course of treatment.
Clients who seek to work with Amy have often pursued other avenues of nutrition management, including diets and traditional meal plans, as a means to meet their goals. Frequently, Amy provides a more in-depth examination of external tools, and encourages clients to inquire within and challenge themselves to view their food and their relationship with the body and self differently. In our current health climate, Amy also sees a number of clients who seek to address gastrointestinal conditions and autoimmune issues like MCAS, POTS, and EDS, that interfere with feeding themselves and promote or encourage disordered eating.
Conditions like IBS, SIBO, MCAS, Celiac Disease, and others are given careful consideration and evaluation to determine the most appropriate course of treatment.
Clients who seek to work with Amy have often pursued other avenues of nutrition management, including diets and traditional meal plans, as a means to meet their goals. Frequently, Amy provides a more in-depth examination of external tools, and encourages clients to inquire within and challenge themselves to view their food and their relationship with the body and self differently. In our current health climate, Amy also sees a number of clients who seek to address gastrointestinal conditions and autoimmune issues like MCAS, POTS, and EDS, that interfere with feeding themselves and promote or encourage disordered eating.
(805) 749-2816 View (805) 749-2816
Photo of Emerald Santacruz, Nutritionist/Dietitian, BCHN, NBC-HWC, AIPCC
Emerald Santacruz
Nutritionist/Dietitian, BCHN, NBC-HWC, AIPCC
Online Only
If you are having trouble adapting to life with an autoimmune condition, you are not alone. Many look for natural options to support autoimmune conditions but expert guidance for this is not readily available in the conventional medical system. Whether you were just diagnosed or have been struggling for years, you can benefit from the support of an autoimmune wellness expert. From autoimmune friendly recipes, supportive supplements and herbs, or guidance on underlying health imbalances, I strive to help you feel your best, and in control of your health, despite autoimmunity.
If you are having trouble adapting to life with an autoimmune condition, you are not alone. Many look for natural options to support autoimmune conditions but expert guidance for this is not readily available in the conventional medical system. Whether you were just diagnosed or have been struggling for years, you can benefit from the support of an autoimmune wellness expert. From autoimmune friendly recipes, supportive supplements and herbs, or guidance on underlying health imbalances, I strive to help you feel your best, and in control of your health, despite autoimmunity.
(916) 347-5421 View (916) 347-5421
Photo of Stephanie Sperring - Nutrition for Autoimmunity, LLC, Nutritionist/Dietitian, LD, CNS, MScN, AIP
Nutrition for Autoimmunity, LLC
Nutritionist/Dietitian, LD, CNS, MScN, AIP
1 Endorsed
Serves Area
I work with clients online all over the United Stated. My clients have autoimmune disorders, MCAS, food sensitivities, GI issues or are dealing with immune issues. I help with meal plans and coming up with lifestyle changes that work for you. Implementing these changes leads to less pain, more energy, and feeling better overall.
I work with clients online all over the United Stated. My clients have autoimmune disorders, MCAS, food sensitivities, GI issues or are dealing with immune issues. I help with meal plans and coming up with lifestyle changes that work for you. Implementing these changes leads to less pain, more energy, and feeling better overall.
(971) 315-8985 View (971) 315-8985
Photo of Cambiati Wellness - Cambiati Wellness, Nutritionist/Dietitian, RD, CN
Cambiati Wellness
Nutritionist/Dietitian, RD, CN
Lafayette, CA 94549
We have questions about your story, your readiness to change, and the way you’re living your life. •Struggling with digestive issues? •Separating your closet into “skinny” and, ahem, “not so skinny” clothes? •Know what to do but just aren't doing it? •Planning to start a new way of eating this Monday…no really, this Monday. Wait, next Monday. •Not sure what's wrong and all of the tests at the doctor's office are "normal"? We offer a no-cost Breakthrough Session so that we can create the perfect plan for you. You can schedule here: https://rebeccaw.as.me/healthprofs I 925-280-4442 I info@cambiati.com I www.cambiati.com
We have questions about your story, your readiness to change, and the way you’re living your life. •Struggling with digestive issues? •Separating your closet into “skinny” and, ahem, “not so skinny” clothes? •Know what to do but just aren't doing it? •Planning to start a new way of eating this Monday…no really, this Monday. Wait, next Monday. •Not sure what's wrong and all of the tests at the doctor's office are "normal"? We offer a no-cost Breakthrough Session so that we can create the perfect plan for you. You can schedule here: https://rebeccaw.as.me/healthprofs I 925-280-4442 I info@cambiati.com I www.cambiati.com
(925) 310-6494 View (925) 310-6494
Photo of Whitney Lau, Nutritionist/Dietitian, RDN
Whitney Lau
Nutritionist/Dietitian, RDN
Online Only
Diagnosed with PCOS? Struggling with digestive issues, period problems, thyroid problems, fertility challenges, or menopause symp? Experiencing symptoms of fatigue, low energy, bloating, acne, and/ or hair loss? If you’re finding it difficult to get answers from your doctor, or if you were simply told "your labs look normal", and are tired of the trial-and-error approach, wasting time and money on random supplements and treatments, know that there's a better solution. You deserve to have the tools to learn how to manage your health issues, heal your body, and feel like yourself while living a life you love to its fullest potential.
Diagnosed with PCOS? Struggling with digestive issues, period problems, thyroid problems, fertility challenges, or menopause symp? Experiencing symptoms of fatigue, low energy, bloating, acne, and/ or hair loss? If you’re finding it difficult to get answers from your doctor, or if you were simply told "your labs look normal", and are tired of the trial-and-error approach, wasting time and money on random supplements and treatments, know that there's a better solution. You deserve to have the tools to learn how to manage your health issues, heal your body, and feel like yourself while living a life you love to its fullest potential.
(510) 726-4221 View (510) 726-4221
Photo of Elena Zorn, Nutritionist/Dietitian, MS, MA, FMCHC
Elena Zorn
Nutritionist/Dietitian, MS, MA, FMCHC
Online Only
Over the years, I have developed a structured approach to help clients break unhealthy habits such as excessive sugar consumption, late-night eating, frequent snacking, and negative self-talk. My goal is to support sustainable lifestyle changes that encourage healthier food choices, a balanced relationship with food, and improved overall well-being.
Over the years, I have developed a structured approach to help clients break unhealthy habits such as excessive sugar consumption, late-night eating, frequent snacking, and negative self-talk. My goal is to support sustainable lifestyle changes that encourage healthier food choices, a balanced relationship with food, and improved overall well-being.
(628) 250-4892 View (628) 250-4892
Photo of Katherine Dittmann, Nutritionist/Dietitian, MA, MS, RD
Katherine Dittmann
Nutritionist/Dietitian, MA, MS, RD
San Francisco, CA 94109
You may feel stuck in cycles of dieting, food rules, or disordered eating that leave you anxious, overwhelmed, or disconnected from your body. You’re tired of obsessing about what, when, or how much to eat, yet still feel bad no matter what you choose. Perhaps body image concerns, shame, or self-criticism make it hard to enjoy eating or to care for yourself. You want relief from confusion and stress around food and a way to nourish yourself without guilt. My clients are often searching for more freedom, ease, and trust with food—and a kinder, more sustainable relationship with themselves.
You may feel stuck in cycles of dieting, food rules, or disordered eating that leave you anxious, overwhelmed, or disconnected from your body. You’re tired of obsessing about what, when, or how much to eat, yet still feel bad no matter what you choose. Perhaps body image concerns, shame, or self-criticism make it hard to enjoy eating or to care for yourself. You want relief from confusion and stress around food and a way to nourish yourself without guilt. My clients are often searching for more freedom, ease, and trust with food—and a kinder, more sustainable relationship with themselves.
(415) 965-2840 View (415) 965-2840
Photo of Alysia Vega, Nutritionist/Dietitian, LDN, RD
Alysia Vega
Nutritionist/Dietitian, LDN, RD
1 Endorsed
Online Only
Hello! I am a California-based Registered Dietitian with the group practice, Karuna Wellness Studio, who sees clients both virtually across the U.S. Karuna is a group practice specializing in nutrition and movement services through a anti-diet, HAES-aligned, weight-neutral approach. We integrate the pillars of lifestyle medicine and nutritional psychiatry to serve as health advocates for our clients, promoting both physical and mental health. I truly enjoy helping clients explore their relationship with food, movement and their bodies.
Hello! I am a California-based Registered Dietitian with the group practice, Karuna Wellness Studio, who sees clients both virtually across the U.S. Karuna is a group practice specializing in nutrition and movement services through a anti-diet, HAES-aligned, weight-neutral approach. We integrate the pillars of lifestyle medicine and nutritional psychiatry to serve as health advocates for our clients, promoting both physical and mental health. I truly enjoy helping clients explore their relationship with food, movement and their bodies.
(858) 683-1993 View (858) 683-1993
Photo of Ashley Reaver, Nutritionist/Dietitian, MS, RD, CSSD
Ashley Reaver
Nutritionist/Dietitian, MS, RD, CSSD
Oakland, CA 94609
Not sure of when, how, or what to eat? Learn to confidently feed yourself and your family to fuel long-term health and reach wellness goals. My philosophy is an additive one with a focus on adding in the right nourishing foods. Ultimately, in this process, there are no foods that are off-limits. As more healthful foods fill your plate, there will be less room for the foods that aren't serving you well. I have a passion for cooking that I use to encourage my clients to get into their own kitchens. A connection to food through preparation is the ultimate key to long-term health and success.
Not sure of when, how, or what to eat? Learn to confidently feed yourself and your family to fuel long-term health and reach wellness goals. My philosophy is an additive one with a focus on adding in the right nourishing foods. Ultimately, in this process, there are no foods that are off-limits. As more healthful foods fill your plate, there will be less room for the foods that aren't serving you well. I have a passion for cooking that I use to encourage my clients to get into their own kitchens. A connection to food through preparation is the ultimate key to long-term health and success.
(925) 255-7737 View (925) 255-7737
Photo of Robert J Hildebrandt, Nutritionist/Dietitian, MBA, RDN, CDCES
Robert J Hildebrandt
Nutritionist/Dietitian, MBA, RDN, CDCES
1 Endorsed
Online Only
My ideal client is someone who’s ready for real change but feels stuck. Maybe they’ve tried diets, medications, or programs before, but nothing has worked long-term. They may be struggling with weight, newly diagnosed with type 2 diabetes or prediabetes, or managing chronic issues like high cholesterol or high blood pressure. Many are overwhelmed by conflicting nutrition advice and just want to know what to eat — and how to stick with it. What they really need is a plan that makes sense for their life — not a generic handout or fad diet. They want support from someone who listens, simplifies the process, and keeps them accountable.
My ideal client is someone who’s ready for real change but feels stuck. Maybe they’ve tried diets, medications, or programs before, but nothing has worked long-term. They may be struggling with weight, newly diagnosed with type 2 diabetes or prediabetes, or managing chronic issues like high cholesterol or high blood pressure. Many are overwhelmed by conflicting nutrition advice and just want to know what to eat — and how to stick with it. What they really need is a plan that makes sense for their life — not a generic handout or fad diet. They want support from someone who listens, simplifies the process, and keeps them accountable.
(609) 246-3105 View (609) 246-3105
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.