Gastrointestinal (GI) Nutritionists and Dietitians in Simi Valley, CA
Elizabeth has extensive experience in academia, clinical nutrition, and one-on-one care. She strives to foster an environment where patients of all ages can explore their relationship with food in a supportive, individualized, and evidence-based manner. She has specific expertise at the intersection of mental health and chronic conditions, and she focuses on bringing the latest clinical research to her patients in a safe, thoughtful, and emotionally secure way.
Elizabeth has extensive experience in academia, clinical nutrition, and one-on-one care. She strives to foster an environment where patients of all ages can explore their relationship with food in a supportive, individualized, and evidence-based manner. She has specific expertise at the intersection of mental health and chronic conditions, and she focuses on bringing the latest clinical research to her patients in a safe, thoughtful, and emotionally secure way.
Whether you are looking for guidance on Autoimmunity, Sports Performance, Fertility, GI Dysfunctions, Anxiety/Depression or just want more energy and better sleep, I'm here to partner with you.
As a functional nutrition and health coach, I know that you are unique and one solution (or pill!) does not fit all. After childhood allergies/asthma, frequent infections and fatigue, I was diagnosed with reproductive cancer and an autoimmune disease. I've been through it all, so I understand how frustrated you feel when your body stops working. Together, we'll build a strong foundation for you from the ground up with food, lifestyle and mindset enhancements. My programs improve sleep, energy, mental focus, and build better lifelong habits so you can accomplish more every day.
Whether you are looking for guidance on Autoimmunity, Sports Performance, Fertility, GI Dysfunctions, Anxiety/Depression or just want more energy and better sleep, I'm here to partner with you.
As a functional nutrition and health coach, I know that you are unique and one solution (or pill!) does not fit all. After childhood allergies/asthma, frequent infections and fatigue, I was diagnosed with reproductive cancer and an autoimmune disease. I've been through it all, so I understand how frustrated you feel when your body stops working. Together, we'll build a strong foundation for you from the ground up with food, lifestyle and mindset enhancements. My programs improve sleep, energy, mental focus, and build better lifelong habits so you can accomplish more every day.
Amanda's experience includes MNT for diabetes, heart and kidney disease, and anti-inflammatory diets for gut health.
Amanda takes an integrative whole person approach to nutrition therapy, exploring diet, sleep and exercise habits. Whether you seek to optimize your nutrition, prevent chronic disease, or require medical nutrition therapy (MNT), Amanda works with you to identify root causes and explore areas for change. Amanda's philosophy is that diet is a way of life, our eating pattern is uniquely our own, and that health comes in all shapes and sizes. The care, education, and recommendations she provides is individualized, and long term success is achieved through realistic and incremental lifestyle modifications.
Amanda's experience includes MNT for diabetes, heart and kidney disease, and anti-inflammatory diets for gut health.
Amanda takes an integrative whole person approach to nutrition therapy, exploring diet, sleep and exercise habits. Whether you seek to optimize your nutrition, prevent chronic disease, or require medical nutrition therapy (MNT), Amanda works with you to identify root causes and explore areas for change. Amanda's philosophy is that diet is a way of life, our eating pattern is uniquely our own, and that health comes in all shapes and sizes. The care, education, and recommendations she provides is individualized, and long term success is achieved through realistic and incremental lifestyle modifications.
More Dietitians and Nutritionists Nearby
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.
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 offer integrative, functional nutrition care grounded in Health at Every Size (HAES). Our work will be collaborative, compassionate, and evidence-based, focused on identifying root contributors and creating achievable plans that support health and quality of life across all stages.
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 offer integrative, functional nutrition care grounded in Health at Every Size (HAES). Our work will be collaborative, compassionate, and evidence-based, focused on identifying root contributors and creating achievable plans that support health and quality of life across all stages.
Areas of expertise include family feeding; adolescent and adult weight concerns; disordered eating, ED's; Type2 & pre diabetes; PCOS; gastrointestinal health; integrative nutrition and wellness.
Silvina has advanced training and experience in: Child, Adolescent and Adult Weight Concerns; Intuitive & Mindful Eating; Integrative and GI Nutrition. Education: B.S. in Nutrition & Dietetics, California Polytechnic, San Luis Obispo ; Master's in Public Health, UCLA. Nutrition/Dietetic Internship, West LA VA Medical Center.
Areas of expertise include family feeding; adolescent and adult weight concerns; disordered eating, ED's; Type2 & pre diabetes; PCOS; gastrointestinal health; integrative nutrition and wellness.
Silvina has advanced training and experience in: Child, Adolescent and Adult Weight Concerns; Intuitive & Mindful Eating; Integrative and GI Nutrition. Education: B.S. in Nutrition & Dietetics, California Polytechnic, San Luis Obispo ; Master's in Public Health, UCLA. Nutrition/Dietetic Internship, West LA VA Medical Center.
I am a Clinical Registered Dietitian and specialize in renal disease, diabetes, GI including enteral (Tube Feedings) & parenteral nutrition.
I use the latest scientifically evidence based research on medical nutrition therapy consultations to assess, monitor, & optimize nutrition status based on patients’ current chronic medical conditions &/or nutrition adequacy. I review functional blood chemistry analysis, before set any goals & make recommendations for my patients.
I am a Clinical Registered Dietitian and specialize in renal disease, diabetes, GI including enteral (Tube Feedings) & parenteral nutrition.
I use the latest scientifically evidence based research on medical nutrition therapy consultations to assess, monitor, & optimize nutrition status based on patients’ current chronic medical conditions &/or nutrition adequacy. I review functional blood chemistry analysis, before set any goals & make recommendations for my patients.
I am a gut specialist.
Have you wondered what foods are upsetting you or what foods you should be eating to feel better? Are you at a point where you are tired of your indigestion, discomfort, pain and lack of energy and nothing seems to work? Well, that is what I help you with. With my 17 years of experience I assess your underlying problem to bring you relief and vitality in your life I provide a personalised food plan and supplement program that I monitor as you progress. I work with you to bring the results and health you want.
I am a gut specialist.
Have you wondered what foods are upsetting you or what foods you should be eating to feel better? Are you at a point where you are tired of your indigestion, discomfort, pain and lack of energy and nothing seems to work? Well, that is what I help you with. With my 17 years of experience I assess your underlying problem to bring you relief and vitality in your life I provide a personalised food plan and supplement program that I monitor as you progress. I work with you to bring the results and health you want.
My ideal client has done everything right, followed plans, taken supplements, read the books, but still feels anxious, exhausted, or disconnected from their body. They often struggle with digestion, hormones, or stress related symptoms and want to understand why. They are ready for a compassionate, science based approach that honors both body and mind. Together, we restore a sense of safety first so energy, digestion, and calm can follow naturally.
My ideal client has done everything right, followed plans, taken supplements, read the books, but still feels anxious, exhausted, or disconnected from their body. They often struggle with digestion, hormones, or stress related symptoms and want to understand why. They are ready for a compassionate, science based approach that honors both body and mind. Together, we restore a sense of safety first so energy, digestion, and calm can follow naturally.
If you suffer from digestive problems, food allergies, previous or current cancer treatment or other health issues, I am also a Certified Diabetes Educator (CDCES).
Are you confused about what to eat? Are you looking to keep muscle while on a GLP-1? . Are you diabetic or trying to prevent diabetes or other chronic diseases? Do you suffer with food allergies or sensitivities? Do you display disordered eating, or eating disorder behaviors? Let's form a "team" to help improve your labs, lose or gain weight, and make lasting changes without feeling deprived. I currently work in doctors' offices and hospitals, keeping up-to-date on the latest research. I also accept most Insurance, and Medicare. If you need to pay out of pocket, I will work with your budget. It's time to "Move to Wellness!"
If you suffer from digestive problems, food allergies, previous or current cancer treatment or other health issues, I am also a Certified Diabetes Educator (CDCES).
Are you confused about what to eat? Are you looking to keep muscle while on a GLP-1? . Are you diabetic or trying to prevent diabetes or other chronic diseases? Do you suffer with food allergies or sensitivities? Do you display disordered eating, or eating disorder behaviors? Let's form a "team" to help improve your labs, lose or gain weight, and make lasting changes without feeling deprived. I currently work in doctors' offices and hospitals, keeping up-to-date on the latest research. I also accept most Insurance, and Medicare. If you need to pay out of pocket, I will work with your budget. It's time to "Move to Wellness!"
Other benefits include brain balance and a healthy and regulated gastrointestinal tract.
As my client, I want to find out what is really going on with your metabolism and provide you with answers aimed at improving weight and health in a convenient way using the latest evidence in nutritional science. I'm a board Certified Clinical Nutritionist and Pharmacist with affordable pricing and friendly service. I serve the Los Angeles county area.
Other benefits include brain balance and a healthy and regulated gastrointestinal tract.
As my client, I want to find out what is really going on with your metabolism and provide you with answers aimed at improving weight and health in a convenient way using the latest evidence in nutritional science. I'm a board Certified Clinical Nutritionist and Pharmacist with affordable pricing and friendly service. I serve the Los Angeles county area.
My ideal clients are individuals managing GI disorders, chronic diseases, or age-related health concerns who want practical, personalized nutrition support.
I specialize in GI disorders, chronic disease management, and geriatric nutrition. Using a “food as medicine” approach and culinary expertise, I provide practical, evidence-based strategies that help clients improve health, manage symptoms, and build sustainable, personalized eating habits.
My ideal clients are individuals managing GI disorders, chronic diseases, or age-related health concerns who want practical, personalized nutrition support.
I specialize in GI disorders, chronic disease management, and geriatric nutrition. Using a “food as medicine” approach and culinary expertise, I provide practical, evidence-based strategies that help clients improve health, manage symptoms, and build sustainable, personalized eating habits.
Are you fed-up with the rollercoaster of dieting? Overwhelmed by conflicting diet advice? Are thoughts about food and body claiming too much of your headspace? How would it feel to NOT spend so much time and effort analyzing and second guessing your food choices? You are not alone and you don't have to figure this all out by yourself! Many of us are taught messages about food and health as far back as we can remember, and all of these “rules” can feel overwhelming. I'll help you sort through the noise and find ways to nourish your body in a way that makes sense for you and your goals.
Are you fed-up with the rollercoaster of dieting? Overwhelmed by conflicting diet advice? Are thoughts about food and body claiming too much of your headspace? How would it feel to NOT spend so much time and effort analyzing and second guessing your food choices? You are not alone and you don't have to figure this all out by yourself! Many of us are taught messages about food and health as far back as we can remember, and all of these “rules” can feel overwhelming. I'll help you sort through the noise and find ways to nourish your body in a way that makes sense for you and your goals.
My expertise is in metabolic health, weight loss, sports nutrition, and gut health.
Hey! I'm Kelli, let's build the ideal strategy for your health and your goals. I help people use diet, exercise, and mindset to improve energy, lose weight, build muscle, and improve health. I know it can be overwhelming, let me help you make it simple AND effective :)
My expertise is in metabolic health, weight loss, sports nutrition, and gut health.
Hey! I'm Kelli, let's build the ideal strategy for your health and your goals. I help people use diet, exercise, and mindset to improve energy, lose weight, build muscle, and improve health. I know it can be overwhelming, let me help you make it simple AND effective :)
Kristin specializes in working with adults and adolescents with Eating Disorders, Disordered Eating, PCOS, Digestive Conditions, IBS, Low FODMAP, Chron's, and Pre/Post Natal Nutrition, and Diabetes.
Specialties include working with adults with Eating Disorders, Disordered Eating, PCOS, Digestive Conditions, IBS, Low FODMAP, Crohn's, Diabetes, and Pre/Post Natal Nutrition. Other areas of expertise include but is not limited to general healthy eating, GERD, and Heart Conditions.
Kristin specializes in working with adults and adolescents with Eating Disorders, Disordered Eating, PCOS, Digestive Conditions, IBS, Low FODMAP, Chron's, and Pre/Post Natal Nutrition, and Diabetes.
Specialties include working with adults with Eating Disorders, Disordered Eating, PCOS, Digestive Conditions, IBS, Low FODMAP, Crohn's, Diabetes, and Pre/Post Natal Nutrition. Other areas of expertise include but is not limited to general healthy eating, GERD, and Heart Conditions.
I specialize in eating disorder and chronic dieting recovery, gut and digestive health, behavioral and mental health, and support for prediabetes and PCOS.
You have spent so much time trying to eat perfectly that food has become exhausting. You want peace with eating and confidence in your body again. I help people who feel burned out from diets or stress find simple, sustainable ways to nourish themselves. Alongside my client work, I teach postgraduate nutrition students how to blend science, compassion, and trauma informed care.
I specialize in eating disorder and chronic dieting recovery, gut and digestive health, behavioral and mental health, and support for prediabetes and PCOS.
You have spent so much time trying to eat perfectly that food has become exhausting. You want peace with eating and confidence in your body again. I help people who feel burned out from diets or stress find simple, sustainable ways to nourish themselves. Alongside my client work, I teach postgraduate nutrition students how to blend science, compassion, and trauma informed care.
You are tired of dieting and want to feel at peace with food and your body. You may be struggling with digestion issues, fatigue, or anxiety and want lasting change that feels supportive, not restrictive. You want to understand your body, feel nourished, and finally have food feel simple again.
You are tired of dieting and want to feel at peace with food and your body. You may be struggling with digestion issues, fatigue, or anxiety and want lasting change that feels supportive, not restrictive. You want to understand your body, feel nourished, and finally have food feel simple again.
Do you struggle with digestive issues like IBS, bloating, or GERD—or feel stuck when it comes to your weight or relationship with food?
I specialize in digestive health (IBS, SIBO, bloating, GERD) and weight management. With over 25 years of experience, I can help you build sustainable habits based on your goals, lifestyle, and health needs.
You’ll receive guidance, support, and accountability so you can feel confident in your choices and achieve lasting results.
Do you struggle with digestive issues like IBS, bloating, or GERD—or feel stuck when it comes to your weight or relationship with food?
I specialize in digestive health (IBS, SIBO, bloating, GERD) and weight management. With over 25 years of experience, I can help you build sustainable habits based on your goals, lifestyle, and health needs.
You’ll receive guidance, support, and accountability so you can feel confident in your choices and achieve lasting results.
I work with busy professionals battling digestive concerns, weight gain, fatigue, and blood sugar swings from hectic schedules.
I am an integrative and functional dietitian which means food/nutrition is medicine and integral to your well being but not the only focus. I seek to understand you as a whole person which includes your personal & family history, preferences, sleep patterns, stress, lifestyle, lab data, etc. to create realistic habits that fit your life.
I work with busy professionals battling digestive concerns, weight gain, fatigue, and blood sugar swings from hectic schedules.
I am an integrative and functional dietitian which means food/nutrition is medicine and integral to your well being but not the only focus. I seek to understand you as a whole person which includes your personal & family history, preferences, sleep patterns, stress, lifestyle, lab data, etc. to create realistic habits that fit your life.
Gastrointestinal (GI) Nutritionists and Dietitians
What is gut health?
Gut health refers to the overall functioning and well-being of the gastrointestinal (GI) system. Key to gut health is the gut microbiome, which is the collection of healthy bacteria living in the gut. These bacteria are essential for the digestion and breakdown of food, and their health significantly impacts digestion. Poor gut health can result in symptoms such as bloating, gas, diarrhea, constipation, and general abdominal discomfort, which may indicate imbalances or issues with the gut microbiome.
Can diet help with GI issues?
Diet plays a major role in gut health, and changes in diet can often reduce or eliminate some of the symptoms associated with gastrointestinal (GI) issues. Often, GI distress is due to food intolerances or sensitivities, such as gluten sensitivity or lactose intolerance. In these cases, eliminating the problematic foods from the diet can resolve the issue. GI problems can also stem from a combination of environmental or genetic factors, such as in the case of irritable bowel syndrome (IBS). Disruptions in the gut microbiome, such as those caused by taking antibiotics, can also lead to GI issues. In both scenarios, maintaining a balanced diet as much as possible with foods that support a healthy microbiome—such as fruits, vegetables, whole grains, and probiotic foods—can often significantly reduce symptoms and improve gut health.
What are the best foods for gut health?
Maintaining a balanced microbiome is essential for gut health, and this is best achieved through a varied diet rich in fruits, vegetables, and probiotic foods. Fruits and vegetables provide essential nutrients and fiber, which nourish the beneficial bacteria in the gut. Probiotic foods, which are those that contain live bacteria, are also great for gut health. Consuming probiotic foods and drinks, such as yogurt, kefir, kombucha, and tempeh, can help support the microbiome by contributing to the diversity of bacteria within the gut.
When should I see a dietitian for GI issues?
Many people can benefit from seeing a dietitian for GI issues. In general, most dietitians are knowledgeable about what foods support gut health and may help clients choose foods that support a healthy GI system, such as fruits and vegetables high in fiber or foods high in probiotics. Dietitians may be especially beneficial to clients with known gastrointestinal concerns, such as irritable bowel syndrome (IBS) or gastroesophageal reflux disease (GERD). For clients diagnosed with these or similar conditions, dietitians can help clients identify food triggers and develop a meal plan for the client that minimizes symptoms. Dietitians may also work with clients who are having gastrointestinal distress (such as bloating, gas, constipation, diarrhea, etc.) but are not aware of the cause of their symptoms. In such cases, dietitians may be able to help the client identify the cause of the GI distress and coordinate with other medical professionals to help the client better manage their symptoms.