Gastrointestinal (GI) Nutritionists and Dietitians in Denver, CO
Catherine A. Layden
Nutritionist/Dietitian, MNT, BS, CGP, BCHN®
1 Endorsed
Online Only
Waitlist for new clients
I can help you heal leaky gut, digestive pain, food intolerances/ sensitivities, autoimmune conditions and celiac damage.
I serve clients anywhere, offering phone & virtual consultations. I welcome tough, mystery cases! I focus on the gut-brain connection to balance the digestive, nervous and immune systems. I specialize in gut health, celiac disease & non-celiac gluten sensitivity (Certified Gluten Practitioner) and create plans to clear painful, systemic food reactions.
I can help you heal leaky gut, digestive pain, food intolerances/ sensitivities, autoimmune conditions and celiac damage.
I serve clients anywhere, offering phone & virtual consultations. I welcome tough, mystery cases! I focus on the gut-brain connection to balance the digestive, nervous and immune systems. I specialize in gut health, celiac disease & non-celiac gluten sensitivity (Certified Gluten Practitioner) and create plans to clear painful, systemic food reactions.
Whether it’s ARFID, Autism, slow weight gain, or gut issues like constipation, you’re looking for real answers.
I specialize in picky eating, feeding difficulties, ARFID, Pediatric Feeding Disorder, growth concerns, and GI issues. I’m trained in the SOS Approach to Feeding, AEIOU Feeding, and Nutrition for ARFID. I offer virtual care that blends feeding therapy strategies with functional nutrition. I offer functional micronutrient + stool testing to optimize health.
Whether it’s ARFID, Autism, slow weight gain, or gut issues like constipation, you’re looking for real answers.
I specialize in picky eating, feeding difficulties, ARFID, Pediatric Feeding Disorder, growth concerns, and GI issues. I’m trained in the SOS Approach to Feeding, AEIOU Feeding, and Nutrition for ARFID. I offer virtual care that blends feeding therapy strategies with functional nutrition. I offer functional micronutrient + stool testing to optimize health.
Whether we work together in person or remotely, you will get 3 months of unlimited one on one support with weekly follow ups, body composition analyses, a personalized nutrition plan, DNA testing and custom menus with recipes and grocery lists! Traditional diets with a one-size-fits-all approach are a thing of the past! With a registered dietitian as your guide, you will learn how to nourish your body based on your unique needs for better long-term health and weight loss results. My clients get amazing results and you can too! Schedule a free phone consultation to learn more! https://ScheduleCallWithKassandra.as.me/
Whether we work together in person or remotely, you will get 3 months of unlimited one on one support with weekly follow ups, body composition analyses, a personalized nutrition plan, DNA testing and custom menus with recipes and grocery lists! Traditional diets with a one-size-fits-all approach are a thing of the past! With a registered dietitian as your guide, you will learn how to nourish your body based on your unique needs for better long-term health and weight loss results. My clients get amazing results and you can too! Schedule a free phone consultation to learn more! https://ScheduleCallWithKassandra.as.me/
Cassie Petro
Nutritionist/Dietitian, MS, CN, CNS
1 Endorsed
Denver, CO 80215
Waitlist for new clients
I work with toddlers, children, teens, and adults with digestive, metabolic, autoimmune, and chronic conditions to improve their quality of life.
Our lives revolve around and depend on food, which is why nurturing your relationship to food is crucial to your health and something I strive to help strengthen. My approach to nutrition therapy is collaborative and personalized to optimize function within the whole body. Evidence-based nutrition science, health coaching, and trauma-informed care guide my practice to meet the needs of each individual I work with. I recognize the various challenges that can impact proper nutrition and aim to reduce internal and external limitations through nutrition education, empowerment, and behavior change.
I work with toddlers, children, teens, and adults with digestive, metabolic, autoimmune, and chronic conditions to improve their quality of life.
Our lives revolve around and depend on food, which is why nurturing your relationship to food is crucial to your health and something I strive to help strengthen. My approach to nutrition therapy is collaborative and personalized to optimize function within the whole body. Evidence-based nutrition science, health coaching, and trauma-informed care guide my practice to meet the needs of each individual I work with. I recognize the various challenges that can impact proper nutrition and aim to reduce internal and external limitations through nutrition education, empowerment, and behavior change.
Through my experience, I have fine-tuned my focus areas towards gastrointestinal disorders, autoimmune conditions, sports nutrition, intuitive eating and disease prevention.
I offer a integrative approach to care, considering the interconnected relationships between food patterns and habits, physical activity and movement, stress management and resilience, sleep quality and restoration as well as other lifestyle factors.
Through my experience, I have fine-tuned my focus areas towards gastrointestinal disorders, autoimmune conditions, sports nutrition, intuitive eating and disease prevention.
I offer a integrative approach to care, considering the interconnected relationships between food patterns and habits, physical activity and movement, stress management and resilience, sleep quality and restoration as well as other lifestyle factors.
I specialize in eating disorders, gastrointestinal disorders, ADHD, mental health, and hormone health all through a functional nutrition lens.
Hello! As a dietitian part of the Essential Nutrition group practice, my approach to nutrition counseling is grounded in compassionate care and genuine connection, creating a safe and supportive space where you feel heard and understood. I aim to simplify the complexity of nutrition through education and ongoing support, helping you build confidence and a more sustainable relationship with food.
I specialize in eating disorders, gastrointestinal disorders, ADHD, mental health, and hormone health all through a functional nutrition lens.
Hello! As a dietitian part of the Essential Nutrition group practice, my approach to nutrition counseling is grounded in compassionate care and genuine connection, creating a safe and supportive space where you feel heard and understood. I aim to simplify the complexity of nutrition through education and ongoing support, helping you build confidence and a more sustainable relationship with food.
We specialize in eating disorder care for individuals & families, as well as gut health, chronic illness, blood sugar balance & more.
Looking for a nutrition professional who listens & takes your concerns to heart? Who tailors advice to YOUR unique needs? Who communicates with your healthcare providers on your behalf? At Essential Nutrition we care about your health & well-being. We take great pride in making sure we provide the best nutritional care possible. We are a group practice of Registered Dietitians who specialize in a variety of health conditions. We are "anti-dieting," "pro-peace" with food and bodies; and we blend evidence-based care with best practices of integrative medicine. We LOVE what we do. And we would love to help you! Please contact us today!
We specialize in eating disorder care for individuals & families, as well as gut health, chronic illness, blood sugar balance & more.
Looking for a nutrition professional who listens & takes your concerns to heart? Who tailors advice to YOUR unique needs? Who communicates with your healthcare providers on your behalf? At Essential Nutrition we care about your health & well-being. We take great pride in making sure we provide the best nutritional care possible. We are a group practice of Registered Dietitians who specialize in a variety of health conditions. We are "anti-dieting," "pro-peace" with food and bodies; and we blend evidence-based care with best practices of integrative medicine. We LOVE what we do. And we would love to help you! Please contact us today!
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.
Welcome! I'm Ali Fox, a registered dietitian in Bozeman Montana. I graduated from Montana State University (MSU) with a Bachelor of Science in Food and Nutrition, and completed my post graduate internship at MSU with a focus on Medical Nutrition Therapy. Following graduation, I developed a passion for helping those suffering with eating disorders and disordered eating, and have dedicated my career to helping clients heal their relationship with food, exercise and their body.
Welcome! I'm Ali Fox, a registered dietitian in Bozeman Montana. I graduated from Montana State University (MSU) with a Bachelor of Science in Food and Nutrition, and completed my post graduate internship at MSU with a focus on Medical Nutrition Therapy. Following graduation, I developed a passion for helping those suffering with eating disorders and disordered eating, and have dedicated my career to helping clients heal their relationship with food, exercise and their body.
Do your clients have chronic inflammatory health problems such as heartburn, irritable bowel syndrome (IBS), headaches, migraines, arthritis, Crohn's, colitis, Eosinophilic Esophagitis, sinusitis, fibromyalgia, chronic pain or eczema? Get them well quickly by becoming a Certified LEAP Therapist! I've used the Evidence-Based LEAP Protocol based on MRT Testing since 2002 and I still think it's the best protocol for well-selected clients! My Mentoring comes to you at no additional cost!
Do your clients have chronic inflammatory health problems such as heartburn, irritable bowel syndrome (IBS), headaches, migraines, arthritis, Crohn's, colitis, Eosinophilic Esophagitis, sinusitis, fibromyalgia, chronic pain or eczema? Get them well quickly by becoming a Certified LEAP Therapist! I've used the Evidence-Based LEAP Protocol based on MRT Testing since 2002 and I still think it's the best protocol for well-selected clients! My Mentoring comes to you at no additional cost!
Through advanced testing, such as micronutrient analysis, food allergies and sensitivities, hormone panels, gene variants, and gut microbiome assessments, I help uncover imbalances and provide targeted interventions tailored to each individual’s unique needs.
Are you experiencing frequent migraines, chronic digestive problems, fatigue and joint pain, let a Certified LEAP Therapist experienced in an integrative approach to food allergies, sensitivities, and intolerances help you "calm your immune system, heal your GI tract, and improve your long term health. MRT/LEAP can help you!
Through advanced testing, such as micronutrient analysis, food allergies and sensitivities, hormone panels, gene variants, and gut microbiome assessments, I help uncover imbalances and provide targeted interventions tailored to each individual’s unique needs.
Are you experiencing frequent migraines, chronic digestive problems, fatigue and joint pain, let a Certified LEAP Therapist experienced in an integrative approach to food allergies, sensitivities, and intolerances help you "calm your immune system, heal your GI tract, and improve your long term health. MRT/LEAP can help you!
I work with people for sports nutrition, weight management, gut and food sensitivity health, chronic disease management, pregnancy, and every aspect of wellness in a functional medicine model.
I offer support and education, delivered in a way that my clients have described as understandable and in depth, so you are feeling better and performing your best. I'll look at all aspects of your lifestyle and add food sensitivity testing or micro-nutrient testing as needed. I have helped hundreds of people over the last 9 years through MRT food testing.
I work with people for sports nutrition, weight management, gut and food sensitivity health, chronic disease management, pregnancy, and every aspect of wellness in a functional medicine model.
I offer support and education, delivered in a way that my clients have described as understandable and in depth, so you are feeling better and performing your best. I'll look at all aspects of your lifestyle and add food sensitivity testing or micro-nutrient testing as needed. I have helped hundreds of people over the last 9 years through MRT food testing.
Kristy specializes in nutrition, epigenetics, and neural entrainment empowering people to maximize their health. Using scientific tools and evidence-based research, I develop a unique program customized to fit your health and wellness needs. Health is like a 7 layer dip: diet, lifestyle, environment, family history, diagnoses, signs & symptoms, and epigenetics. Your genes make up about 30% of your health. While you can't control the genes you get you can support where you have inherent weaknesses.
Kristy specializes in nutrition, epigenetics, and neural entrainment empowering people to maximize their health. Using scientific tools and evidence-based research, I develop a unique program customized to fit your health and wellness needs. Health is like a 7 layer dip: diet, lifestyle, environment, family history, diagnoses, signs & symptoms, and epigenetics. Your genes make up about 30% of your health. While you can't control the genes you get you can support where you have inherent weaknesses.
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.
I provide advanced level integrative and functional nutritional care as well as homeopathy. I help people who are struggling with difficult chronic, complicated health issues who would like to add nutrition and homeopathy as a complement to their conventional medical care. I use nutritional testing to help pinpoint the root cause of your symptoms and to help balance your nutritional biochemistry. I also provide group coaching for people struggling with emotional and stress overeating. Please visit my website for more information and to book a free discovery call www.nutritionbymargo.com.
I provide advanced level integrative and functional nutritional care as well as homeopathy. I help people who are struggling with difficult chronic, complicated health issues who would like to add nutrition and homeopathy as a complement to their conventional medical care. I use nutritional testing to help pinpoint the root cause of your symptoms and to help balance your nutritional biochemistry. I also provide group coaching for people struggling with emotional and stress overeating. Please visit my website for more information and to book a free discovery call www.nutritionbymargo.com.
In addition, I have a special passion for working with individuals with eating disorders, athletes/dancers, weight management, and GI conditions/food allergies.
I ensure with each are of focus, I provide individualized care and nutrition recommendations that are tailored toward the client to allow for the best results in improving overall health and quality of life!
In addition, I have a special passion for working with individuals with eating disorders, athletes/dancers, weight management, and GI conditions/food allergies.
I ensure with each are of focus, I provide individualized care and nutrition recommendations that are tailored toward the client to allow for the best results in improving overall health and quality of life!
Ready to get rid of bloating, digestive issues, and and chronic fatigue?
I'm Becky, a dietitian with a passion for helping you feel amazing in your body. I offer both in-person and virtual nutrition counseling. I also offer functional lab testing to help you get to the root of your symptoms.
Ready to get rid of bloating, digestive issues, and and chronic fatigue?
I'm Becky, a dietitian with a passion for helping you feel amazing in your body. I offer both in-person and virtual nutrition counseling. I also offer functional lab testing to help you get to the root of your symptoms.
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.
After 30 years of gut issues and many specialists, she wrote to me after a few months of working together:
“I want you to know that this Thanksgiving I am grateful for you.
Do you feel like you’re doing everything right, but your weight, energy, digestion, or blood sugar still aren’t where they should be? Many people I work with are frustrated. They’ve tried diets, seen specialists, and tried to be healthy, yet their body doesn’t respond the way it once did. Often the issue isn’t willpower. Your metabolism may simply need the right support. Together we make small, simple changes to the food & lifestyle choices you make daily—guided by science, & tailored to your body. My clients report sustainable weight loss, steadier energy, improved digestion, blood sugar balance, strong bones, & renewed confidence.
After 30 years of gut issues and many specialists, she wrote to me after a few months of working together:
“I want you to know that this Thanksgiving I am grateful for you.
Do you feel like you’re doing everything right, but your weight, energy, digestion, or blood sugar still aren’t where they should be? Many people I work with are frustrated. They’ve tried diets, seen specialists, and tried to be healthy, yet their body doesn’t respond the way it once did. Often the issue isn’t willpower. Your metabolism may simply need the right support. Together we make small, simple changes to the food & lifestyle choices you make daily—guided by science, & tailored to your body. My clients report sustainable weight loss, steadier energy, improved digestion, blood sugar balance, strong bones, & renewed confidence.
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.
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.