Irritable Bowel Syndrome (IBS) Nutritionists and Dietitians in Phoenix, AZ
Maybe you’ve been diagnosed with IBS, SIBO, or GERD… or told everything looks “normal” and sent on your way.
We’re a team of GI Dietitians who’ve specialized in digestive issues since 2012. We’ve helped thousands of clients finally get answers, calm chronic symptoms, and rebuild a resilient gut using personalized nutrition therapy, advanced testing, and step-by-step support—so they can enjoy a wide variety of foods again.
Maybe you’ve been diagnosed with IBS, SIBO, or GERD… or told everything looks “normal” and sent on your way.
We’re a team of GI Dietitians who’ve specialized in digestive issues since 2012. We’ve helped thousands of clients finally get answers, calm chronic symptoms, and rebuild a resilient gut using personalized nutrition therapy, advanced testing, and step-by-step support—so they can enjoy a wide variety of foods again.
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.
Whether you are suffering with hormone imbalances, GI symptoms, high cholesterol, diabetes, migraines, infertility- or whatever condition decreasing your quality of life- you know deep down that nutrition is a big part of the solution, but you don’t know where to start. Conflicting health and nutrition information from Dr. Google, family & friends, doctors, celebrities and the media has you confused and overwhelmed. You don't know whether to go keto, stop eating eggs, be a vegan or drink celery juice 3x/day. What you DO know is that you are ready to take control of your health and need someone to guide you in the right direction.
Whether you are suffering with hormone imbalances, GI symptoms, high cholesterol, diabetes, migraines, infertility- or whatever condition decreasing your quality of life- you know deep down that nutrition is a big part of the solution, but you don’t know where to start. Conflicting health and nutrition information from Dr. Google, family & friends, doctors, celebrities and the media has you confused and overwhelmed. You don't know whether to go keto, stop eating eggs, be a vegan or drink celery juice 3x/day. What you DO know is that you are ready to take control of your health and need someone to guide you in the right direction.
Olivia is a registered dietitian dedicated to helping individuals of all ages take a non-diet approach to nutrition while honoring both their bodies and mental health. She specializes in eating disorders, disordered eating, and intuitive and mindful eating, providing a safe space for clients to explore and challenge difficult food beliefs. Olivia believes in meeting clients where they are in their relationship with food and body to support meaningful, lasting change. She enjoys helping clients discover what healthy eating looks like in their own lives and creating a realistic sense of balance.
Olivia is a registered dietitian dedicated to helping individuals of all ages take a non-diet approach to nutrition while honoring both their bodies and mental health. She specializes in eating disorders, disordered eating, and intuitive and mindful eating, providing a safe space for clients to explore and challenge difficult food beliefs. Olivia believes in meeting clients where they are in their relationship with food and body to support meaningful, lasting change. She enjoys helping clients discover what healthy eating looks like in their own lives and creating a realistic sense of balance.
I provide contracted nutrition therapy and cycle menu services for group homes, behavioral health centers, and care facilities. I also offer personal chef services with medically tailored meals prepared in a licensed commercial kitchen. Clients managing weight loss, diabetes, PCOS, or chronic conditions receive macro-balanced support from a dietitian-chef. Tailored Bites Nutrition Concierge blends clinical care with culinary support to help you nourish, heal, and thrive.
I provide contracted nutrition therapy and cycle menu services for group homes, behavioral health centers, and care facilities. I also offer personal chef services with medically tailored meals prepared in a licensed commercial kitchen. Clients managing weight loss, diabetes, PCOS, or chronic conditions receive macro-balanced support from a dietitian-chef. Tailored Bites Nutrition Concierge blends clinical care with culinary support to help you nourish, heal, and thrive.
Our Registered Dietitian Nutritionists work with you individually to formulate a personalized, sustainable nutrition plan. There's a lot of contradictory information about what and how to eat and it can be overwhelming. We are the largest team of dietitian nutritionists in the area and have over 15 years of experience helping individuals reach their health goals realistically, sustainably and with compassion. We have a RDN for everyone - whether you are managing a condition such as diabetes or heart disease, weight issues, eating disorders, vegetarian, adolescents, sports nutrition and more.
Our Registered Dietitian Nutritionists work with you individually to formulate a personalized, sustainable nutrition plan. There's a lot of contradictory information about what and how to eat and it can be overwhelming. We are the largest team of dietitian nutritionists in the area and have over 15 years of experience helping individuals reach their health goals realistically, sustainably and with compassion. We have a RDN for everyone - whether you are managing a condition such as diabetes or heart disease, weight issues, eating disorders, vegetarian, adolescents, sports nutrition and more.
Would you like help working on your relationship with food and your relationship with your body? There are so many confusing nutrition messages out there and no single plan works for every person. If you're looking for a dietitian with varied experience and a nonjudgemental approach, I would love to talk with you. With a whole-person approach, I meet people where they're at and help them set reasonable, attainable wellness goals. I use a non-diet, trauma-informed approach with HAES (Health at Every Size) alignment and Intuitive Eating at the forefront.
Would you like help working on your relationship with food and your relationship with your body? There are so many confusing nutrition messages out there and no single plan works for every person. If you're looking for a dietitian with varied experience and a nonjudgemental approach, I would love to talk with you. With a whole-person approach, I meet people where they're at and help them set reasonable, attainable wellness goals. I use a non-diet, trauma-informed approach with HAES (Health at Every Size) alignment and Intuitive Eating at the forefront.
Uhling Consulting is a group of Registered Dietitians (RDs) that offer medical nutrition therapy/nutrition counseling. We offer a private setting for one-on-one nutrition counseling. Our RDs implement evidence-based practice, along with professional judgment, in order to achieve optimum care and positive nutrition and health outcomes.
Uhling Consulting is a group of Registered Dietitians (RDs) that offer medical nutrition therapy/nutrition counseling. We offer a private setting for one-on-one nutrition counseling. Our RDs implement evidence-based practice, along with professional judgment, in order to achieve optimum care and positive nutrition and health outcomes.
Are you struggling with anxiety around meals, guilt after eating, or physical issues like digestive problems or hormonal imbalances? Are you feeling stuck in a cycle of dieting, restriction, or binging with no end in sight? Maybe you’re watching your child struggle with body image or refusing to eat, leaving you feeling worried and helpless. We understand that healing from an eating disorder isn’t just about food—it’s about rebuilding trust with your body and mind. Our personalized, non-judgmental approach helps you develop healthy habits. Our dietitians are here to guide you in reclaiming your health and finding long-term balance.
Are you struggling with anxiety around meals, guilt after eating, or physical issues like digestive problems or hormonal imbalances? Are you feeling stuck in a cycle of dieting, restriction, or binging with no end in sight? Maybe you’re watching your child struggle with body image or refusing to eat, leaving you feeling worried and helpless. We understand that healing from an eating disorder isn’t just about food—it’s about rebuilding trust with your body and mind. Our personalized, non-judgmental approach helps you develop healthy habits. Our dietitians are here to guide you in reclaiming your health and finding long-term balance.
My ideal clients are individuals seeking support for disordered eating, eating disorders, gastrointestinal health, diabetes, and overall wellness. They often feel overwhelmed by nutrition information or stuck in restrictive patterns and want a more balanced, sustainable approach. I provide evidence-based, bilingual (English and Spanish) care that is practical and personalized. Together, we focus on building realistic habits, improving health, and creating long-term change in a supportive, non-judgmental space.
My ideal clients are individuals seeking support for disordered eating, eating disorders, gastrointestinal health, diabetes, and overall wellness. They often feel overwhelmed by nutrition information or stuck in restrictive patterns and want a more balanced, sustainable approach. I provide evidence-based, bilingual (English and Spanish) care that is practical and personalized. Together, we focus on building realistic habits, improving health, and creating long-term change in a supportive, non-judgmental space.
Danielle’s ideal client is a bariatric patient struggling to meet daily protein needs. Common concerns include low energy, confusion about which foods are appropriate, and uncertainty around high-protein sources. Clients often want guidance on protein goals and support with staying consistent with bariatric multivitamins.
Danielle’s ideal client is a bariatric patient struggling to meet daily protein needs. Common concerns include low energy, confusion about which foods are appropriate, and uncertainty around high-protein sources. Clients often want guidance on protein goals and support with staying consistent with bariatric multivitamins.
Are you exasperated with your exhaustion? Struggling with digestive issues like pain, bloating, constipation or diarrhea that make you feel miserable? Does it seem like no matter what diet you try, your list of "safe foods" keeps dwindling? Ever wonder if you will be able to move beyond your "mystery issues"? I get it 100%. I struggled with intense fatigue, hormone imbalances, and digestive issues for years, and after I healed myself with a functional nutrition approach, I made it my mission to help others do the same. I have helped 100's of clients over the last 15 years transform their health & reclaim their vibrance.
Are you exasperated with your exhaustion? Struggling with digestive issues like pain, bloating, constipation or diarrhea that make you feel miserable? Does it seem like no matter what diet you try, your list of "safe foods" keeps dwindling? Ever wonder if you will be able to move beyond your "mystery issues"? I get it 100%. I struggled with intense fatigue, hormone imbalances, and digestive issues for years, and after I healed myself with a functional nutrition approach, I made it my mission to help others do the same. I have helped 100's of clients over the last 15 years transform their health & reclaim their vibrance.
I hold a Certificate of Training in Adult and Pediatric Obesity (Commission on Dietetic Registration) and I’m certified in the Low Fodmap Diet for IBS management.
Specialties include sports nutrition; prediabetes and type 2 diabetes (non-insulin dependent); IBS and digestive health (Low FODMAP); food allergies/intolerances; heart health; mindful/intuitive and plant-based eating; weight management (bariatrics, GLP-1s); fatty liver; and women’s health.
I hold a Certificate of Training in Adult and Pediatric Obesity (Commission on Dietetic Registration) and I’m certified in the Low Fodmap Diet for IBS management.
Specialties include sports nutrition; prediabetes and type 2 diabetes (non-insulin dependent); IBS and digestive health (Low FODMAP); food allergies/intolerances; heart health; mindful/intuitive and plant-based eating; weight management (bariatrics, GLP-1s); fatty liver; and women’s health.
Do you struggle with rigid food rules, chronic dieting, or constantly thinking about food? Have you spent a lot of time trying to balance performance goals, recovery, and everyday life without burning out? I help you with navigating disordered eating or eating disorder recovery, athletic performance at any level, and achieving a calmer, more intuitive relationship with food while supporting energy, performance, and overall well-being.
Do you struggle with rigid food rules, chronic dieting, or constantly thinking about food? Have you spent a lot of time trying to balance performance goals, recovery, and everyday life without burning out? I help you with navigating disordered eating or eating disorder recovery, athletic performance at any level, and achieving a calmer, more intuitive relationship with food while supporting energy, performance, and overall well-being.
Krissy helps clients take the stress out of eating and find confidence and joy in nourishing themselves. She was inspired to become a Registered Dietitian after navigating her own health challenges involving food, and she brings an empathetic lens to supporting clients on their own health journeys. Krissy works with clients to explore and improve their relationship with food through an “all foods fit” approach, often incorporating intuitive and mindful eating practices.
Krissy helps clients take the stress out of eating and find confidence and joy in nourishing themselves. She was inspired to become a Registered Dietitian after navigating her own health challenges involving food, and she brings an empathetic lens to supporting clients on their own health journeys. Krissy works with clients to explore and improve their relationship with food through an “all foods fit” approach, often incorporating intuitive and mindful eating practices.
Registered Dietitians specializing in a variety of medical and health conditions for all ages.
Meet The Owner/Director: Thomas J Hellyer is a Registered Dietitian in Las Vegas, Nevada. He graduated with honors from Joan C. Edwards School Of Medicine, Marshall University. Having more than 10 years of diverse experience with a variety of medical conditions, Thomas affiliates with several hospitals and cooperates with many other doctors and specialists.
Registered Dietitians specializing in a variety of medical and health conditions for all ages.
Meet The Owner/Director: Thomas J Hellyer is a Registered Dietitian in Las Vegas, Nevada. He graduated with honors from Joan C. Edwards School Of Medicine, Marshall University. Having more than 10 years of diverse experience with a variety of medical conditions, Thomas affiliates with several hospitals and cooperates with many other doctors and specialists.
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.
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.
Christi (she/her) is a registered dietitian, a Certified Diabetes Care and Education Specialist (CDCES), and a Lifestyle Coach for the Diabetes Prevention Program. She studied dietetics and dance at Michigan State University and completed a master’s degree in applied nutrition at Russell Sage College. She helps clients with a variety of health concerns and specializes in diabetes, metabolic disorders, mental health conditions, digestion issues and weight concerns. Christi is LGBTQ+ ally with years of experience providing inclusive care.
Christi (she/her) is a registered dietitian, a Certified Diabetes Care and Education Specialist (CDCES), and a Lifestyle Coach for the Diabetes Prevention Program. She studied dietetics and dance at Michigan State University and completed a master’s degree in applied nutrition at Russell Sage College. She helps clients with a variety of health concerns and specializes in diabetes, metabolic disorders, mental health conditions, digestion issues and weight concerns. Christi is LGBTQ+ ally with years of experience providing inclusive care.
Do you struggle with chronic dieting, issues with food and body image, or wanting a more peaceful relationship with food? Have you spent a lot of time feeling confused, discouraged, or told what to do instead of supported? You may be interested in plant-based, vegetarian, or vegan eating and want guidance that feels collaborative, realistic, and empowering. You’re looking for education, accountability, and support so you can make informed health choices and feel more at ease in your body.
Do you struggle with chronic dieting, issues with food and body image, or wanting a more peaceful relationship with food? Have you spent a lot of time feeling confused, discouraged, or told what to do instead of supported? You may be interested in plant-based, vegetarian, or vegan eating and want guidance that feels collaborative, realistic, and empowering. You’re looking for education, accountability, and support so you can make informed health choices and feel more at ease in your body.
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.