Medical Nutrition Therapy (MNT) Nutritionists and Dietitians in Portland, OR

Photo of Marissa Weissbuch, Nutritionist/Dietitian, MS, RDN, LDN
Marissa Weissbuch
Nutritionist/Dietitian, MS, RDN, LDN
5 Endorsed
Serves Area
Marissa, a dedicated Registered Dietitian, is passionate about helping others heal their relationship with food. Inspired by her own health journey, she brings empathy, understanding, and practical tools to guide clients in quieting “food noise” and finding sustainable balance. With a whole-person, individualized approach, she simplifies nutrition, making structure and routine attainable. Rejecting diet culture, she empowers clients to nourish their bodies, supporting digestion, metabolism, mental health, skin, and hormones.
Marissa, a dedicated Registered Dietitian, is passionate about helping others heal their relationship with food. Inspired by her own health journey, she brings empathy, understanding, and practical tools to guide clients in quieting “food noise” and finding sustainable balance. With a whole-person, individualized approach, she simplifies nutrition, making structure and routine attainable. Rejecting diet culture, she empowers clients to nourish their bodies, supporting digestion, metabolism, mental health, skin, and hormones.
(213) 263-4843 View (213) 263-4843
Photo of Gina Garrett - Permission Nutrition LLC, Nutritionist/Dietitian, MPP, RD, LD
Permission Nutrition LLC
Nutritionist/Dietitian, MPP, RD, LD
Online Only
Eliminating foods without a medical reason.
Do you struggle with an eating disorder or disordered eating? I would love to support you on your journey to free yourself from a negative relationship with food and your body! I offer nutrition counseling for those diagnosed with anorexia nervosa, bulimia nervosa, binge eating disorder and OSFED. Disordered eating occurs on a spectrum and you do not need to be diagnosed with an eating disorder to be suffering! I also offer nutrition counseling services to help you achieve your health goals whether or not you feel you have disordered eating patterns.
Eliminating foods without a medical reason.
Do you struggle with an eating disorder or disordered eating? I would love to support you on your journey to free yourself from a negative relationship with food and your body! I offer nutrition counseling for those diagnosed with anorexia nervosa, bulimia nervosa, binge eating disorder and OSFED. Disordered eating occurs on a spectrum and you do not need to be diagnosed with an eating disorder to be suffering! I also offer nutrition counseling services to help you achieve your health goals whether or not you feel you have disordered eating patterns.
(971) 803-5192 View (971) 803-5192
Photo of Alisha Murphy - Nourished Care Nutrition, Nutritionist/Dietitian, RD, LDN
Nourished Care Nutrition
Nutritionist/Dietitian, RD, LDN
Online Only
My training includes clinical nutrition therapy and pediatric-focused support, allowing me to provide evidence-based, practical guidance for families.
My ideal client is a parent feeling overwhelmed by picky eating, mealtime stress, or ongoing digestive concerns. They’ve tried advice from the internet and well-meaning friends but still feel unsure what’s actually helpful. They want clear, practical guidance that supports their child’s growth without pressure or rigid rules. Their goal is calmer meals, improved food variety, better digestive comfort, and confidence that they’re doing the right thing for their family.
My training includes clinical nutrition therapy and pediatric-focused support, allowing me to provide evidence-based, practical guidance for families.
My ideal client is a parent feeling overwhelmed by picky eating, mealtime stress, or ongoing digestive concerns. They’ve tried advice from the internet and well-meaning friends but still feel unsure what’s actually helpful. They want clear, practical guidance that supports their child’s growth without pressure or rigid rules. Their goal is calmer meals, improved food variety, better digestive comfort, and confidence that they’re doing the right thing for their family.
(458) 588-2813 View (458) 588-2813
Photo of Angela Hermes, Nutritionist/Dietitian, RDN, LD, CLT
Angela Hermes
Nutritionist/Dietitian, RDN, LD, CLT
1 Endorsed
Serves Area
Do you suffer from an incurable chronic illness? Have you tried multiple treatment options with limited success? Are you tired of feeling sick and tired? If so, please consider adding me to your team! Some of the conditions I typically treat are: Chronic migraine and other headaches, Irritable Bowel Syndrome, Crohn's Disease, Ulcerative Colitis, Lupus, Fibromyalgia, Arthritis, Joint/Muscle Pain, Chronic Fatigue Syndrome, ADD/ADHD, Austism/ASD, Epilepsy, Narcolepsy, Cancer and Cyclic Vomiting syndrome. If you have not found success with treating these or other chronic illnesses then I would love to work with you!
Do you suffer from an incurable chronic illness? Have you tried multiple treatment options with limited success? Are you tired of feeling sick and tired? If so, please consider adding me to your team! Some of the conditions I typically treat are: Chronic migraine and other headaches, Irritable Bowel Syndrome, Crohn's Disease, Ulcerative Colitis, Lupus, Fibromyalgia, Arthritis, Joint/Muscle Pain, Chronic Fatigue Syndrome, ADD/ADHD, Austism/ASD, Epilepsy, Narcolepsy, Cancer and Cyclic Vomiting syndrome. If you have not found success with treating these or other chronic illnesses then I would love to work with you!
(971) 251-4656 View (971) 251-4656
Photo of Lauren Furgiuele, Nutritionist/Dietitian, MS, RDN, LDN
Lauren Furgiuele
Nutritionist/Dietitian, MS, RDN, LDN
Online Only
I’m Lauren, a holistic Registered Dietitian who supports women with PCOS in their 20s through early 40s achieve regular periods with less pain, bloating, and fatigue so they can regain control of their cycles, improve fertility outcomes, and protect their future health against PCOS-related risks. Unlike one-size-fits-all solutions like birth control, restrictive diets, or cookie-cutter group programs, my collaborative and personalized approach empowers clients to build trust in themselves while learning how to best nourish their bodies through tailored and realistic nutrition, lifestyle, and supplement strategies.
I’m Lauren, a holistic Registered Dietitian who supports women with PCOS in their 20s through early 40s achieve regular periods with less pain, bloating, and fatigue so they can regain control of their cycles, improve fertility outcomes, and protect their future health against PCOS-related risks. Unlike one-size-fits-all solutions like birth control, restrictive diets, or cookie-cutter group programs, my collaborative and personalized approach empowers clients to build trust in themselves while learning how to best nourish their bodies through tailored and realistic nutrition, lifestyle, and supplement strategies.
(828) 383-9686 View (828) 383-9686
Photo of Dana Bean - No Guilt Nutrition, Nutritionist/Dietitian, RD, LD
No Guilt Nutrition
Nutritionist/Dietitian, RD, LD
1 Endorsed
Serves Area
Many find themselves feeling stressed and out of control around food. Though it is common, it doesn't have to be your reality! We can work on building nutrition knowledge and a plan to help you learn to trust your body to fuel yourself instead of using a long list of diet rules. I work with clients with disordered eating habits as well as a variety of conditions including binge eating disorder, other eating disorders, diabetes, meal logistics with ADHD or other neurodivergence, prediaebtes, high cholesterol, hyperlipidemia, digestive issues, GERD, and more.
Many find themselves feeling stressed and out of control around food. Though it is common, it doesn't have to be your reality! We can work on building nutrition knowledge and a plan to help you learn to trust your body to fuel yourself instead of using a long list of diet rules. I work with clients with disordered eating habits as well as a variety of conditions including binge eating disorder, other eating disorders, diabetes, meal logistics with ADHD or other neurodivergence, prediaebtes, high cholesterol, hyperlipidemia, digestive issues, GERD, and more.
(541) 631-5142 View (541) 631-5142
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 Mia O'Brien-Combs, Nutritionist/Dietitian, MPH, RDN, LDN
Mia O'Brien-Combs
Nutritionist/Dietitian, MPH, RDN, LDN
5 Endorsed
Serves Area
Hi! I'm Mia (she/her). I’m a Registered Dietitian dedicated to providing culturally centered, accessible, and compassionate nutrition care. I am committed to providing HAES-aligned evidence based care that also honors and celebrates your lived experience. I utilize intuitive eating principles and motivational interviewing with an “all foods fit” and gentle nutrition approach.I will work with you from a place of curiosity and together we will develop tools, skills, and knowledge to better understand and nourish your body while working towards your health goals.
Hi! I'm Mia (she/her). I’m a Registered Dietitian dedicated to providing culturally centered, accessible, and compassionate nutrition care. I am committed to providing HAES-aligned evidence based care that also honors and celebrates your lived experience. I utilize intuitive eating principles and motivational interviewing with an “all foods fit” and gentle nutrition approach.I will work with you from a place of curiosity and together we will develop tools, skills, and knowledge to better understand and nourish your body while working towards your health goals.
(904) 601-1243 View (904) 601-1243
Photo of Brittney Kraai - Root & Vine Integrative Health, Nutritionist/Dietitian, MS, CNS, LDN, CN
Root & Vine Integrative Health
Nutritionist/Dietitian, MS, CNS, LDN, CN
Serves Area
I offer in-person services at my office located inside Sweetgrass Physical Therapy in Corvallis.
You’re probably sick of the bandaid approach by now and want to get to the root-cause of your symptoms like weight gain, blood sugar concerns, PCOS, irregular cycles, or fertility struggles. You’re also probably tired of feeling like your healthcare providers barely listen in the few minutes you get with them (and send you off with a prescription). It’s frustrating to feel like nobody hears your struggle or can provide the support you know deserve. You can be helped and you can feel better - medication and being stuck in this cycle are not your only options! The good news? You’re already on the right track by seeking my help.
I offer in-person services at my office located inside Sweetgrass Physical Therapy in Corvallis.
You’re probably sick of the bandaid approach by now and want to get to the root-cause of your symptoms like weight gain, blood sugar concerns, PCOS, irregular cycles, or fertility struggles. You’re also probably tired of feeling like your healthcare providers barely listen in the few minutes you get with them (and send you off with a prescription). It’s frustrating to feel like nobody hears your struggle or can provide the support you know deserve. You can be helped and you can feel better - medication and being stuck in this cycle are not your only options! The good news? You’re already on the right track by seeking my help.
(541) 813-4440 View (541) 813-4440
Photo of Kerri Holmquist, Nutritionist/Dietitian, RD, CD, RD, CDCES, LDN
Kerri Holmquist
Nutritionist/Dietitian, RD, CD, RD, CDCES, LDN
1 Endorsed
Serves Area
Kerri is a Registered Dietitian, specializing in working with adults and adolescents with Eating Disorders, Disordered Eating, IBS, Diabetes, and Pregnancy Nutrition. She believes that the beauty of her profession is supporting clients to become empowered and confident as they explore what works for them. Kerri takes a lifelong and “food is fun” approach to her sessions, and understands that what may work in one season of life, may not work in the next. Kerri also believes in an all inclusive approach with foods and body types, providing an environment rich in opportunity to build trust and learning for both client and provider.
Kerri is a Registered Dietitian, specializing in working with adults and adolescents with Eating Disorders, Disordered Eating, IBS, Diabetes, and Pregnancy Nutrition. She believes that the beauty of her profession is supporting clients to become empowered and confident as they explore what works for them. Kerri takes a lifelong and “food is fun” approach to her sessions, and understands that what may work in one season of life, may not work in the next. Kerri also believes in an all inclusive approach with foods and body types, providing an environment rich in opportunity to build trust and learning for both client and provider.
(704) 859-2677 View (704) 859-2677
Photo of Christine Madzik, Nutritionist/Dietitian, RDN, LD
Christine Madzik
Nutritionist/Dietitian, RDN, LD
2 Endorsed
Serves Area
Do you feel confused and overwhelmed by what to eat? Have you been feeling "off" for so long you can't remember what normal feels like? Are you struggling with gas, bloating, diarrhea, heartburn, and/or constipation? I provide supportive nutrition counseling for gut problems. I help adults and children who struggle with digestive issues, such as Irritable Bowel Syndrome (IBS), Inflammatory Bowel Disease (IBD), Small Intestinal Overgrowth (SIBO), Candida overgrowth, Gastroesophageal Reflux Disease (GERD), Celiac Disease, and food allergies. We will get to the root of the problem so you can eat with freedom and comfort.
Do you feel confused and overwhelmed by what to eat? Have you been feeling "off" for so long you can't remember what normal feels like? Are you struggling with gas, bloating, diarrhea, heartburn, and/or constipation? I provide supportive nutrition counseling for gut problems. I help adults and children who struggle with digestive issues, such as Irritable Bowel Syndrome (IBS), Inflammatory Bowel Disease (IBD), Small Intestinal Overgrowth (SIBO), Candida overgrowth, Gastroesophageal Reflux Disease (GERD), Celiac Disease, and food allergies. We will get to the root of the problem so you can eat with freedom and comfort.
(541) 204-8959 View (541) 204-8959
Photo of Allison Hoybach, Nutritionist/Dietitian, RD, LDN
Allison Hoybach
Nutritionist/Dietitian, RD, LDN
3 Endorsed
Serves Area
Allison is a registered dietitian who loves people and is passionate about helping individuals achieve their personal health and nutrition goals. Her primary focus has been bariatric support, diabetes, IBS, and plant based nutrition, but her background also includes kidney disease, heart health, gut issues and malnutrition. She strives to empower individuals to make positive and sustainable lifestyle changes. Allison takes time to listen to your nutritional concerns and understand your overall goals. She uses a patient-centered, evidenced-based approach to help you create lasting lifestyle changes.
Allison is a registered dietitian who loves people and is passionate about helping individuals achieve their personal health and nutrition goals. Her primary focus has been bariatric support, diabetes, IBS, and plant based nutrition, but her background also includes kidney disease, heart health, gut issues and malnutrition. She strives to empower individuals to make positive and sustainable lifestyle changes. Allison takes time to listen to your nutritional concerns and understand your overall goals. She uses a patient-centered, evidenced-based approach to help you create lasting lifestyle changes.
(352) 309-0794 View (352) 309-0794
Photo of Brittany Payton, Nutritionist/Dietitian, RDN, LD
Brittany Payton
Nutritionist/Dietitian, RDN, LD
2 Endorsed
Serves Area
Brittany Payton, RD, LD, is a licensed dietitian with over 19 years of experience helping clients heal chronic conditions using food as medicine. After facing her own health challenges, she adopted a root-cause, whole-body approach. Brittany blends functional nutrition, clinical insight, and compassion to create personalized, practical plans. She truly listens to each client, empowering them to make lasting change—no quick fixes or restrictive diets here.
Brittany Payton, RD, LD, is a licensed dietitian with over 19 years of experience helping clients heal chronic conditions using food as medicine. After facing her own health challenges, she adopted a root-cause, whole-body approach. Brittany blends functional nutrition, clinical insight, and compassion to create personalized, practical plans. She truly listens to each client, empowering them to make lasting change—no quick fixes or restrictive diets here.
(615) 909-4087 View (615) 909-4087
Photo of Ashleigh Collins, Nutritionist/Dietitian, MS, RDN, LDN
Ashleigh Collins
Nutritionist/Dietitian, MS, RDN, LDN
Online Only
I provide a complimentary benefit check to see if Nutrition Therapy is covered by your insurance.
Transform Your Health Through Nutrition - Your well-being is at the heart of what I do. With over 10 years of experience in the nutrition and wellness field, I specialize in helping individuals optimize their health through evidence-based nutrition and lifestyle interventions. Whether you’re seeking guidance to manage a chronic health condition, need support building a healthy relationship with food, or simply want to feel your best, I’m here to help.
I provide a complimentary benefit check to see if Nutrition Therapy is covered by your insurance.
Transform Your Health Through Nutrition - Your well-being is at the heart of what I do. With over 10 years of experience in the nutrition and wellness field, I specialize in helping individuals optimize their health through evidence-based nutrition and lifestyle interventions. Whether you’re seeking guidance to manage a chronic health condition, need support building a healthy relationship with food, or simply want to feel your best, I’m here to help.
(503) 782-9192 View (503) 782-9192
Photo of Ashlee Hancock, Nutritionist/Dietitian, MS, RDN, LDN
Ashlee Hancock
Nutritionist/Dietitian, MS, RDN, LDN
3 Endorsed
Serves Area
Ashlee is a registered dietitian with a passion for helping clients build healthier lives through nutrition. She chose dietetics to support individuals in creating sustainable habits while feeling guided and supported throughout their journey. With both personal and professional experience in eating disorder recovery, this population is especially close to her heart. Ashlee is dedicated to helping clients develop a positive relationship with food and their bodies using compassion, evidence-based care, and lived experience.
Ashlee is a registered dietitian with a passion for helping clients build healthier lives through nutrition. She chose dietetics to support individuals in creating sustainable habits while feeling guided and supported throughout their journey. With both personal and professional experience in eating disorder recovery, this population is especially close to her heart. Ashlee is dedicated to helping clients develop a positive relationship with food and their bodies using compassion, evidence-based care, and lived experience.
(515) 375-7850 View (515) 375-7850
Photo of Rose Mattson, Nutritionist/Dietitian, MS, RD, LD
Rose Mattson
Nutritionist/Dietitian, MS, RD, LD
1 Endorsed
Serves Area
Waitlist for new clients
Nutrition therapy is not only about what you eat, but how you think and feel about about food and eating.
I help people heal from eating disorders, disordered eating, and dysfunctional exercise, while also using weight-inclusive medical nutrition therapy to support chronic conditions and body image healing. Conditions I regularly treat include: Celiac disease, pre-diabetes, diabetes, elevated blood pressure & cholesterol, & PCOS.
Nutrition therapy is not only about what you eat, but how you think and feel about about food and eating.
I help people heal from eating disorders, disordered eating, and dysfunctional exercise, while also using weight-inclusive medical nutrition therapy to support chronic conditions and body image healing. Conditions I regularly treat include: Celiac disease, pre-diabetes, diabetes, elevated blood pressure & cholesterol, & PCOS.
(458) 235-4335 View (458) 235-4335
Photo of Dr. Cynthia Esparza, Nutritionist/Dietitian, DCN, MScN
Dr. Cynthia Esparza
Nutritionist/Dietitian, DCN, MScN
Online Only
I work with clients who feel overwhelmed by chronic symptoms such as fatigue, pain, digestive concerns, hormone changes, brain fog, or metabolic issues. Many have been told their labs are “normal” but still do not feel well. They are looking for clarity, structure, and a plan that makes sense. Many want to improve their health but feel uncertain where to begin or worry they may not be successful. They are seeking guidance and a thoughtful partnership to help them move forward.
I work with clients who feel overwhelmed by chronic symptoms such as fatigue, pain, digestive concerns, hormone changes, brain fog, or metabolic issues. Many have been told their labs are “normal” but still do not feel well. They are looking for clarity, structure, and a plan that makes sense. Many want to improve their health but feel uncertain where to begin or worry they may not be successful. They are seeking guidance and a thoughtful partnership to help them move forward.
(503) 868-2819 View (503) 868-2819
Photo of Alie Purcell - AP Nutrition PLLC, Nutritionist/Dietitian, MS
AP Nutrition PLLC
Nutritionist/Dietitian, MS
Online Only
I empower clients to achieve their wellness goals, whether it's disease prevention and management, weight management, or overall lifestyle improvement. I cover all of Washington and Oregon via telehealth.
I empower clients to achieve their wellness goals, whether it's disease prevention and management, weight management, or overall lifestyle improvement. I cover all of Washington and Oregon via telehealth.
(360) 300-4125 View (360) 300-4125
Photo of Ava Ajlouny, Nutritionist/Dietitian, RD
Ava Ajlouny
Nutritionist/Dietitian, RD
1 Endorsed
Online Only
Ava’s ideal client is someone who is curious about nutrition and ready to make real, lasting changes. They want to break free from diets, rebuild their relationship with food, and learn to trust their body’s cues. They’re interested in hormone balance, gut health, anti-inflammatory eating, and sustainable habits that support energy and well-being. They value guidance, education, and accountability as they move toward intuitive eating, joyful movement, and long-term health.
Ava’s ideal client is someone who is curious about nutrition and ready to make real, lasting changes. They want to break free from diets, rebuild their relationship with food, and learn to trust their body’s cues. They’re interested in hormone balance, gut health, anti-inflammatory eating, and sustainable habits that support energy and well-being. They value guidance, education, and accountability as they move toward intuitive eating, joyful movement, and long-term health.
(614) 756-2433 View (614) 756-2433
Photo of Kristen Nyampong, Nutritionist/Dietitian, RDN, LD
Kristen Nyampong
Nutritionist/Dietitian, RDN, LD
Serves Area
My name is Kristen Nyampong, and I’m a Registered Dietitian based in the Dallas–Fort Worth area. I take a person-centered, trauma-informed, and weight-inclusive approach to care. I’m especially passionate about working with individuals in the BIPOC community and those who are vegan, vegetarian, or plant-forward.
My name is Kristen Nyampong, and I’m a Registered Dietitian based in the Dallas–Fort Worth area. I take a person-centered, trauma-informed, and weight-inclusive approach to care. I’m especially passionate about working with individuals in the BIPOC community and those who are vegan, vegetarian, or plant-forward.
(331) 259-8859 View (331) 259-8859