Functional Medicine Nutritionist Nutritionists and Dietitians in Washington

Photo of Carly Simpson - Bellingham Family Nutrition — Carly Simpson, Nutritionist/Dietitian, MS, RDN, CD
Bellingham Family Nutrition — Carly Simpson
Nutritionist/Dietitian, MS, RDN, CD
Bellingham, WA 98229
Hi, I’m Carly! I’m a Registered Dietitian Nutritionist specializing in women’s health nutrition, prenatal and postpartum care, and pediatric and family nutrition. I support individuals and families through pregnancy, postpartum recovery, breastfeeding, infancy, and childhood with practical, evidence-based guidance designed for real life. My approach is weight-neutral, non-diet, and family-centered, focused on building sustainable habits without guilt, restriction, or pressure.
Hi, I’m Carly! I’m a Registered Dietitian Nutritionist specializing in women’s health nutrition, prenatal and postpartum care, and pediatric and family nutrition. I support individuals and families through pregnancy, postpartum recovery, breastfeeding, infancy, and childhood with practical, evidence-based guidance designed for real life. My approach is weight-neutral, non-diet, and family-centered, focused on building sustainable habits without guilt, restriction, or pressure.
(360) 302-4342 View (360) 302-4342
Photo of Danielle Venhuizen, Nutritionist/Dietitian, MS, RD, CD, CLT
Danielle Venhuizen
Nutritionist/Dietitian, MS, RD, CD, CLT
Burien, WA 98166
I work with my clients to treat their health concerns using a natural, whole foods approach, but do incorporate supplements and functional testing when appropriate.
I have advanced training in GI disorders and I am a Certified LEAP Therapist (CLT) which allows me to help guide clients through food sensitivity testing (utilizing the MRT test) and diet treatment protocols. Contact me for more information about the testing and process.
I work with my clients to treat their health concerns using a natural, whole foods approach, but do incorporate supplements and functional testing when appropriate.
I have advanced training in GI disorders and I am a Certified LEAP Therapist (CLT) which allows me to help guide clients through food sensitivity testing (utilizing the MRT test) and diet treatment protocols. Contact me for more information about the testing and process.
(206) 208-1452 View (206) 208-1452
Photo of Amanda Cirie, Nutritionist/Dietitian, MS, CN
Amanda Cirie
Nutritionist/Dietitian, MS, CN
Seattle, WA 98107
It is my passion and purpose to empower people to create and maintain a healthy lifestyle through nutrition, stress management, movement, and healthy relationships. I believe that everyone is unique in their approach to nutrition and I offer my clients the right tools, knowledge and strategies to help them overcome obstacles and regain their health. As as seasoned nutritionist I have worked with a wide range of people from executives and parents to athletes and performing artists, and anyone who loves to eat and wants to learn. My whole foods therapeutic approach and targeted supplemental use are the key to my practice.
It is my passion and purpose to empower people to create and maintain a healthy lifestyle through nutrition, stress management, movement, and healthy relationships. I believe that everyone is unique in their approach to nutrition and I offer my clients the right tools, knowledge and strategies to help them overcome obstacles and regain their health. As as seasoned nutritionist I have worked with a wide range of people from executives and parents to athletes and performing artists, and anyone who loves to eat and wants to learn. My whole foods therapeutic approach and targeted supplemental use are the key to my practice.
(206) 312-5165 View (206) 312-5165
Photo of Joanna Gallo Avery, Nutritionist/Dietitian, MS, RDN, CDCES
Joanna Gallo Avery
Nutritionist/Dietitian, MS, RDN, CDCES
1 Endorsed
Online Only
Using a functional medicine and nutrition approach, I create personalized plans that restore balance, improve energy, and support lasting wellness—from preconception to postpartum.
My ideal client is a woman who’s ready to understand her body on a deeper level. She may be struggling with hormonal changes, fertility challenges, postpartum recovery, digestive issues, or blood sugar imbalance. She wants to feel energized, balanced, and confident again—but is overwhelmed by conflicting advice. She’s looking for compassionate, science-based guidance to finally get to the root of what’s going on and feel like herself again.
Using a functional medicine and nutrition approach, I create personalized plans that restore balance, improve energy, and support lasting wellness—from preconception to postpartum.
My ideal client is a woman who’s ready to understand her body on a deeper level. She may be struggling with hormonal changes, fertility challenges, postpartum recovery, digestive issues, or blood sugar imbalance. She wants to feel energized, balanced, and confident again—but is overwhelmed by conflicting advice. She’s looking for compassionate, science-based guidance to finally get to the root of what’s going on and feel like herself again.
(425) 371-5542 View (425) 371-5542
Photo of Erica Olin - Summit Nutrition Counseling, Nutritionist/Dietitian, MS, RD, CD
Summit Nutrition Counseling
Nutritionist/Dietitian, MS, RD, CD
Online Only
Healthy isn’t about perfection, it’s about feeling nourished, confident, and supported. At Summit, we work with clients navigating eating disorders, disordered eating, body image concerns, ADHD-related nutrition challenges, chronic conditions, pediatric feeding concerns, and prenatal/postpartum needs. Many feel stuck, overwhelmed, or exhausted by dieting. Our compassionate, evidence-based approach helps clients rebuild trust with food, reduce stress around eating, and create realistic habits that support their lives and their families, not control them.
Healthy isn’t about perfection, it’s about feeling nourished, confident, and supported. At Summit, we work with clients navigating eating disorders, disordered eating, body image concerns, ADHD-related nutrition challenges, chronic conditions, pediatric feeding concerns, and prenatal/postpartum needs. Many feel stuck, overwhelmed, or exhausted by dieting. Our compassionate, evidence-based approach helps clients rebuild trust with food, reduce stress around eating, and create realistic habits that support their lives and their families, not control them.
(425) 629-0242 View (425) 629-0242
Photo of Korrin Fotheringham, Nutritionist/Dietitian, MS, RDN, CD
Korrin Fotheringham
Nutritionist/Dietitian, MS, RDN, CD
Spokane, WA 99201
As an Integrative and Functional Medicine provider, I work with your doctor to clear up confusion, sort through health diagnoses and get you back to feeling 100%.
"One cannot think well, love well, sleep well, if one has not dined well." -Virginia Woolf. Food is an integral part of our lives and has the power to transform our mood, appearance and self worth. I work with my clients on their relationship with food to achieve the best version of themselves through balanced nutrition. I use a personalized approach to address specific nutritional needs that truly result in success. My ideal client may be confused about nutrition, struggle with not knowing what to eat to heal their body, experience weight instability or obsess over food choices.
As an Integrative and Functional Medicine provider, I work with your doctor to clear up confusion, sort through health diagnoses and get you back to feeling 100%.
"One cannot think well, love well, sleep well, if one has not dined well." -Virginia Woolf. Food is an integral part of our lives and has the power to transform our mood, appearance and self worth. I work with my clients on their relationship with food to achieve the best version of themselves through balanced nutrition. I use a personalized approach to address specific nutritional needs that truly result in success. My ideal client may be confused about nutrition, struggle with not knowing what to eat to heal their body, experience weight instability or obsess over food choices.
(425) 689-7686 View (425) 689-7686
Photo of Reiko Sudduth - Reiko Sudduth | Rocket Nutrition, Nutritionist/Dietitian, MS, RDN, CD
Reiko Sudduth | Rocket Nutrition
Nutritionist/Dietitian, MS, RDN, CD
Seattle, WA 98115
Are you ready to make a change to improve your health? Do you have questions or concerns regarding nutrition for you or your family? Whether you are looking to prevent a health condition, to heal from a condition or simply to reduce your symptoms, your approach to eating and taking care of yourself can have a profound effect on your health. We can work together to bring clarity and create the best plan to meet your health goals. I provide individualized nutritional counseling to people of all ages to help establish diet and lifestyle habits that serve their unique needs.
Are you ready to make a change to improve your health? Do you have questions or concerns regarding nutrition for you or your family? Whether you are looking to prevent a health condition, to heal from a condition or simply to reduce your symptoms, your approach to eating and taking care of yourself can have a profound effect on your health. We can work together to bring clarity and create the best plan to meet your health goals. I provide individualized nutritional counseling to people of all ages to help establish diet and lifestyle habits that serve their unique needs.
(774) 234-8318 View (774) 234-8318
Photo of Brooke Erickson, Nutritionist/Dietitian, MS, CN
Brooke Erickson
Nutritionist/Dietitian, MS, CN
Online Only
Using functional nutrition, circadian alignment, and mind-body tools, I address root causes of fatigue, inflammation, gut dysfunction, weight gain, and hormone imbalance so your body can shift out of survival mode and thrive again.
You may feel like your body is working against you—persistent fatigue, inflammation, gut issues, anxiety, weight gain, or hormone shifts that never fully resolve. You’ve likely tried different diets, supplements, or providers, yet something still feels off. What you truly want is to understand why this is happening and finally restore your energy, metabolism, and hormone balance so you can feel like yourself again. You’re not looking for another bandaid, you want to stop chasing symptoms and finally address the root cause. Not more restriction, but a steady, resilient foundation for long-term health.
Using functional nutrition, circadian alignment, and mind-body tools, I address root causes of fatigue, inflammation, gut dysfunction, weight gain, and hormone imbalance so your body can shift out of survival mode and thrive again.
You may feel like your body is working against you—persistent fatigue, inflammation, gut issues, anxiety, weight gain, or hormone shifts that never fully resolve. You’ve likely tried different diets, supplements, or providers, yet something still feels off. What you truly want is to understand why this is happening and finally restore your energy, metabolism, and hormone balance so you can feel like yourself again. You’re not looking for another bandaid, you want to stop chasing symptoms and finally address the root cause. Not more restriction, but a steady, resilient foundation for long-term health.
(425) 537-4477 View (425) 537-4477
Photo of Frances Arnold - Namaste Nutritionist, Nutritionist/Dietitian, RDN, CD, CLT, ERYT
Namaste Nutritionist
Nutritionist/Dietitian, RDN, CD, CLT, ERYT
1 Endorsed
Everett, WA 98208
Our functional medicine dietitians will work with you to take a deep dive into how to reduce your health risks.
We are trained in functional nutrition, advanced clinical nutrition, Intuitive Eating and Health at Every Size, as well as yoga and meditation. We use evidence-based science and work with your healthcare providers. From pregnancy planning to seniors, we are experienced in nutrition for all ages. (We do not work with infants at this time.)
Our functional medicine dietitians will work with you to take a deep dive into how to reduce your health risks.
We are trained in functional nutrition, advanced clinical nutrition, Intuitive Eating and Health at Every Size, as well as yoga and meditation. We use evidence-based science and work with your healthcare providers. From pregnancy planning to seniors, we are experienced in nutrition for all ages. (We do not work with infants at this time.)
(425) 292-8637 View (425) 292-8637
Photo of Alyssa B Cockerell - Thriving Nutrition with Alyssa, Nutritionist/Dietitian, MS, CN
Thriving Nutrition with Alyssa
Nutritionist/Dietitian, MS, CN
Online Only
I know how exhausting it feels to do “all the right things”—saving posts, reading books, listening to podcasts—yet still feel stuck, overwhelmed, and frustrated with your body. That’s where I come in. I specialize in creating realistic, integrative nutrition plans that cut through the confusion and actually fit YOUR life. No more obsessing, second-guessing, or starting over again. With hormone-savvy guidance, personalized coaching, and simple, sustainable strategies, I help women finally break free from the cycle of burnout and dieting.
I know how exhausting it feels to do “all the right things”—saving posts, reading books, listening to podcasts—yet still feel stuck, overwhelmed, and frustrated with your body. That’s where I come in. I specialize in creating realistic, integrative nutrition plans that cut through the confusion and actually fit YOUR life. No more obsessing, second-guessing, or starting over again. With hormone-savvy guidance, personalized coaching, and simple, sustainable strategies, I help women finally break free from the cycle of burnout and dieting.
(206) 466-0297 View (206) 466-0297
Photo of Megan Charles, Nutritionist/Dietitian, RDN, CD, LD
Megan Charles
Nutritionist/Dietitian, RDN, CD, LD
10 Endorsed
Online Only
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.
(206) 278-3495 View (206) 278-3495
Photo of Robin Gatter - Robin Gatter Nutrition, Nutritionist/Dietitian, MS, CNS, LDN, NBC-HWC
Robin Gatter Nutrition
Nutritionist/Dietitian, MS, CNS, LDN, NBC-HWC
1 Endorsed
Online Only
Do you have an unhealthy relationship with food? Do you get stressed thinking about what to eat? Have you tried different ways of eating to help you feel better and nothing seems to work? Like you, I struggled. I have ADHD, Thyroid Disease, and had disordered eating patterns for many years. I help people identify the root cause of their illness and incorporate nutritional changes. I know what it's like to have a negative body image and be exhausted from thinking about what I could and couldn't eat. Food should bring joy and satisfaction, not stress.
Do you have an unhealthy relationship with food? Do you get stressed thinking about what to eat? Have you tried different ways of eating to help you feel better and nothing seems to work? Like you, I struggled. I have ADHD, Thyroid Disease, and had disordered eating patterns for many years. I help people identify the root cause of their illness and incorporate nutritional changes. I know what it's like to have a negative body image and be exhausted from thinking about what I could and couldn't eat. Food should bring joy and satisfaction, not stress.
(561) 944-7635 View (561) 944-7635
Photo of Dilbar Murtazina - Nutrition and Wellness Institute, Nutritionist/Dietitian, MD(RU), MS, CN
Nutrition and Wellness Institute
Nutritionist/Dietitian, MD(RU), MS, CN
Bellevue, WA 98004
I offer advanced nutrition services based on medical and holistic functional approach.
A detailed consultation process based on patient’s history, lab test results and lifestyle will determine what diet, lifestyle changes, tests and supplementation are necessary to change the underlying biochemistry. A patient gets a personalized plan designed specifically for their body, and learns how to improve their health both short and long term.
I offer advanced nutrition services based on medical and holistic functional approach.
A detailed consultation process based on patient’s history, lab test results and lifestyle will determine what diet, lifestyle changes, tests and supplementation are necessary to change the underlying biochemistry. A patient gets a personalized plan designed specifically for their body, and learns how to improve their health both short and long term.
(425) 610-9883 View (425) 610-9883
Photo of Hannah Robinson - Ridgeline Nutrition; Hannah Robinson , Nutritionist/Dietitian, MS, CD, RDN
Ridgeline Nutrition; Hannah Robinson
Nutritionist/Dietitian, MS, CD, RDN
1 Endorsed
Online Only
I am dedicated to providing individualized integrative nutrition therapy with a holistic lens. Through my experience, I have fine-tuned my focus areas towards gastrointestinal disorders, autoimmune conditions, sports nutrition, intuitive eating and disease prevention. At times navigating these issues can be incredibly overwhelming, I take the time to work through identifying the puzzle pieces to help you get back on track and feeling like yourself again.
I am dedicated to providing individualized integrative nutrition therapy with a holistic lens. Through my experience, I have fine-tuned my focus areas towards gastrointestinal disorders, autoimmune conditions, sports nutrition, intuitive eating and disease prevention. At times navigating these issues can be incredibly overwhelming, I take the time to work through identifying the puzzle pieces to help you get back on track and feeling like yourself again.
(360) 395-9757 View (360) 395-9757
Photo of Lisa Ackerman, Nutritionist/Dietitian, MS, CNS
Lisa Ackerman
Nutritionist/Dietitian, MS, CNS
3 Endorsed
Online Only
I blend functional nutrition with inclusive weight neutral care to help you feel more confident around all things food, nutrition, and health.
I work with clients who want to find optimal health but are confused about where to start or are feeling stuck by the vague advice their doctor gave them. Together we find a personalized approach to help you with your goal of feeling better, having more energy, and being able to participate in life.
I blend functional nutrition with inclusive weight neutral care to help you feel more confident around all things food, nutrition, and health.
I work with clients who want to find optimal health but are confused about where to start or are feeling stuck by the vague advice their doctor gave them. Together we find a personalized approach to help you with your goal of feeling better, having more energy, and being able to participate in life.
(206) 590-4910 View (206) 590-4910
Photo of Brooke Douglas - Nutrition Authority, PLLC, Nutritionist/Dietitian, CEO, RDN, CD
Nutrition Authority, PLLC
Nutritionist/Dietitian, CEO, RDN, CD
Puyallup, WA 98373
Looking for your own personal nutrition expert? The team of Registered Dietitian Nutritionists (RDN) at Nutrition Authority (in business since 2006) are uniquely qualified to coach you towards a more healthful lifestyle by providing relevant and credible nutrition information in a personalized (one-on-one) and easy-to-understand format. Do you want to age healthfully or miserably? The choice is yours! Your 'soon-to-be' personal nutritionist is ready to meet you! Contacting the nutrition experts at Nutrition Authority is your first step to making a positive decision to improve your health, vitality and wellness.
Looking for your own personal nutrition expert? The team of Registered Dietitian Nutritionists (RDN) at Nutrition Authority (in business since 2006) are uniquely qualified to coach you towards a more healthful lifestyle by providing relevant and credible nutrition information in a personalized (one-on-one) and easy-to-understand format. Do you want to age healthfully or miserably? The choice is yours! Your 'soon-to-be' personal nutritionist is ready to meet you! Contacting the nutrition experts at Nutrition Authority is your first step to making a positive decision to improve your health, vitality and wellness.
(253) 465-6650 View (253) 465-6650
Photo of Shelby Erin Slenkamp - Kokua Lifestyle and Nutrition, Nutritionist/Dietitian, MS, RDN, CD
Kokua Lifestyle and Nutrition
Nutritionist/Dietitian, MS, RDN, CD
Snohomish, WA 98296
An impassioned self- employed private practice Health, Wellness, and Lifestyle expert with 11 years of experience working with individuals wishing to learn about or change their relationship with food and physical activity. Well versed in performing health and nutrition assessments and implementing customized lifestyle plans with a variety of health conditions and clients. Bound and committed to helping individuals achieve symptom remission and improved health through sharing knowledge, professional, and personal experience.
An impassioned self- employed private practice Health, Wellness, and Lifestyle expert with 11 years of experience working with individuals wishing to learn about or change their relationship with food and physical activity. Well versed in performing health and nutrition assessments and implementing customized lifestyle plans with a variety of health conditions and clients. Bound and committed to helping individuals achieve symptom remission and improved health through sharing knowledge, professional, and personal experience.
(425) 549-9875 View (425) 549-9875
Photo of Mairi-Kate Campbell-Gaines - Mairi-Kate Campbell, Nutritionist/Dietitian, MScN, FDNP
Mairi-Kate Campbell
Nutritionist/Dietitian, MScN, FDNP
Online Only
As a clinical nutritionist trained in functional medicine principles, I specialize in working with women 55 and over who are experiencing ongoing health changes—low energy, brain fog, digestive issues, osteoporosis, and more.
Many women notice shifts in their body long before lab markers show changes. These shifts can be confusing and frustrating, especially when the changes feel sudden or unexpected. I use personalized nutrition, and daily habits, to restore strength, vitality, and confidence. A free strategy call can help you take the first step.
As a clinical nutritionist trained in functional medicine principles, I specialize in working with women 55 and over who are experiencing ongoing health changes—low energy, brain fog, digestive issues, osteoporosis, and more.
Many women notice shifts in their body long before lab markers show changes. These shifts can be confusing and frustrating, especially when the changes feel sudden or unexpected. I use personalized nutrition, and daily habits, to restore strength, vitality, and confidence. A free strategy call can help you take the first step.
(360) 526-0184 View (360) 526-0184
Photo of Christina Stapke, Nutritionist/Dietitian, RDN, CD, FMNS
Christina Stapke
Nutritionist/Dietitian, RDN, CD, FMNS
Online Only
We practice Integrative and Functional Medical Nutrition Therapy, which is simply helping you make sense of your symptoms and addressing the root causes of your health concerns, while optimizing your body's ability to heal itself and/or prevent disease and chronic illness.
Do you have digestive issues(bloating/gas, constipation, loose stool, reflux/GERD, SIBO) or an autoimmune condition (Crohn's, Ulcerative colitis, Hashimoto's) keeping you from feeling your best? We'll work together to develop a personalized action plan, taking your current diet and lifestyle habits, environment, gut health, genetics, family history (and much more) into account. We also use specialty testing as a cornerstone of care to eliminate a lot of the guesswork.
We practice Integrative and Functional Medical Nutrition Therapy, which is simply helping you make sense of your symptoms and addressing the root causes of your health concerns, while optimizing your body's ability to heal itself and/or prevent disease and chronic illness.
Do you have digestive issues(bloating/gas, constipation, loose stool, reflux/GERD, SIBO) or an autoimmune condition (Crohn's, Ulcerative colitis, Hashimoto's) keeping you from feeling your best? We'll work together to develop a personalized action plan, taking your current diet and lifestyle habits, environment, gut health, genetics, family history (and much more) into account. We also use specialty testing as a cornerstone of care to eliminate a lot of the guesswork.
(206) 651-5177 View (206) 651-5177
Photo of Lindsay L Henley - Lindsay Henley LLC, Nutritionist/Dietitian, RDN
Lindsay Henley LLC
Nutritionist/Dietitian, RDN
Newport, WA 99156
Lindsay is a functional Dietitian and takes a holistic, individualized approach to nutrition, focusing on identifying and addressing the underlying causes of health issues rather than just managing symptoms, using a combination of nutritional and lifestyle interventions.
I am passionate about gut health (IBS/SIBO specifically), yoga, and coaching people who are suffering from abdominal pain, bloating, altered bowel habits, and chronic stress to help implement practical solutions to their health problems, so they can make confident food choices, experience increased energy levels, and reduce IBS-related symptoms. Living a life free of IBS is truly life changing. I know, because I have experienced it first hand. Contact me to see if working together could benefit you.
Lindsay is a functional Dietitian and takes a holistic, individualized approach to nutrition, focusing on identifying and addressing the underlying causes of health issues rather than just managing symptoms, using a combination of nutritional and lifestyle interventions.
I am passionate about gut health (IBS/SIBO specifically), yoga, and coaching people who are suffering from abdominal pain, bloating, altered bowel habits, and chronic stress to help implement practical solutions to their health problems, so they can make confident food choices, experience increased energy levels, and reduce IBS-related symptoms. Living a life free of IBS is truly life changing. I know, because I have experienced it first hand. Contact me to see if working together could benefit you.
(509) 390-2282 View (509) 390-2282