Functional Medicine Nutritionist Nutritionists and Dietitians in California

Photo of Kaytee Hadley - The Anti-Ibs Dietitian, Nutritionist/Dietitian, MSc, RDN, IFMCP, CPT
Kaytee Hadley - The Anti-Ibs Dietitian
Nutritionist/Dietitian, MSc, RDN, IFMCP, CPT
Serves Area
Kaytee is a functional medicine dietitian, with a Masters in Nutrition, Healthspan, and Longevity and is a certified SIBO specialist.
Studies show that up to 78% of people with IBS have a condition called SIBO... which you can get rid of! For 15 years I was told there was nothing I could do about my debilitating GI symptoms– pain, cramps, bloating, all the other things no one wants to talk about. “Everything looks normal. You’re just going to have to live with it. Try managing your stress.” Sound familiar? If so, you’re in the right place. Because I get it! I’ve been there. I’m also now symptom free… why? Because IBS is B.S.! I got to the root cause and you can too!
Kaytee is a functional medicine dietitian, with a Masters in Nutrition, Healthspan, and Longevity and is a certified SIBO specialist.
Studies show that up to 78% of people with IBS have a condition called SIBO... which you can get rid of! For 15 years I was told there was nothing I could do about my debilitating GI symptoms– pain, cramps, bloating, all the other things no one wants to talk about. “Everything looks normal. You’re just going to have to live with it. Try managing your stress.” Sound familiar? If so, you’re in the right place. Because I get it! I’ve been there. I’m also now symptom free… why? Because IBS is B.S.! I got to the root cause and you can too!
(804) 294-4189 View (804) 294-4189
Photo of Jodee Morgan, Nutritionist/Dietitian, MS, CCC, SLP, FNTP
Jodee Morgan
Nutritionist/Dietitian, MS, CCC, SLP, FNTP
Serves Area
I take a bioindividual, root cause approach to functional nutrition with a focus on healing from a variety of chronic conditions through targeted nutrition and supplementation.
Book your free, 15 minute discovery call through the “my website” link!
I take a bioindividual, root cause approach to functional nutrition with a focus on healing from a variety of chronic conditions through targeted nutrition and supplementation.
Book your free, 15 minute discovery call through the “my website” link!
(469) 306-1356 View (469) 306-1356
Photo of Claire A Carlton - Nourish with Claire & Associates LLC, Nutritionist/Dietitian, MS, RD, LD
Nourish with Claire & Associates LLC
Nutritionist/Dietitian, MS, RD, LD
Serves Area
I have received extensive training in nutrition for complex gastrointestinal disorders and integrative & functional medicine nutrition.
Are you looking to optimize your health and nutrition in 2024? Do you suffer from poor energy, digestive disturbances (gas, bloating, constipation, diarrhea), blood sugar imbalances, high cholesterol, autoimmunity or other health concerns? If so, I'd love to guide you in making positive changes to your nutrition and lifestyle to help you reach your health goals. Through my individualized nutrition therapy services, you'll gain confidence in how to appropriately fuel your body. It's my mission to empower you with the nutrition knowledge needed to make LASTING lifestyle changes.
I have received extensive training in nutrition for complex gastrointestinal disorders and integrative & functional medicine nutrition.
Are you looking to optimize your health and nutrition in 2024? Do you suffer from poor energy, digestive disturbances (gas, bloating, constipation, diarrhea), blood sugar imbalances, high cholesterol, autoimmunity or other health concerns? If so, I'd love to guide you in making positive changes to your nutrition and lifestyle to help you reach your health goals. Through my individualized nutrition therapy services, you'll gain confidence in how to appropriately fuel your body. It's my mission to empower you with the nutrition knowledge needed to make LASTING lifestyle changes.
(808) 400-9902 View (808) 400-9902
Photo of Barbara Lewin - Barbara Lewin, RDN, CSSD, LDN, Nutritionist/Dietitian, RDN, CSSD, LDN
Barbara Lewin, RDN, CSSD, LDN
Nutritionist/Dietitian, RDN, CSSD, LDN
Serves Area
I am a registered dietitian (RD), functional nutritionist and sports nutritionist.
I work with a wide range of conditions primarily using whole foods, lifestyle counseling, diet modification, nutritional supplementation, and botanicals. For over 25 years Barbara has been teaching clients effective and realistic ways to improve client's health, and successfully manage their weight.
I am a registered dietitian (RD), functional nutritionist and sports nutritionist.
I work with a wide range of conditions primarily using whole foods, lifestyle counseling, diet modification, nutritional supplementation, and botanicals. For over 25 years Barbara has been teaching clients effective and realistic ways to improve client's health, and successfully manage their weight.
(239) 319-4080 View (239) 319-4080
Photo of Robert J Hildebrandt, Nutritionist/Dietitian, MBA, RDN, CDCES
Robert J Hildebrandt
Nutritionist/Dietitian, MBA, RDN, CDCES
1 Endorsed
Online Only
My ideal client is someone who’s ready for real change but feels stuck. Maybe they’ve tried diets, medications, or programs before, but nothing has worked long-term. They may be struggling with weight, newly diagnosed with type 2 diabetes or prediabetes, or managing chronic issues like high cholesterol or high blood pressure. Many are overwhelmed by conflicting nutrition advice and just want to know what to eat — and how to stick with it. What they really need is a plan that makes sense for their life — not a generic handout or fad diet. They want support from someone who listens, simplifies the process, and keeps them accountable.
My ideal client is someone who’s ready for real change but feels stuck. Maybe they’ve tried diets, medications, or programs before, but nothing has worked long-term. They may be struggling with weight, newly diagnosed with type 2 diabetes or prediabetes, or managing chronic issues like high cholesterol or high blood pressure. Many are overwhelmed by conflicting nutrition advice and just want to know what to eat — and how to stick with it. What they really need is a plan that makes sense for their life — not a generic handout or fad diet. They want support from someone who listens, simplifies the process, and keeps them accountable.
(609) 246-3105 View (609) 246-3105
Photo of Lani Page deGuia, Nutritionist/Dietitian, CNS, LDN, MSACN, MS Ed
Lani Page deGuia
Nutritionist/Dietitian, CNS, LDN, MSACN, MS Ed
Online Only
I am a board licensed Certified Nutrition Specialist and licensed dietitian nutritionist who provides a functional nutrition approach, sensitive to culture and race.
My approach is multifactorial and I work with you to reduce inflammation, improve and optimize gut health, restore core metabolic imbalances and nutrient deficiencies, increase physical activity, improve sleep quality, and improve stress management. I provide personalized meal plans, clinical herbalism recommendations, functional lab testing, and more.
I am a board licensed Certified Nutrition Specialist and licensed dietitian nutritionist who provides a functional nutrition approach, sensitive to culture and race.
My approach is multifactorial and I work with you to reduce inflammation, improve and optimize gut health, restore core metabolic imbalances and nutrient deficiencies, increase physical activity, improve sleep quality, and improve stress management. I provide personalized meal plans, clinical herbalism recommendations, functional lab testing, and more.
(571) 998-1954 View (571) 998-1954
Photo of Marlene Hillyer - Nabi Health, Nutritionist/Dietitian, MS, RDN, CEDS, CDCES, CLT
Nabi Health
Nutritionist/Dietitian, MS, RDN, CEDS, CDCES, CLT
1 Endorsed
Online Only
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.
(206) 905-4812 View (206) 905-4812
Photo of Erica Golden, Nutritionist/Dietitian, RDN, IFNCP
Erica Golden
Nutritionist/Dietitian, RDN, IFNCP
Online Only
I am trained in integrative and functional nutrition and disordered eating, and specialize in the area of mental health.
Are you dealing with IBS, depression, anxiety, or disordered eating? Do you want to heal your gut without restrictive diets? Do you find yourself fearful of food because you’re not sure what will cause symptoms? Have you noticed the powerful impact your mental health and wellness has on your gut symptoms, and vice versa?
I am trained in integrative and functional nutrition and disordered eating, and specialize in the area of mental health.
Are you dealing with IBS, depression, anxiety, or disordered eating? Do you want to heal your gut without restrictive diets? Do you find yourself fearful of food because you’re not sure what will cause symptoms? Have you noticed the powerful impact your mental health and wellness has on your gut symptoms, and vice versa?
(719) 419-8731 View (719) 419-8731
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 Chloe Ring, Nutritionist/Dietitian, MS, CNS
Chloe Ring
Nutritionist/Dietitian, MS, CNS
1 Endorsed
Online Only
My training in functional nutrition has me well suited to address the root cause of imbalance.
Are you struggling with irregular cycles, GI disturbances, weight fluctuations, or conditions like PCOS? Feeling constantly fatigued? You’re not alone. I'm passionate about empowering and educating my clients to support their hormones and overall health. With so much nutrition information available, it's easy to feel lost. That's why my goal is to help you navigate the landscape and create sustainable changes. I offer evidence-based guidance and understand that there's no one-size-fits-all solution when it comes to nutrition therapy. I use an integrative approach combining diet and lifestyle to help you tap into your power.
My training in functional nutrition has me well suited to address the root cause of imbalance.
Are you struggling with irregular cycles, GI disturbances, weight fluctuations, or conditions like PCOS? Feeling constantly fatigued? You’re not alone. I'm passionate about empowering and educating my clients to support their hormones and overall health. With so much nutrition information available, it's easy to feel lost. That's why my goal is to help you navigate the landscape and create sustainable changes. I offer evidence-based guidance and understand that there's no one-size-fits-all solution when it comes to nutrition therapy. I use an integrative approach combining diet and lifestyle to help you tap into your power.
(929) 470-0680 View (929) 470-0680
Photo of Growing Inward Nutrition Collective, Nutritionist/Dietitian, RD, LDN
Growing Inward Nutrition Collective
Nutritionist/Dietitian, RD, LDN
Serves Area
We are passionate about incorporating somatic modalities and integrating functional nutrition approaches and eco-therapy into nutrition counseling.
We understand this might be an exciting and scary leap, so fostering a safe space to explore the intricacies of your relationship with food and body is a priority for me. We aim to promote flexible, individualized eating based on hunger and fullness cues, nutritional needs, and pleasure rather than devise strict meal plans focused on weight control.
We are passionate about incorporating somatic modalities and integrating functional nutrition approaches and eco-therapy into nutrition counseling.
We understand this might be an exciting and scary leap, so fostering a safe space to explore the intricacies of your relationship with food and body is a priority for me. We aim to promote flexible, individualized eating based on hunger and fullness cues, nutritional needs, and pleasure rather than devise strict meal plans focused on weight control.
(626) 605-1838 View (626) 605-1838
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 Nw Pediatric Family Nutrition, Nutritionist/Dietitian
Nw Pediatric Family Nutrition
Nutritionist/Dietitian
Serves Area
We are a team of anti-diet dietitians supporting adults and teens to eat intuitively and improve their relationship with food. Let us, partner, with you to be your nutrition guide, so you can find the solutions that result in positive experiences around food and nourishing your family. We are Registered Dietitians currently working with families virtually or at one of our offices in Portland, Vancouver and our new Bend office.
We are a team of anti-diet dietitians supporting adults and teens to eat intuitively and improve their relationship with food. Let us, partner, with you to be your nutrition guide, so you can find the solutions that result in positive experiences around food and nourishing your family. We are Registered Dietitians currently working with families virtually or at one of our offices in Portland, Vancouver and our new Bend office.
(503) 468-1498 View (503) 468-1498
Photo of Sophia Deahl, Nutritionist/Dietitian, MS, RD, IFMCP
Sophia Deahl
Nutritionist/Dietitian, MS, RD, IFMCP
Serves Area
I'm Sophia, a registered dietitian with a functional medicine certification.
I work with adults who are ready to take control of their health, but feel stuck navigating the overwhelm of conflicting nutrition advice, chronic stress, low energy, or persistent health issues. They want a balanced relationship with food and sustainable solutions that fit into their real life, to feel vibrant and confident in their bodies and nutrition.
I'm Sophia, a registered dietitian with a functional medicine certification.
I work with adults who are ready to take control of their health, but feel stuck navigating the overwhelm of conflicting nutrition advice, chronic stress, low energy, or persistent health issues. They want a balanced relationship with food and sustainable solutions that fit into their real life, to feel vibrant and confident in their bodies and nutrition.
(615) 488-3767 View (615) 488-3767
Photo of Sara Morrison, Nutritionist/Dietitian, RDN, LD, CLT
Sara Morrison
Nutritionist/Dietitian, RDN, LD, CLT
1 Endorsed
Online Only
Please visit my website to learn more about me and details about my approach. Are you tired of feeling uncomfortable, fatigued, or anxious about food? I’m Sara Morrison, Registered Dietitian, Certified LEAP Therapist, and founder of Rx Food —a virtual nutrition practice bringing relief, clarity, and confidence to those with chronic digestive issues, food sensitivities, and inflammation. I help clients (of all ages) conquer IBS, chronic pain, brain fog, and fatigue, and more with personalized, anti-inflammatory plans grounded in MRT testing. Let’s build a path to a vibrant, symptom-free life.
Please visit my website to learn more about me and details about my approach. Are you tired of feeling uncomfortable, fatigued, or anxious about food? I’m Sara Morrison, Registered Dietitian, Certified LEAP Therapist, and founder of Rx Food —a virtual nutrition practice bringing relief, clarity, and confidence to those with chronic digestive issues, food sensitivities, and inflammation. I help clients (of all ages) conquer IBS, chronic pain, brain fog, and fatigue, and more with personalized, anti-inflammatory plans grounded in MRT testing. Let’s build a path to a vibrant, symptom-free life.
(775) 522-7492 View (775) 522-7492
Photo of Brigitta Jansen, Nutritionist/Dietitian, MS, CNS, CDN, CHC
Brigitta Jansen
Nutritionist/Dietitian, MS, CNS, CDN, CHC
1 Endorsed
Online Only
As a functional medicine nutritionist my focus is to help you lower inflammation, and balance your blood sugar to achieve optimum health and weight.
I am a Certified Nutrition Specialist CNS and Certified Health Coach CHC with a MS in Human Nutrition and 7 years of experience as a nutritionist and health coach. I am passionate about helping clients achieve optimum health naturally. My areas of expertise are weight management, diabetes management and prevention, hormone balancing, anti-inflammatory diets, and autoimmune and digestive disorders. I believe restoring gut health is fundamental to improving all kinds of chronic conditions so this is a major focus of my practice. I have helped many clients who are frustrated and don't know what to eat improve or eliminate digestive
As a functional medicine nutritionist my focus is to help you lower inflammation, and balance your blood sugar to achieve optimum health and weight.
I am a Certified Nutrition Specialist CNS and Certified Health Coach CHC with a MS in Human Nutrition and 7 years of experience as a nutritionist and health coach. I am passionate about helping clients achieve optimum health naturally. My areas of expertise are weight management, diabetes management and prevention, hormone balancing, anti-inflammatory diets, and autoimmune and digestive disorders. I believe restoring gut health is fundamental to improving all kinds of chronic conditions so this is a major focus of my practice. I have helped many clients who are frustrated and don't know what to eat improve or eliminate digestive
(917) 818-0992 View (917) 818-0992
Photo of Brittany Payton, Nutritionist/Dietitian, RDN, LD
Brittany Payton
Nutritionist/Dietitian, RDN, LD
2 Endorsed
Serves Area
Brittany blends functional nutrition, clinical insight, and compassion to create personalized, practical plans.
Brittany helps clients heal chronic conditions like type 2 diabetes, hypertension, and inflammation. She uses personalized nutrition and lifestyle strategies to address hormonal balance and gut health. Her goal is to help clients build a positive relationship with food, moving beyond restrictive diets to mindful, intuitive eating.
Brittany blends functional nutrition, clinical insight, and compassion to create personalized, practical plans.
Brittany helps clients heal chronic conditions like type 2 diabetes, hypertension, and inflammation. She uses personalized nutrition and lifestyle strategies to address hormonal balance and gut health. Her goal is to help clients build a positive relationship with food, moving beyond restrictive diets to mindful, intuitive eating.
(615) 909-4087 View (615) 909-4087
Photo of Tessa O' Toole, Nutritionist/Dietitian, MS, CNS, LDN
Tessa O' Toole
Nutritionist/Dietitian, MS, CNS, LDN
Online Only
You are tired of dieting and want to feel at peace with food and your body. You may be struggling with digestion issues, fatigue, or anxiety and want lasting change that feels supportive, not restrictive. You want to understand your body, feel nourished, and finally have food feel simple again.
You are tired of dieting and want to feel at peace with food and your body. You may be struggling with digestion issues, fatigue, or anxiety and want lasting change that feels supportive, not restrictive. You want to understand your body, feel nourished, and finally have food feel simple again.
(224) 218-5409 View (224) 218-5409
Photo of Anna A Bohnengel - Fertility Nutritionist, Nutritionist/Dietitian, MS, RDN, LD
Fertility Nutritionist
Nutritionist/Dietitian, MS, RDN, LD
Serves Area
You’re ready to grow your family—but nutrition may be the missing piece. Whether you’re navigating PCOS, endometriosis, unexplained infertility, or preparing for IUI/IVF, the right plan can restore hormone balance, improve egg quality, and help you conceive sooner. I’m Anna Bohnengel, NIH-trained Registered Dietitian creator of Fertile In Four. I offer personalized, evidence-based plans with daily support so you can move from struggle to pregnancy with clarity and confidence.
You’re ready to grow your family—but nutrition may be the missing piece. Whether you’re navigating PCOS, endometriosis, unexplained infertility, or preparing for IUI/IVF, the right plan can restore hormone balance, improve egg quality, and help you conceive sooner. I’m Anna Bohnengel, NIH-trained Registered Dietitian creator of Fertile In Four. I offer personalized, evidence-based plans with daily support so you can move from struggle to pregnancy with clarity and confidence.
(503) 483-6601 View (503) 483-6601
Photo of Meg Bowman, Nutritionist/Dietitian, MS, CNS, LDN, CHES
Meg Bowman
Nutritionist/Dietitian, MS, CNS, LDN, CHES
1 Endorsed
Online Only
My specialty is trauma informed, functional nutrition for mental health, digestion, and hormones.
My ideal client has done everything right, followed plans, taken supplements, read the books, but still feels anxious, exhausted, or disconnected from their body. They often struggle with digestion, hormones, or stress related symptoms and want to understand why. They are ready for a compassionate, science based approach that honors both body and mind. Together, we restore a sense of safety first so energy, digestion, and calm can follow naturally.
My specialty is trauma informed, functional nutrition for mental health, digestion, and hormones.
My ideal client has done everything right, followed plans, taken supplements, read the books, but still feels anxious, exhausted, or disconnected from their body. They often struggle with digestion, hormones, or stress related symptoms and want to understand why. They are ready for a compassionate, science based approach that honors both body and mind. Together, we restore a sense of safety first so energy, digestion, and calm can follow naturally.
(847) 278-9449 View (847) 278-9449