Functional Medicine Nutritionist Nutritionists and Dietitians in California

Photo of Haley Mannix, Nutritionist/Dietitian, CNC
Haley Mannix
Nutritionist/Dietitian, CNC
San Francisco, CA 94115
My practice works with motivated and curious individuals looking for integrative and functional nutrition to investigate the root drivers of digestive issues, microbiome imbalances, acne, and hormone, metabolic and immune imbalances.
Through a combination of evidence-based functional testing, blood chemistry analysis, glucose monitoring, tailored dietary modifications, targeted supplementation protocols, and a highly personalized and nuanced approach, I aim to identify imbalances and devise a plan that is both results driven and attainable.
My practice works with motivated and curious individuals looking for integrative and functional nutrition to investigate the root drivers of digestive issues, microbiome imbalances, acne, and hormone, metabolic and immune imbalances.
Through a combination of evidence-based functional testing, blood chemistry analysis, glucose monitoring, tailored dietary modifications, targeted supplementation protocols, and a highly personalized and nuanced approach, I aim to identify imbalances and devise a plan that is both results driven and attainable.
(415) 594-5248 View (415) 594-5248
Photo of Aaron Slotkin, Nutritionist/Dietitian, MS, CCN, PharmD
Aaron Slotkin
Nutritionist/Dietitian, MS, CCN, PharmD
Los Angeles, CA 90048
As an option for my clients, I provide functional blood chemistry analysis.
As my client, I want to find out what is really going on with your metabolism and provide you with answers aimed at improving weight and health in a convenient way using the latest evidence in nutritional science. I'm a board Certified Clinical Nutritionist and Pharmacist with affordable pricing and friendly service. I serve the Los Angeles county area.
As an option for my clients, I provide functional blood chemistry analysis.
As my client, I want to find out what is really going on with your metabolism and provide you with answers aimed at improving weight and health in a convenient way using the latest evidence in nutritional science. I'm a board Certified Clinical Nutritionist and Pharmacist with affordable pricing and friendly service. I serve the Los Angeles county area.
(909) 962-1209 View (909) 962-1209
Photo of Nadia Pugh, Nutritionist/Dietitian, MS, RDN, LDN
Nadia Pugh
Nutritionist/Dietitian, MS, RDN, LDN
4 Endorsed
San Diego, CA 92116
Nadia is passionate about women’s health, PCOS, fertility, thyroid and autoimmune disorders, renal health, and diabetes management. Her holistic approach focuses on individualized nutrition plans that cater to your unique needs and goals. She emphasizes that there’s no one-size-fits-all diet and aims to empower you with healthy eating habits that resonate with your preferences. Whether you’re addressing imbalances, seeking better habits, or enhancing your relationship with food, Nadia is committed to providing personalized support and practical advice for lasting well-being.
Nadia is passionate about women’s health, PCOS, fertility, thyroid and autoimmune disorders, renal health, and diabetes management. Her holistic approach focuses on individualized nutrition plans that cater to your unique needs and goals. She emphasizes that there’s no one-size-fits-all diet and aims to empower you with healthy eating habits that resonate with your preferences. Whether you’re addressing imbalances, seeking better habits, or enhancing your relationship with food, Nadia is committed to providing personalized support and practical advice for lasting well-being.
(904) 567-0490 View (904) 567-0490
Photo of Annie Rubin, Nutritionist/Dietitian, MS, RDN, IFNCP, CLT
Annie Rubin
Nutritionist/Dietitian, MS, RDN, IFNCP, CLT
Online Only
Are you struggling with symptoms caused by an underlying inflammatory and autoimmune condition? Do you experience pain, fatigue or digestive challenges? Are you finding that your quality of life just isn’t what it used to be? Inflammatory and autoimmune conditions can be extremely challenging, and unfortunately adjusting your diet is usually not part of the “typical” treatment plan.
Are you struggling with symptoms caused by an underlying inflammatory and autoimmune condition? Do you experience pain, fatigue or digestive challenges? Are you finding that your quality of life just isn’t what it used to be? Inflammatory and autoimmune conditions can be extremely challenging, and unfortunately adjusting your diet is usually not part of the “typical” treatment plan.
View
Photo of Lauren Bartell Weiss - Lauren Weiss Ph.D.- La Jolla Nutritional Health, Nutritionist/Dietitian, PhD, MEd, CNS-S, CKNS, MHP
Lauren Weiss Ph.D.- La Jolla Nutritional Health
Nutritionist/Dietitian, PhD, MEd, CNS-S, CKNS, MHP
1 Endorsed
Online Only
I offer online Ketogenic Diet consultations and coaching for weight loss, metabolic health, menopause, GLP-1 transition, mental health, cancer, and more. My personalized programs are comprised of education, behavior modification, and daily on-going support and encouragement. The Ketogenic Lifestyle is the best and most effective approach for optimizing metabolic health which is critical for disease prevention, overall health, and weight loss.
I offer online Ketogenic Diet consultations and coaching for weight loss, metabolic health, menopause, GLP-1 transition, mental health, cancer, and more. My personalized programs are comprised of education, behavior modification, and daily on-going support and encouragement. The Ketogenic Lifestyle is the best and most effective approach for optimizing metabolic health which is critical for disease prevention, overall health, and weight loss.
(858) 260-2421 View (858) 260-2421
Photo of Brooke Mader Ganev - South Bay Nutrition, Nutritionist/Dietitian, MS, CNS, LDN
South Bay Nutrition
Nutritionist/Dietitian, MS, CNS, LDN
1 Endorsed
Redondo Beach, CA 90277
I am a board-certified Clinical & Integrative Nutritionist specializing in the functional medicine approach to nutrition.
If you’re feeling off but haven’t found answers, I help uncover the root causes of hormone imbalances, digestive issues, fatigue, and more. Using functional lab testing and personalized nutrition plans, I guide you with empathy and clarity toward lasting, whole-body healing.
I am a board-certified Clinical & Integrative Nutritionist specializing in the functional medicine approach to nutrition.
If you’re feeling off but haven’t found answers, I help uncover the root causes of hormone imbalances, digestive issues, fatigue, and more. Using functional lab testing and personalized nutrition plans, I guide you with empathy and clarity toward lasting, whole-body healing.
(424) 361-7755 View (424) 361-7755
Photo of Carly Marenna - June Nutrition Therapy, Nutritionist/Dietitian, MHA, RD-N
June Nutrition Therapy
Nutritionist/Dietitian, MHA, RD-N
Online Only
My ideal clients are women, teens, and young adults looking for a more peaceful, supported relationship with food, body, and health. Many come to June Nutrition Therapy seeking guidance through fertility, pregnancy, postpartum recovery, breastfeeding, blood sugar concerns, eating disorder recovery, body image struggles, or chronic stress around food and wellness. Often, clients feel overwhelmed by conflicting nutrition advice, disconnected from their body, exhausted from dieting or anxiety around food, or simply unsure how to nourish themselves well during an important season of life.
My ideal clients are women, teens, and young adults looking for a more peaceful, supported relationship with food, body, and health. Many come to June Nutrition Therapy seeking guidance through fertility, pregnancy, postpartum recovery, breastfeeding, blood sugar concerns, eating disorder recovery, body image struggles, or chronic stress around food and wellness. Often, clients feel overwhelmed by conflicting nutrition advice, disconnected from their body, exhausted from dieting or anxiety around food, or simply unsure how to nourish themselves well during an important season of life.
(562) 262-8714 View (562) 262-8714
Photo of Sarah Reilly, Nutritionist/Dietitian, CNC, CNBP, AFMHCp
Sarah Reilly
Nutritionist/Dietitian, CNC, CNBP, AFMHCp
Walnut Creek, CA 94595
I provide a customized, cutting edge approach for each client, by combining principles of Holistic Nutrition and Functional Medicine.
I am a Functional Medicine Nutritionist & Burnout Recovery Specialist. I combine Holistic Clinical Nutrition & Functional Medicine principles to provide a comprehensive and personalized process to achieve your goals. In clinical practice for 16 years, I continue studies in these powerful disciplines to stay on the forefront of cutting edge applications.
I provide a customized, cutting edge approach for each client, by combining principles of Holistic Nutrition and Functional Medicine.
I am a Functional Medicine Nutritionist & Burnout Recovery Specialist. I combine Holistic Clinical Nutrition & Functional Medicine principles to provide a comprehensive and personalized process to achieve your goals. In clinical practice for 16 years, I continue studies in these powerful disciplines to stay on the forefront of cutting edge applications.
(925) 886-3630 View (925) 886-3630
Photo of Seema Shah, Nutritionist/Dietitian, MPH, MS, RD, IFNCP, WIMI-CP
Seema Shah
Nutritionist/Dietitian, MPH, MS, RD, IFNCP, WIMI-CP
Online Only
I utilize integrative and functional nutrition, lifestyle interventions, and health coaching to help my clients achieve their health goals.
I specialize in helping people who have type 2 diabetes or prediabetes, high cholesterol, high blood pressure, hypothyroidism, chronic stress and/or insomnia, anxiety, fatigue, perimenopause, PMS and/or painful periods, chronic stress. and high inflammation. I also help people with meeting their weight goals.
I utilize integrative and functional nutrition, lifestyle interventions, and health coaching to help my clients achieve their health goals.
I specialize in helping people who have type 2 diabetes or prediabetes, high cholesterol, high blood pressure, hypothyroidism, chronic stress and/or insomnia, anxiety, fatigue, perimenopause, PMS and/or painful periods, chronic stress. and high inflammation. I also help people with meeting their weight goals.
(310) 494-7016 View (310) 494-7016
Photo of Megan Murphy - Shapely, Nutritionist/Dietitian, RDN
Shapely
Nutritionist/Dietitian, RDN
Online Only
Many people want to feel healthier, more energized, and confident in their bodies—but feel stuck after trying countless diets or conflicting advice. They may be struggling with weight, hormonal changes, or medical conditions like diabetes or high cholesterol. They’re looking for sustainable guidance, accountability, and a caring expert who helps them make real progress without restriction or judgment.
Many people want to feel healthier, more energized, and confident in their bodies—but feel stuck after trying countless diets or conflicting advice. They may be struggling with weight, hormonal changes, or medical conditions like diabetes or high cholesterol. They’re looking for sustainable guidance, accountability, and a caring expert who helps them make real progress without restriction or judgment.
(323) 622-7814 View (323) 622-7814
Photo of Amanda Wikan, Nutritionist/Dietitian, MS, RDN
Amanda Wikan
Nutritionist/Dietitian, MS, RDN
Petaluma, CA 94954
As a Registered Dietitian with a Master's in Nutrition & Functional Medicine, I look beyond food choices to assess digestion, nutrient status, and the microbiome.
My clients typically come to me with some combination of bloating, cramping, urgency, constipation, or diarrhea that hasn't resolved despite consistent effort, and confusion or fear around food after years of conflicting advice. Often, they've seen gastroenterologists and multiple providers without getting a clear answer.
As a Registered Dietitian with a Master's in Nutrition & Functional Medicine, I look beyond food choices to assess digestion, nutrient status, and the microbiome.
My clients typically come to me with some combination of bloating, cramping, urgency, constipation, or diarrhea that hasn't resolved despite consistent effort, and confusion or fear around food after years of conflicting advice. Often, they've seen gastroenterologists and multiple providers without getting a clear answer.
(707) 868-5718 View (707) 868-5718
Photo of Naia Riley, Nutritionist/Dietitian, RDN, BS
Naia Riley
Nutritionist/Dietitian, RDN, BS
1 Endorsed
Oakland, CA 94611
Accepting New Clients! Tired of feeling like food is the enemy or your body is a problem to fix? If you're exhausted from second-guessing every bite, overwhelmed by food decisions, or disconnected from your body’s cues, you're not alone — and you don’t have to heal alone either. Many of my clients come to me feeling like they’ve tried everything and still feel stuck. I’m here to offer a new way forward: one rooted in safety, compassion, creativity, and who You are as a whole person.
Accepting New Clients! Tired of feeling like food is the enemy or your body is a problem to fix? If you're exhausted from second-guessing every bite, overwhelmed by food decisions, or disconnected from your body’s cues, you're not alone — and you don’t have to heal alone either. Many of my clients come to me feeling like they’ve tried everything and still feel stuck. I’m here to offer a new way forward: one rooted in safety, compassion, creativity, and who You are as a whole person.
(510) 201-5672 View (510) 201-5672
Photo of Paula Sturm, Nutritionist/Dietitian, RDN, FMN, CGN, CFSP, MNLP
Paula Sturm
Nutritionist/Dietitian, RDN, FMN, CGN, CFSP, MNLP
San Diego, CA 92130
Look no further, I can help you address these issues and more with my experience as a Functional Medicine Dietitian.
I can help you navigate undesirable symptoms with targeted testing and support, mindset and behavior changes, accountability, and lifestyle changes. I help you put the pieces all together so you can feel like yourself again. Gastrointestinal, Hormone, Genomic, and Micronutrient Testing offered.
Look no further, I can help you address these issues and more with my experience as a Functional Medicine Dietitian.
I can help you navigate undesirable symptoms with targeted testing and support, mindset and behavior changes, accountability, and lifestyle changes. I help you put the pieces all together so you can feel like yourself again. Gastrointestinal, Hormone, Genomic, and Micronutrient Testing offered.
(858) 496-7928 View (858) 496-7928
Photo of Silvina Cox, Nutritionist/Dietitian, MPH, RD
Silvina Cox
Nutritionist/Dietitian, MPH, RD
Thousand Oaks, CA 91360
Silvina Cox, MPH, RD supports and guides clients towards a healthy and balanced relationship with food and their bodies. We address and resolve weight and health concerns together. My approach is highly personalized, based on sound—no hype— nutrition/health sciences to meet your individual or family's needs and goals. My work is grounded in non-diet, Intuitive and mindful eating principles, and is weight inclusive. Areas of expertise include family feeding; adolescent and adult weight concerns; disordered eating, ED's; Type2 & pre diabetes; PCOS; gastrointestinal health; integrative nutrition and wellness.
Silvina Cox, MPH, RD supports and guides clients towards a healthy and balanced relationship with food and their bodies. We address and resolve weight and health concerns together. My approach is highly personalized, based on sound—no hype— nutrition/health sciences to meet your individual or family's needs and goals. My work is grounded in non-diet, Intuitive and mindful eating principles, and is weight inclusive. Areas of expertise include family feeding; adolescent and adult weight concerns; disordered eating, ED's; Type2 & pre diabetes; PCOS; gastrointestinal health; integrative nutrition and wellness.
(805) 813-8497 View (805) 813-8497
Photo of Sarah Marie Jackson, Nutritionist/Dietitian, MS, RDN, CLT
Sarah Marie Jackson
Nutritionist/Dietitian, MS, RDN, CLT
Irvine, CA 92620
Wellness is multifaceted- I'm certified in functional nutrition to help you get to the root cause of your symptoms and provide comprehensive treatment solutions.
I help clients achieve their nutrition related health goals by coupling evidenced based practices with function nutrition therapies. I find the root cause of my clients health concerns then develop a personalized nutrition plan that is easy to follow so goals can be achieved.
Wellness is multifaceted- I'm certified in functional nutrition to help you get to the root cause of your symptoms and provide comprehensive treatment solutions.
I help clients achieve their nutrition related health goals by coupling evidenced based practices with function nutrition therapies. I find the root cause of my clients health concerns then develop a personalized nutrition plan that is easy to follow so goals can be achieved.
(747) 271-2024 View (747) 271-2024
Photo of Maricel Klichuk Rocha, Nutritionist/Dietitian, MS, CPQC
Maricel Klichuk Rocha
Nutritionist/Dietitian, MS, CPQC
Manhattan Beach, CA 90266
We take a functional, integrative approach that blends cutting-edge diagnostics with lifestyle and mindset tools.
My ideal client feels stuck — tired, inflamed, frustrated by weight gain, hormone imbalances, or recurring symptoms. They've tried different diets and supplements without lasting success. They want clarity, energy, and to slow aging smartly with confidence. Most of all, they want a personalized, science-based path to feel like themselves again.
We take a functional, integrative approach that blends cutting-edge diagnostics with lifestyle and mindset tools.
My ideal client feels stuck — tired, inflamed, frustrated by weight gain, hormone imbalances, or recurring symptoms. They've tried different diets and supplements without lasting success. They want clarity, energy, and to slow aging smartly with confidence. Most of all, they want a personalized, science-based path to feel like themselves again.
(424) 544-3792 View (424) 544-3792
Photo of Cassie Berger, Nutritionist/Dietitian, RDN, MS
Cassie Berger
Nutritionist/Dietitian, RDN, MS
Studio City, CA 91604
Cassie is an intuitive eating Registered Dietitian Nutritionist and former dieter. Growing up she succumbed to the allure of fad diets only to discover that they are not sustainable, practical or healthy! Her goal is to help clients rebuild a healthy relationship with food by eliminating the ideology of "good" and "bad" foods, and helping them identify the distinction between health and weight loss. Cassie takes an integrative and functional approach to nutrition, treating it as just one piece of the much larger puzzle that is optimum health.
Cassie is an intuitive eating Registered Dietitian Nutritionist and former dieter. Growing up she succumbed to the allure of fad diets only to discover that they are not sustainable, practical or healthy! Her goal is to help clients rebuild a healthy relationship with food by eliminating the ideology of "good" and "bad" foods, and helping them identify the distinction between health and weight loss. Cassie takes an integrative and functional approach to nutrition, treating it as just one piece of the much larger puzzle that is optimum health.
(424) 625-7838 View (424) 625-7838
Photo of On Ki Chan, Nutritionist/Dietitian, MS, RDN
On Ki Chan
Nutritionist/Dietitian, MS, RDN
Online Only
I can review functional test results or recommend one.
Holistic approach. Food First. Science Based. Using a holistic approach, I assess your diet, symptoms, history, tests to understand what your best next steps would be. We'll work on diet & lifestyle, supplements to fill in gaps, and discuss testing if that is something you want to explore. Imagine what it would be like to be free of your symptoms. Have more energy, mental clarity, normal bowel movements and feel good in your own body. Everyone is different. I use food as nourishment, cell signaling, and healing to get you back to being healthy. I don't have one set protocol for everyone. I offer personalized nutrition guidance.
I can review functional test results or recommend one.
Holistic approach. Food First. Science Based. Using a holistic approach, I assess your diet, symptoms, history, tests to understand what your best next steps would be. We'll work on diet & lifestyle, supplements to fill in gaps, and discuss testing if that is something you want to explore. Imagine what it would be like to be free of your symptoms. Have more energy, mental clarity, normal bowel movements and feel good in your own body. Everyone is different. I use food as nourishment, cell signaling, and healing to get you back to being healthy. I don't have one set protocol for everyone. I offer personalized nutrition guidance.
(818) 918-9637 View (818) 918-9637
Photo of Isa Kujawski - Mea Nutrition, Nutritionist/Dietitian, RDN, MPH
Mea Nutrition
Nutritionist/Dietitian, RDN, MPH
Los Angeles, CA 90065
Functional nutrition for gut health, mood, energy, and longevity.
Self awareness is the root of my practice. YOU are the master hero of your own body. I encourage clients to mindfully understand their unique hunger cues, and tap into the mind-body connection. I then help you systematically incorporate nutrition in a way that lowers inflammation, resets your gut health, while nourishing you without deprivation.
Functional nutrition for gut health, mood, energy, and longevity.
Self awareness is the root of my practice. YOU are the master hero of your own body. I encourage clients to mindfully understand their unique hunger cues, and tap into the mind-body connection. I then help you systematically incorporate nutrition in a way that lowers inflammation, resets your gut health, while nourishing you without deprivation.
(571) 901-1110 View (571) 901-1110
Photo of Dr. Lillie Luu Nguyen, Nutritionist/Dietitian, DCN, CNS, LDN
Dr. Lillie Luu Nguyen
Nutritionist/Dietitian, DCN, CNS, LDN
1 Endorsed
San Francisco, CA 94115
I believe in an integrative approach which combines conventional therapies (e.g. drugs or surgery) with complementary therapies (such as nutrition and functional lab testing).
Navigating the path to better nutrition and well-being can be challenging, but you don't have to go it alone. Using doctorate-level education rooted in evidence-based science, I'm here to support you with a personalized nutrition plan that not only tastes great, but also nourishes your body. We'll take a holistic approach to your health, considering all aspects of your life. If you're curious about lab tests, supplements, or assessments, we can explore those options together.
I believe in an integrative approach which combines conventional therapies (e.g. drugs or surgery) with complementary therapies (such as nutrition and functional lab testing).
Navigating the path to better nutrition and well-being can be challenging, but you don't have to go it alone. Using doctorate-level education rooted in evidence-based science, I'm here to support you with a personalized nutrition plan that not only tastes great, but also nourishes your body. We'll take a holistic approach to your health, considering all aspects of your life. If you're curious about lab tests, supplements, or assessments, we can explore those options together.
(415) 322-5629 View (415) 322-5629