Functional Medicine Nutritionist Nutritionists and Dietitians in California

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 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
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 Mehek Hasija - Mehek Hasija, Nutritionist/Dietitian, NTP
Mehek Hasija
Nutritionist/Dietitian, NTP
Online Only
I believe most health issues can be resolved with the right diet and lifestyle changes. I specialize in a root-cause approach, focusing on healing the body from the inside out. Whether you’re dealing with Diabetes, Gut Issues, Hormonal imbalances, Autoimmune conditions, Chronic fatigue, PCOS, Endometriosis or Weight Gain , I’m here to support you on your journey to better health.
I believe most health issues can be resolved with the right diet and lifestyle changes. I specialize in a root-cause approach, focusing on healing the body from the inside out. Whether you’re dealing with Diabetes, Gut Issues, Hormonal imbalances, Autoimmune conditions, Chronic fatigue, PCOS, Endometriosis or Weight Gain , I’m here to support you on your journey to better health.
(408) 549-8140 View (408) 549-8140
Photo of Dr. Patrick Traynor, Nutritionist/Dietitian, PhD, MPH, RD, CPT
Dr. Patrick Traynor
Nutritionist/Dietitian, PhD, MPH, RD, CPT
South Lake Tahoe, CA 96150
Has losing that next five or ten pounds, and keeping it off become insurmountable? Or, has your weight gotten away from you? Do you want to manage, reverse, or prevent chronic illnesses and/or improve blood lab values and other indicators? Would you like a free nutritional body sculpting coach to prepare you for that next event? Do you want to do some or all of this while eating delicious, guilt free, food without abandon?
Has losing that next five or ten pounds, and keeping it off become insurmountable? Or, has your weight gotten away from you? Do you want to manage, reverse, or prevent chronic illnesses and/or improve blood lab values and other indicators? Would you like a free nutritional body sculpting coach to prepare you for that next event? Do you want to do some or all of this while eating delicious, guilt free, food without abandon?
(530) 429-7363 View (530) 429-7363
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 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 Mary Ann Kelly - Dietitian of the Desert, Nutritionist/Dietitian, RD, CIC, ISAK
Dietitian of the Desert
Nutritionist/Dietitian, RD, CIC, ISAK
1 Endorsed
Joshua Tree, CA 92252
Every person is unique and my goal is to support your personal health & performance goals with a customized plan. Sessions can be scheduled in person or remotely. I believe in Testing, Not Guessing! Micro-nutrient Levels, Microbiome Test or our Food & Chemical Sensitivity Testing can be completed when local or when on the move. Onsite services also include Body Composition & Metabolic Testing, workshops & seminars and camp support! NEW! Respiratory Training will help you achieve your personal best at altitude or in the gym!. Personalized Probiotics and Supplement Recommendations to match your body type and goals!
Every person is unique and my goal is to support your personal health & performance goals with a customized plan. Sessions can be scheduled in person or remotely. I believe in Testing, Not Guessing! Micro-nutrient Levels, Microbiome Test or our Food & Chemical Sensitivity Testing can be completed when local or when on the move. Onsite services also include Body Composition & Metabolic Testing, workshops & seminars and camp support! NEW! Respiratory Training will help you achieve your personal best at altitude or in the gym!. Personalized Probiotics and Supplement Recommendations to match your body type and goals!
(760) 878-5181 View (760) 878-5181
Photo of Tommy Comer, Nutritionist/Dietitian, BS, MS
Tommy Comer
Nutritionist/Dietitian, BS, MS
Redondo Beach, CA 90278
Functional medicine nutrition is a nutritional approach that emphasizes the unique biochemistry of each individual and the interplay between genetics, environment, and lifestyle factors in determining health outcomes.
I work with individuals with a wide variety of needs. Whether you are struggling with chronic health conditions including GI distress, IBS, GERD, depression, inflammation, or food intolerances. Or an athlete looking to use nutrition to maximize your performance and recovery. I know that I will be able to help you achieve your best health.
Functional medicine nutrition is a nutritional approach that emphasizes the unique biochemistry of each individual and the interplay between genetics, environment, and lifestyle factors in determining health outcomes.
I work with individuals with a wide variety of needs. Whether you are struggling with chronic health conditions including GI distress, IBS, GERD, depression, inflammation, or food intolerances. Or an athlete looking to use nutrition to maximize your performance and recovery. I know that I will be able to help you achieve your best health.
(424) 799-1235 View (424) 799-1235
Photo of Monica Rogers, Nutritionist/Dietitian, MPH, RDN, LD
Monica Rogers
Nutritionist/Dietitian, MPH, RDN, LD
Studio City, CA 91604
The Seed is a nutrition service for women and couples during preconception, pregnancy and postpartum. High-quality prenatal nutrition is vital for growing a healthy baby and maintaining optimal maternal health. If you are struggling with fertility issues, are already pregnant or are just planning to expand your family, I can address your specific needs with customized care.
The Seed is a nutrition service for women and couples during preconception, pregnancy and postpartum. High-quality prenatal nutrition is vital for growing a healthy baby and maintaining optimal maternal health. If you are struggling with fertility issues, are already pregnant or are just planning to expand your family, I can address your specific needs with customized care.
(424) 390-7340 View (424) 390-7340
Photo of Tami Broderick, Nutritionist/Dietitian, RD, CLT
Tami Broderick
Nutritionist/Dietitian, RD, CLT
1 Endorsed
Irvine, CA 92614
As a compassionate Dietitian with 17 years of experience specializing in functional nutrition, I'm dedicated to helping you discover the root causes of your health challenges.
Genetics: I use cutting-edge DNA testing to personalize nutrition plans and optimize health outcomes with customized dietary strategies tailored to each individual's unique needs. Food Sensitivities: I utilize Leap MRT food sensitivity testing that enables the identification of specific food triggers that may be contributing to health issues and inflammation
As a compassionate Dietitian with 17 years of experience specializing in functional nutrition, I'm dedicated to helping you discover the root causes of your health challenges.
Genetics: I use cutting-edge DNA testing to personalize nutrition plans and optimize health outcomes with customized dietary strategies tailored to each individual's unique needs. Food Sensitivities: I utilize Leap MRT food sensitivity testing that enables the identification of specific food triggers that may be contributing to health issues and inflammation
(949) 281-7497 View (949) 281-7497
Photo of Kristie Tovar - Kristie Tovar Nutrition & Associates, Nutritionist/Dietitian, MS, RDN, CEDS
Kristie Tovar Nutrition & Associates
Nutritionist/Dietitian, MS, RDN, CEDS
1 Endorsed
Glendale, CA 91203
We really get it—it's exhausting to constantly worry about food, your health, or your body. Maybe you're in eating disorder recovery, navigating menopause or PCOS, or managing a chronic illness. You might feel confused by conflicting nutrition advice or overwhelmed by restrictive diets that just don’t work. At Kristie Tovar Nutrition, our team of dietitians provide compassionate, weight-neutral care for eating disorders, women's health, diabetes, GI disorders and heart conditions. We help you cut through the confusion with clear guidance tailored to your specific needs.
We really get it—it's exhausting to constantly worry about food, your health, or your body. Maybe you're in eating disorder recovery, navigating menopause or PCOS, or managing a chronic illness. You might feel confused by conflicting nutrition advice or overwhelmed by restrictive diets that just don’t work. At Kristie Tovar Nutrition, our team of dietitians provide compassionate, weight-neutral care for eating disorders, women's health, diabetes, GI disorders and heart conditions. We help you cut through the confusion with clear guidance tailored to your specific needs.
(747) 999-4012 View (747) 999-4012
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 Krista Feagans - Krista Feagans Nutrition, Nutritionist/Dietitian, RDN
Krista Feagans Nutrition
Nutritionist/Dietitian, RDN
Online Only
Unlike other providers who use restrictive diets to treat your symptoms, I use a whole body approach (reinforced by functional nutrition labs) to address the root of the problem, and make specific nutrition and lifestyle suggestions based on your results.
I've worked in both the hospital and outpatient environments for over 12 years. I have extensive experience monitoring lab work, working with physicians to adjust medications to best accommodate diet and lifestyle, and adapting a personalized approach to meet your goals.
Unlike other providers who use restrictive diets to treat your symptoms, I use a whole body approach (reinforced by functional nutrition labs) to address the root of the problem, and make specific nutrition and lifestyle suggestions based on your results.
I've worked in both the hospital and outpatient environments for over 12 years. I have extensive experience monitoring lab work, working with physicians to adjust medications to best accommodate diet and lifestyle, and adapting a personalized approach to meet your goals.
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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.
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Photo of Donna M Wolf, Nutritionist/Dietitian, RDN, CLT, IFMNT
Donna M Wolf
Nutritionist/Dietitian, RDN, CLT, IFMNT
2 Endorsed
Oceanside, CA 92054
Work in functional nutrition- getting to the root cause of health issues, using body-wide assessment, variety of functional testing, then correct with sound nutrition.
Are you sick & tired of not feeling well, or energized? Have you tried everything, yet still suffer or are worse. Have you not tried a dietitian because you thought: 1) I already eat a healthy diet 2) my problems don't have anything to do with what I eat 3) embarrassed to disclose what I eat, 4) don't know how a dietitian could help me. Surprise! I assess your individual case and formulate a realistic, affordable action plan. I specialize in digestive issues, food sensitivities & allergies, and weight management. I can help you achieve health, vigor, energy, reduce medications and pain-freedom.
Work in functional nutrition- getting to the root cause of health issues, using body-wide assessment, variety of functional testing, then correct with sound nutrition.
Are you sick & tired of not feeling well, or energized? Have you tried everything, yet still suffer or are worse. Have you not tried a dietitian because you thought: 1) I already eat a healthy diet 2) my problems don't have anything to do with what I eat 3) embarrassed to disclose what I eat, 4) don't know how a dietitian could help me. Surprise! I assess your individual case and formulate a realistic, affordable action plan. I specialize in digestive issues, food sensitivities & allergies, and weight management. I can help you achieve health, vigor, energy, reduce medications and pain-freedom.
(858) 224-0731 View (858) 224-0731
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 Shaina Painter, Nutritionist/Dietitian, CNS, MS, LDN
Shaina Painter
Nutritionist/Dietitian, CNS, MS, LDN
Online Only
As a trauma-informed, non-diet nutritionist, I specialize in helping people who feel stuck in dieting cycles, body dissatisfaction, or chronic health concerns such as PCOS, thyroid imbalance, and digestive issues. If you’re ready to stop the frustration of restrictive eating and start building a nourishing, sustainable relationship with food and your body, you’re in the right place.
As a trauma-informed, non-diet nutritionist, I specialize in helping people who feel stuck in dieting cycles, body dissatisfaction, or chronic health concerns such as PCOS, thyroid imbalance, and digestive issues. If you’re ready to stop the frustration of restrictive eating and start building a nourishing, sustainable relationship with food and your body, you’re in the right place.
(530) 456-4527 View (530) 456-4527
Photo of Sheri Lee Weitz, Nutritionist/Dietitian, RDN, CDCES
Sheri Lee Weitz
Nutritionist/Dietitian, RDN, CDCES
Los Angeles, CA 90045
Are you confused about what to eat? Are you looking to keep muscle while on a GLP-1? . Are you diabetic or trying to prevent diabetes or other chronic diseases? Do you suffer with food allergies or sensitivities? Do you display disordered eating, or eating disorder behaviors? Let's form a "team" to help improve your labs, lose or gain weight, and make lasting changes without feeling deprived. I currently work in doctors' offices and hospitals, keeping up-to-date on the latest research. I also accept most Insurance, and Medicare. If you need to pay out of pocket, I will work with your budget. It's time to "Move to Wellness!"
Are you confused about what to eat? Are you looking to keep muscle while on a GLP-1? . Are you diabetic or trying to prevent diabetes or other chronic diseases? Do you suffer with food allergies or sensitivities? Do you display disordered eating, or eating disorder behaviors? Let's form a "team" to help improve your labs, lose or gain weight, and make lasting changes without feeling deprived. I currently work in doctors' offices and hospitals, keeping up-to-date on the latest research. I also accept most Insurance, and Medicare. If you need to pay out of pocket, I will work with your budget. It's time to "Move to Wellness!"
(424) 320-6194 View (424) 320-6194
Photo of Terri Oberto, Nutritionist/Dietitian, CNC, CPT, PHT, BS
Terri Oberto
Nutritionist/Dietitian, CNC, CPT, PHT, BS
Santa Cruz, CA 95060
Our office provides extensive evaluation of questionnaires, diet analysis, urine and blood analysis from state of the art labs, in-office and home testing, Kinesiology and Sclerology. This evaluation generates a detailed protocol which is discussed in a lengthy consultation with you. We also offer several modalities which may help with issues you would like to address. These include Biofeedback, Rife, Galvanic Spa and infra red laser technologies, as well as aromatherapy, infra red sauna, cellular detox foot bath, and alkalizing therapies.
Our office provides extensive evaluation of questionnaires, diet analysis, urine and blood analysis from state of the art labs, in-office and home testing, Kinesiology and Sclerology. This evaluation generates a detailed protocol which is discussed in a lengthy consultation with you. We also offer several modalities which may help with issues you would like to address. These include Biofeedback, Rife, Galvanic Spa and infra red laser technologies, as well as aromatherapy, infra red sauna, cellular detox foot bath, and alkalizing therapies.
(831) 400-3405 View (831) 400-3405