Most Recommended Functional Nutrition Experts

I'm a functional nutritionist (MS, FNTP, CGP) specializing in gut health, food sensitivities, and autoimmune conditions, integrating clinical nutrition science with a biblical worldview. I help people address root causes and restore health through practical nutrition and lifestyle strategies rather than symptom management alone. I’m a regular contributor to The Epoch Times, where my essential health guides on conditions such as diverticulitis, Hashimoto’s, celiac disease, peripheral neuropathy, Crohn’s disease, rosacea, restless legs syndrome, and mast cell activation syndrome (MCAS) have been shared thousands of times by readers. I'm also the author of the international bestselling book God's Prescription: A Faith-Based Plan to Shift Your Mindset and Reclaim Your Natural Health. I work extensively with clients struggling with multiple food sensitivities, Hashimoto’s thyroiditis, celiac disease, IBS, IBD, SIBO, diverticulitis, and other inflammatory and autoimmune conditions. My focus includes intestinal permeability (“leaky gut”), the gut microbiome, blood‑sugar balance, and gluten‑free and elimination diets that are realistic for everyday life. I make complex health information understandable and provide clear, actionable natural solutions. I'm available for expert commentary on digestive health, inflammation, autoimmunity, anti-inflammatory diet and lifestyle, intestinal permeability (leaky gut), the gut microbiome, gluten-free and dairy-free diet, elimination diets, faith and wellness, and practical, evidence‑informed nutrition strategies for real people and families.

​Lisa Ackerman is a board-certified functional medicine nutritionist and the founder of Well Fed Wellness, where she guides clients towards better health with science-backed, judgment-free coaching. She holds an M.S. in Human Nutrition from the University of Bridgeport and is completing a Doctor of Clinical Nutrition at Maryland University of Integrative Health. She specializes in gut health, mental health, and metabolic health and loves that a job exists where she can talk about food and nutrition all day long.

Dr. Craig Mortensen is an IFM-Certified integrative and functional medicine physician and founder of Premier IFM in Placentia, California, with over 20 years of clinical experience. He graduated as class valedictorian from Southern California University of Health Sciences with a 3.98 GPA, majored in pre-med and biochemistry, and received academic awards from Chapman University and the American Chemical Society for his work in organic chemistry. He has trained extensively through the Institute of Functional Medicine (IFM), Functional Medicine University (FMU), the Kharrazian Institute, and the American Academy of Anti-Aging Medicine (A4M). Dr. Mortensen specializes in complex, hard-to-diagnose chronic conditions including autoimmune disease, gut dysfunction, hormone imbalances, chronic fatigue, CIRS, thyroid disorders, and metabolic issues — particularly cases where conventional medicine has failed to find answers. His approach is rooted in identifying the root cause of disease rather than managing symptoms, using advanced functional lab testing and individualized treatment protocols. His path into functional medicine began with his own health crisis as a teenager, when severe recurring abdominal pain left him dismissed by conventional specialists — until a natural medicine practitioner resolved it completely. That experience drives his practice philosophy to this day. Premier IFM has served over 5,000 patients worldwide with a 4.8-star rating.

Hi, I'm Dr. Jeffrey Mark, M.D., a gastroenterologist and functional medicine expert with over 30 years helping people just like you get back to feeling their best. I've dedicated my life to fixing gut health issues, balancing hormones, and tackling heart and energy problems from the root cause—not just masking symptoms with endless meds. My own story started young: At age 10, a bad infection from travel nearly took my life due to a wrong antibiotic, sparking my passion to help others avoid that pain. Later, in my 40s, I battled fatigue, weight gain, high blood pressure, and brain fog from heavy metals and mold toxicity. Using functional and regenerative medicine, I healed myself and now share those tools with you. I earned my B.S. in Neurophysiology from Northwestern University, my M.D. from the University of Illinois College of Medicine, did my internal medicine residency at Northwestern, and specialized in gastroenterology at Chicago Medical School. I'm also certified in medical acupuncture from UCLA and 5X board-certified in functional medicine, anti-aging and regenerative medicine, gastroenterology, obesity medicine, and internal medicine. This lets me blend the best of traditional care with cutting-edge therapies like peptides, PRP, exosomes, and personalized plans. At The Real Gut Doctor, my focus is you: We create custom diets, supplements, and lifestyle tweaks to restore your vitality, mental sharpness, and joy. Whether it's beating IBS, colitis, or low energy, I've guided countless patients to ditch meds, heal after surgery, and live fuller lives. No extreme diets or guesswork—just real results. If you're tired of feeling off and ready for change, let's chat. Visit therealgutdoctor.com or book a discovery call—I'm here to empower you every step of the way!

Dr. Basaria is a transformational expert who takes an integrative approach to health and wellness, with a comprehensive focus on a person’s physical, mental, emotional and spiritual needs. Her approach includes using physical activity and food as medicine, working on developing healthy relationships and finding career satisfaction for mental and emotional balance, and using mindfulness, meditation, breathing techniques and yoga- to name a few- as ways to manage stress. To learn more about Dr. Basaria or True Living, visit www.truelivingforlife.com

Dr. Sarah Khan, MBA, PhD is an Integrative & Functional Nutritionist specializing in autoimmune disease, gut health, hormone imbalances, and chronic inflammation. Using a systems biology approach, she helps clients uncover the root causes of symptoms and create sustainable improvements in energy, digestion, hormone balance, and overall health through personalized nutrition and lifestyle interventions.

As a NASM Certified Nutrition Coach (CNC) at Same Day Supplements, I specialize in providing science-backed, personalized nutrition guidance to help individuals achieve their health and fitness goals. With expertise in dietary planning, supplement strategies, and performance nutrition, I work to empower clients with practical tools for lasting results. My approach blends evidence-based knowledge with real-world application, ensuring sustainable habits that support both everyday wellness and peak athletic performance.

Dr. Shiv Goel, MD is a board-certified physician and the founder of Prime Vitality Care, a physician-led functional medicine and wellness clinic based in San Antonio, Texas, with telehealth services available to patients in all 50 states. Dr. Goel trained in internal medicine and functional and integrative medicine, and has spent his career building a practice model that treats the root causes of poor health rather than managing symptoms in isolation. His clinical philosophy is grounded in the understanding that hormones, metabolism, inflammation, gut health, and mental well-being are deeply interconnected systems — and that lasting health improvements require addressing all of them together. Prime Vitality Care specializes in physician-supervised GLP-1 medical weight loss programs using semaglutide and tirzepatide, bioidentical hormone replacement therapy (BHRT) for women, testosterone replacement therapy (TRT) for men, peptide therapy including Sermorelin, BPC-157, and PT-141, and comprehensive functional medicine consultations for patients with chronic fatigue, gut dysfunction, autoimmune concerns, and metabolic disease. Dr. Goel is a sought-after expert on the clinical application of GLP-1 therapies, the role of hormonal imbalance in weight resistance, and the future of physician-led telehealth medicine. He speaks regularly to the gap between what conventional medicine offers patients with metabolic dysfunction and what a root-cause, functional approach can deliver when the right diagnostics and time are applied. Through Prime Vitality Care's HIPAA-compliant telehealth platform, Dr. Goel brings the same standard of clinical depth and personalization to patients nationwide that San Antonio patients have relied on in person — with lab coordination through local Quest Diagnostics or CPL sites and all prescriptions compounded and shipped directly to patients.

As I discovered the power of nutrition and functional medicine to address my own personal health issues, I became inspired to learn the biochemistry behind it all and share what I've learned with those who suffer from chronic health conditions. My specialties and professional interests include: IBS/IBD, autoimmune disease, hormone nutrition, and food sensitivities and intolerances. I take a functional/integrative approach to nutrition which includes advanced GI and food sensitivity testing methods, nutrition counseling, custom meal plans, and supplement therapy as needed.

As a Functional Medicine practitioner, I specialize in helping high-achievers reclaim their vitality and performance. My approach goes beyond surface-level symptoms, digging deep into the root causes of health imbalances.

Dr. Claudia Arregoytia, MD, ND, FMCP-M, ABHRT, is the founder and CEO of Brilliant Health Institute, a Seattle-based telemedicine practice specializing in functional medicine, cardiometabolic health, and longevity wellness. Dual-licensed in conventional (MD) and naturopathic (ND) medicine, and certified in Hormone Replacement Therapy (ABHRT), Dr. Arregoytia brings a rare blend of clinical rigor and root-cause investigation to her practice. She founded Brilliant Health Institute years before the recent wave of national telehealth startups pivoted into hormone therapy following GLP-1 regulatory changes — giving her deep, established expertise in bioidentical hormone replacement therapy (BHRT), GLP-1 weight loss protocols, and biohacking for longevity. Her clinical approach integrates advanced biomarkers (ApoB, Lp(a)), continuous glucose monitoring, and wearable data (Oura Ring, HRV) to build individualized treatment plans. Dr. Arregoytia is available to speak on hormone health, metabolic optimization, longevity medicine, and the future of personalized, data-driven telehealth.

Simona Stohrer is a certified Holistic Nutrition and Longevity Expert, founder of Body2Balance, specializing in women 40+. After overcoming Hashimoto’s disease through functional nutrition and lifestyle medicine, she turned her own healing journey into her mission. With a background in corporate leadership and advanced training in functional medicine and epigenetics (including Dr. Kara Fitzgerald’s Younger You program), she helps women balance hormones, slow biological aging, and regain vitality. Simona works between Munich and Tenerife, integrating science-based nutrition, lifestyle optimization, and Korean dermocosmetics. Featured speaker and consultant in women’s health, anti-aging, and metabolic wellness.

Amanda Callenberg is a London-based BANT Registered Nutritional Therapist specialising in chronic digestive issues, IBS, and stress-related gut symptoms. She works with clients who feel stuck with bloating, unpredictable digestion, fatigue, and food sensitivities despite trying multiple diets or supplements. Her approach combines functional medicine and nutritional therapy with nervous system regulation and Compassionate Inquiry. Amanda believes that while nutrition forms the foundation of health, unresolved stress patterns often influence long-term gut dysfunction. Her work supports clients in addressing both the physiological and emotional contributors to digestive health. She has particular expertise in IBS, dysbiosis, SIBO, gut-brain connection, hormone-related digestive issues, and stress-driven symptom flares. Amanda regularly supports clients with complex or long-standing cases, creating personalied protocols rooted in nervous system support to support clinical testing and personalised nutrition. Amanda is registered with BANT and CNHC and provides evidence-informed commentary on gut health, nervous system regulation, women’s health, and functional nutrition She is available for expert commentary, quotes, and interviews on digestive health, IBS, stress-related illness, women’s hormone health, and root-cause approaches to chronic symptoms.

Website. www.Renutrin.co CV: https://apps.twu.edu/my1cv/profile.aspx?type=twh&id=tSCOCmQvzxOjZUU7JCuqBQ%3D%3D Research:-How prebiotic fibers impact blood glucose outcomes and overall health. -Development of diets to improve metabolic indices and wellness. -Nutrient composition of preterm breastmilk.Other:TWU Houston Institutional Review Board (IRB) Chair 2020-2024

I am a thought leader and have a passion in making an impact in creating solutions to today's obesity epidemic.

I’m a qualified Nutritional Therapist and Personal Trainer, specialising in realistic, science-based nutrition and lifestyle coaching. My approach is designed for busy lives, looking at how you can make health simple and realistic. I’ve been through my own health journey and have been running my own nutrition practice for over a year. I specialise in female health, hormones, gut health and, burnout. I help my clients address all of these concerns whilst still living fulfilling lives.

As a Registered Dietitian I am trained in all aspects of nutrition, from the biochemistry of nutrients to the social & cultural factors that influence food choices. I provide nutrition coaching as well as medical nutrition therapy to help manage chronic diseases such as diabetes, heart disease, & obesity using the latest scientific evidence. My work has been featured in outlets such as Women's Health, Reader's Digest, Business Insider, Popsugar, Eat This Not That, SRQ Magazine, Sarasota Magazine, SNN, & more.​ Experience: Bright Body Nutrition, Owner & Registered Dietitian Sarasota Memorial Healthcare System, RENEW Lifestyle Medicine Program Coordinator Education: Tulane University, RDN Florida State University, BS Additional Certifications: Integrative & Functional Nutrition, DIFM Lifestyle Medicine Coaching, ACLM

Lola Montes is a pharmacist, nutritionist, women’s health expert, author, and speaker whose work is redefining the way women understand their bodies, their cycles, and their power. Through her bestselling book Radiance: The Essential Guide to Living in Sync with Your Cycle, her podcast, live events, and online programs, Lola has become one of the leading voices in women’s wellness, helping thousands of women reclaim their cycle as their superpower and create a life where they can truly have it all. Her bestselling book, Radiance: The Essential Guide to Living in Sync with Your Cycle, published by Planeta, has gained global attention and has become the must-have guide redefining the modern standard of women’s health. Lola shares her unique approach to women’s wellness and leadership with audiences worldwide, advising companies and delivering corporate workshops and private trainings that highlight the power of cyclical living and the benefits of integrating it into every aspect of personal and professional life. Lola’s Mission For years, Lola lived disconnected from her body — constantly doing, producing, and pushing for more, while silently struggling with symptoms her body was begging her to listen to: acne, bloating, fatigue, mood swings, low libido, and a deep sense that something wasn’t right. She tried countless “solutions” that only masked the problem — until she discovered a radically different way of living: in harmony with her cycle, her energy, and her natural rhythm. From that transformation, Radiance was born — first as Lola’s personal journey, and now as a growing movement. Through her book, podcast, and flagship programs, Lola’s mission is to help women reconnect with their bodies, embrace their cyclical nature, and unlock the power that already lives within them, so they can feel radiant, fulfilled, and limitless in every area of their lives. Your cycle is your superpower.