Most Recommended Gut Health Experts

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!

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 functional medicine practitioner and founder of Premier Integrative & Functional Medicine (Premier IFM) in Placentia, California. With more than 20 years of clinical experience, he specializes in uncovering the root causes of chronic, complex health conditions using evidence-based functional medicine. Dr. Mortensen graduated as class valedictorian from Southern California University of Health Sciences with a 3.98 GPA. He majored in pre-med and biochemistry and received academic honors from Chapman University and the American Chemical Society for excellence in organic chemistry. His postgraduate training includes certification through the Institute for Functional Medicine (IFM), along with advanced education through Functional Medicine University (FMU), the Kharrazian Institute, and the American Academy of Anti-Aging Medicine (A4M). His clinical expertise includes gut health, metabolic dysfunction, insulin resistance, cholesterol management, hormone imbalances, thyroid disorders, autoimmune disease, chronic fatigue, mold illness/CIRS, MCAS, longevity, nutrition, and preventive health. He is frequently consulted on complex cases where patients have seen multiple specialists without receiving clear answers. Dr. Mortensen's interest in functional medicine began after overcoming a debilitating health condition as a teenager that conventional medicine could not explain. That experience shaped his philosophy of identifying and addressing the underlying drivers of disease rather than simply managing symptoms. Through Premier IFM, Dr. Mortensen has helped more than 5,000 patients and is known for translating complex medical research into practical, evidence-based recommendations for both patients and the media.

Dr. Leybelis Padilla, MD, FACG, is a Gastroenterologist and Lifestyle Medicine physician who has redefined what it means to heal from within. She founded Unlocking GI, an evidence-based telemedicine program that utilizes her 4 M framework—Medicine, Meals, Mindset, and Movement—delivering personalized and sustainable micro habits that unlock vitality, improve digestive health, and elevate overall well-being. She is also a member of Dr. Joe Dispenza's Inner Health Coalition of healthcare practitioners that incorporate meditation and mindset principles into clinical practice. But her mission doesn’t stop at medicine. She’s also the co-founder of Game Beyond the Game, where alongside her husband, Prince, they curate luxury events designed to help high performers and brands transform their health, wealth, and vision. Whether she’s guiding patients or world-class achievers, Dr. Padilla is on a mission to turn obstacles into opportunities and unlock limitless potential.

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.

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

For more than 35 years, I lived with rheumatoid arthritis, allergies, and unpredictable flare-ups. While medications provided temporary relief, they never addressed the root cause. When my daughter began facing her own autoimmune challenges, I knew we needed a deeper, more sustainable approach. That search led me to the gut microbiome and its powerful role in immune function and inflammation. After implementing targeted diet and lifestyle changes, my pain decreased, my energy improved, and my RA symptoms began to stabilize. To better understand the science behind these changes, I earned a certificate as a Gut Health Nutrition Specialist and, more recently, became certified as a Holistic Nutrition Coach. Today, I help individuals identify lifestyle and dietary patterns that contribute to chronic inflammation, empowering them to make informed, sustainable choices that support long-term health from the inside out.

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.

Walid Abdin is the founder of Purely Vital Living, an independent health and wellness publication dedicated to providing evidence-based information on gut health, sleep, nutrition, energy, healthy aging, and practical lifestyle habits. He researches medical literature and translates complex health topics into clear, actionable guidance for everyday readers. Alongside his work as a digital publisher, Walid brings more than 25 years of leadership experience in the construction industry, offering a unique perspective on workplace wellness, stress management, and healthy living. His mission is to help people make informed health decisions through research-backed content and real-world experience.

I'm a Holistic Nutritionist, Registered Massage Therapist, and Certified Athletic Therapist (CAT(C)) with over 12 years and 10,000+ hours of clinical practice. I'm the founder of Gut Health Program (guthealthprogram.com), where I help people resolve gut dysbiosis, SIBO, histamine intolerance, low stomach acid, and hormone-related digestive issues through evidence-based nutrition protocols. My perspective is unusual for a gut health expert: as a hands-on clinician trained in visceral manipulation (Barral Institute), I regularly trace chronic pain, fatigue, bloating, and weight issues back to gut dysfunction that patients never suspected. I also bring lived experience, having worked through my own dysbiosis and microbiome rebuilding, so I can speak to both the clinical research and what recovery actually feels like. I'm a reliable, fast-turnaround source for stories on gut health, the microbiome, probiotics and fermented foods, SIBO, histamine intolerance, bloating, the gut-hormone connection, anti-inflammatory nutrition, and the gut-pain/gut-fatigue link. I provide original clinical insight, not recycled talking points, and I always meet deadlines.

Dr. Manthan Tripathi is a medical professional, healthcare writer, and digital health educator based in India, with a clinical foundation from Atal Bihari Vajpayee Medical University, Lucknow. He combines frontline medical training with over 3,000 published articles across patient education, preventive medicine, medical technology, and AI in healthcare, making him one of India's most prolific evidence-based health communicators. His work has appeared on platforms including Medicircle, HospitalSuggest, HealthVoice, DocVo, Dr. Malpani and IVF Matters, and is recognized for translating complex clinical concepts into accurate, reader-friendly content that helps patients make genuinely informed decisions. His healthcare and education content has generated over 55 million cumulative views across digital platforms. Dr. Tripathi brings a perspective that is rare among health sources: deep India-specific clinical knowledge, including India's disease burden, government health schemes, Indian drug brand names, and regional dietary patterns; context that generic Western health content consistently misses. He is the founder of drmanthan.com, an evidence-based health information and clinical tools platform built specifically for Indian patients, families, and medical students. He has also worked as a Subject Matter Expert with Physics Wallah and Chegg India, contributing academic content for competitive medical examinations including NEET. His areas of expertise include internal medicine, thyroid and metabolic disorders, diabetes, preventive health, and India-specific patient education. Journalists covering Indian healthcare, global health disparities, patient literacy, medical misinformation, or AI in medicine will find in Dr. Tripathi a source who speaks with both clinical accuracy and genuine public communication experience.

I'm a licensed medical doctor and the founder of KnowSeeker.com, a Nigerian lifestyle blog covering health, relationships, and family life. My medical background informs how I write about health topics—from everyday wellness questions to more sensitive medical concerns—while my relationship content draws on real cultural context often missing from Western-focused publications. I'm glad to speak on health and medical questions from a clinical perspective, as well as relationships, marriage, and dating through a Nigerian/African lens.

A company is only as strong as its people. Yet, I see it every day—burnout, stress, and chronic fatigue are draining the energy of employees, impacting performance, engagement, loyalty, and innovation. I’ve spent my career uncovering the root causes of these issues and helping people reclaim their energy, focus, and long-term health. As a physician, bestselling author, and host of the nationally syndicated TV show Ask Dr. Nandi, I’ve helped millions take control of their well-being. My latest book, Heal Your Gut, Save Your Brain, a New York Times bestseller, unpacks the critical link between gut health and cognitive wellbeing—a connection that has the power to transform not just individuals, but entire organizations. This is a core promise of The Vitality Advantage—the idea that when employees function at their best, companies thrive. I don’t just share science-backed strategies for better health—I help teams implement real changes that boost resilience, performance, and energy in a way that directly impacts business success. My message is simple: * Vitality is a Vital business advantage. * Healthy employees are more engaged, creative, and productive. * Burnout prevention starts with physical and mental well-being. * Corporate transformation happens from the ground up—one healthier, more energized employee at a time. If your company is ready to embrace The Vitality Advantage, let’s connect and discuss how I can bring this actionable, high-impact message to your organization.

Dr. Gregory Funk is a chiropractor with more than 20 years of experience and the owner of Ideal Health Chiropractic and HopeNWellness. Throughout his career, he has helped patients improve their health through chiropractic care, nutrition, and sustainable lifestyle habits. His areas of expertise include musculoskeletal health, preventive care, healthy aging, nutritional supplements, immune health, and overall wellness. He founded HopeNWellness to make high-quality supplements more accessible while supporting a larger mission of giving back, with 10% of every purchase donated to Feeding America to help fight childhood food insecurity.

Dr. Kayla Szampruch, ND, is a naturopathic doctor specializing in chronic complex illness, gastrointestinal health, autoimmune conditions, mental health, stress management, and sustainable lifestyle medicine. She takes an evidence-informed, root-cause approach that integrates clinical nutrition, behavioral medicine, and nature-based therapies to support long-term healing and resilience. Dr. Szampruch earned her Bachelor of Science in Biological Sciences from Arizona State University and completed her Doctorate in Naturopathic Medicine at Bastyr University. With more than 15 years of experience in nutritional therapy and public education, her work focuses on helping patients navigate chronic inflammatory conditions, digestive disorders, stress-related illness, burnout, and complex cases where conventional approaches alone have fallen short. In addition to clinical practice, Dr. Szampruch develops wellness retreats, educational programs, and community-based experiences centered on whole-person healing, longevity, and sustainable health practices.

Dr. Eric Berg, D.C., is a leading health educator, best-selling author, and founder of the Berg Institute of Health & Wellness. With over 30 years of experience in chiropractic care and natural health, he has helped millions take control of their health through practical education, science-based nutrition, and his pioneering work in Healthy Keto® and intermittent fasting. Academic & Clinical Education Doctor of Chiropractic Palmer College of Chiropractic, Davenport, IA — 1985-1988 Undergraduate Pre-Medical Studies University of Wisconsin-Parkside — 1983-1985 Army Reserves – X-ray Technician Ft. Jackson, SC | Ft. Sam Houston, TX | Ft. Riley, KS | St. Phillips College, TX — 1983-1987 Licensure & Certifications Virginia Board of Medicine – Chiropractic License #1851 California Chiropractic License #20123 Louisiana Chiropractic License #875 Certificate of Proficiency in Chiropractic Radiography Certification in Neuro-Selective Current Perception Threshold Diagnostics (#30166) Teaching Experience Associate Professor – Community Health Division (Nutrition) Howard University, Washington, D.C. — Jan-June 2005 Professional Appointments & Affiliations Director, The Health & Wellness Center, Alexandria, VA — 1997-Present Private Practice, CA & LA — 1990-1997 Internships: Sound Chiropractic (WA) & Moll Chiropractic (CA) Member, Endocrine Society Advisory Panel, Health Science Institute Clinical Associate, Clinical Electromedical Research Academy (CERA) Honorary Member, Price-Pottenger Nutrition Foundation Member, International Academy of Chiropractic Occupational Health Consultants Member, American Association for Health Freedom Publications & Media Author: – The 7 Principles of Fat Burning – Healthy Hormones, Healthy Life – Dr. Berg’s Body Shape Diets Publisher: HealthySelf Newsletter Digital Education: – Over 5700 health and nutrition videos – YouTube channel with 31,000,000+ subscribers (multi-languages) Research Participation RAND Corporation – Participant, Chiropractic Outcomes Research, 1993 Seminar Leadership & Government Outreach Conducted over 4,950 health seminars and educational workshops for patients, healthcare practitioners, and government agencies including: FCC, FBI, NIH, NSF, DOJ, DOT, DOE, Department of Interior, and Library of Congress Conference Speaking Engagements Health Science Institute Wellness Symposium Sanibel Harbor Resort & Spa, FL — Sept 2000 Continuing Education & Specialized Training Extensive postgraduate coursework in BEST Technique, CRA, NAET, Clinical Nutrition, Fibromyalgia, Scoliosis, and others. Media Features & Interviews Featured in: FOX & Friends, CBS Channel 9, Woman’s World, New Beauty, Men’s Exercise, and multiple national radio outlets. Recognitions & Awards Proclamations from the Mayor of Shreveport, Governor of Louisiana, and national awards for public health education. Published Research Inhibition of SCOT and Ketolysis Decreases Tumor Growth and Inflammation in the Lewis Cancer Model Abolhassani, R.; Berg, E.; Tenenbaum, G.; Israël, M. | JJ Oncology and Clinical Research, 2022 Demonstrated in a mouse Lewis cancer model that inhibiting the ketolytic enzyme SCOT using acetohydroxamic acid (AHA) slows tumor growth and reduces NF-?B-mediated inflammation. Cancer Metabolism: Fasting Reset, the Keto-Paradox and Drugs for Undoing Israël, M.; Berg, E.; Tenenbaum, G. | Journal of Clinical Medicine, 2023, 12(4), 1589 Comprehensive review exploring ketone metabolism in cancer–focusing on SCOT and ACAT1–and proposing metabolic strategies such as fasting and enzyme inhibition. Link: https://www.mdpi.com/2077-0383/12/4/1589 Unraveling the Cancer Metabolism: Fasting Reset, Ketogenic Diet, and Therapeutic Strategies Berg, E.; Tenenbaum, G.; Israël, M. | Journal of Cancer Research Reviews & Reports, 2023, 5(2) Explores SCOT/ACAT1 dependency, ketone metabolism, and novel inhibitors like karrikins and vitamin C. Branched Chain Amino Acid Ketones, or Ketolysis of Beta-Hydroxybutyrate Support Lipogenesis and Tumour Growth Israël, M.; Berg, E.; Tenenbaum, G. | British Journal of Healthcare and Medical Research, 2024, 11(4), 69-75 Highlights tumor reliance on BHB and BCAA for lipogenesis via ketolysis. Two Antisense Non-Coding RNAs Regulate Their Sense Gene mRNAs: OXCT1-SCOT for Ketolysis and FGF-14 as an Anti-Proliferation Factor in Cancer Berg, E.; Tenenbaum, G.; Israël, M. | British Journal of Healthcare and Medical Research, 2025, 12(3) Identifies novel antisense RNAs regulating metabolic enzymes relevant to cancer growth. Frataxin–An Anti-Tumor Protein That Activates Oxidative Metabolism at the Expense of Ketolysis: Regulation of SCOT-OXCT1 Berg, E.; Tenenbaum, G.; Israël, M. | British Journal of Healthcare and Medical Research, 2024, 11(1) Discusses frataxin’s role in promoting oxidative metabolism and suppressing ketolysis in tumors.

Clare is an experienced nutritional professional with a focus on gut health and wellness. The Founder of DAYLY, a gut health and wellness start-up, Clare has a passion for helping individuals achieve optimal health through improved digestion and microbial diversity. Clare has an undergraduate degree in Nutrition and Dietetics and is certified as an integrative and functional nutrition specialist.

I am an entrepreneur in the medical industry working on creating a new way to approach healthcare and wellness. The company is called Selph, it is a healthcare revolution to provide individuals with the tools to optimise their health. I am a trained General Practitioner and prior to my medical training I completed a PhD looking at the impact of nutrition and probiotic supplementation on metabolism and the developing immune system. I am fascinated by the interaction between the microbiome and health and was a past member of the science translational committee for the International Scientific Association for Probiotics and Prebiotics as well as a founding member of the International Cancer Microbiome Consortium. During my clinical training I became excited in the importance of the mind in physical health and vice versa and so I trained as an accredited mindfulness teacher specialising in mindfulness for stress and mindfulness for chronic pain.

## Dr. Tim Scott Dr. Tim Scott isn't your typical physician. After a decade in emergency medicine witnessing the devastating consequences of metabolic dysfunction firsthand, he realized a hard truth: our healthcare system excels at crisis management but fails miserably at preventing disease. As the founder of Rixa Health, Dr. Scott has pioneered an approach to medicine that looks beyond symptoms to address the root causes of today's most prevalent health issues. His expertise in metabolic health, functional medicine, and cutting-edge therapeutics has helped thousands of patients reclaim their health after years of being told their lab work was "normal" despite feeling terrible. Known for his direct, no-nonsense approach, Dr. Scott combines advanced medical knowledge with practical solutions that work in real life, not just in textbooks. He specializes in reversing metabolic disorders, optimizing hormonal health, and using peptide therapies to address complex health challenges that conventional medicine often misses. Dr. Scott is passionate about empowering patients through education, believing that understanding your body is the first step to healing it. When he's not transforming patients' health, he's advancing the field through education, speaking engagements, and training the next generation of metabolic health practitioners.