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. 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.

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 became a certified Gut Health Nutrition Specialist. 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. 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. 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.

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. Geny Augustine is a physician at Solace who knows firsthand how challenging the U.S. healthcare system can be for patients. Having worked with diverse patient populations throughout her career, she's seen how the system's complex nature can create unnecessary barriers to getting good care—which is exactly what drew her to Solace's mission of putting patients first. Dr. Augustine completed her medical education in Bonaire, Netherlands Antilles, and previously worked as a Family Medicine physician for Banner Health in Glendale, Arizona. She's passionate about improving patient care, leading quality improvement projects like her work on hypertension management in urban environments, which earned honorable mention for the SLUHN Quality Improvement Award in 2020. Fluent in English with intermediate Spanish skills, she brings both clinical expertise and cultural understanding to her patient relationships. When she's not advocating for patients, Dr. Augustine enjoys fitness, culinary arts, fine arts, travel, and volunteer work—pursuits that reflect her belief in whole-person wellness and giving back to her community.

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.

April Likins is a board-certified health coach and nationally recognized stress and burnout expert, triple-trained through Duke Integrative Medicine, the Institute for Integrative Nutrition, and Precision Nutrition. Her insights and personal story have been featured in Mantra Wellness, Better Humans, Wellbeing Magazine, Authority Magazine, and on 50+ podcasts worldwide. After hitting burnout and experiencing a total health collapse following her father’s death, April turned her pain into purpose. Now, she’s fiercely committed to helping leaders and high-achieving professionals move from burnout and survival mode to clarity, resilience, and vibrant well-being. Learn more at www.aprillikins.com

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.

I'm Joana, a registered Nutritional Therapist accredited by the Association of Naturopathic Practitioners (ANP). My passion for nutritional therapy began with my own health challenges. Struggling with Typhoid Fever, IBS, SIBO, and Hypothyroidism, I spent years searching for relief. It wasn’t until I discovered the healing power of nutrition and functional medicine that I experienced lasting improvements in my physical and mental health. Now I’m here to help you feel your best. Whether you’re addressing gut imbalances, hormonal concerns, fatigue, stress, or simply seeking to optimize your well-being, I provide tailored, compassionate guidance. I help you to fix your gut issues when nothing else worked. In our work together, you can expect a collaborative, supportive, and non-judgmental environment where your goals take centre stage. Let’s create a healthier, more vibrant you.‍ ‍

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.

Healing your gut can be complex. Have you been from doctor to specialist and you are still at square one? Do you feel bloated, suffer from abdominal pain, constipation, or diarrhea? Over the past 30 years in private practice, I have helped patients who have suffered from IBS, Crohn’s, Reflux, SIBO, and more and have successfully helped transform their gut health, and as a result that have gotten their life and vitality back. Yes, there is a simple solution. Learn how to heal your gut: https://www.theguthealthspecialists.com/healyourgut

I am an MD-PhD physician-scientist with a passion for translating complex clinical and scientific data into clear, accurate content. My training and experience span clinical practice and translational research, with expertise across oncology, immunology, gastroenterology, inflammation & metabolism, and rare diseases. With over 10 years of experience, I have supported key deliverables including more than 30 peer-reviewed publications, manuscripts, slide decks, literature reviews, and scientific narratives. I enjoy working in collaborative, deadline-driven environments and am particularly interested in medical writing, medical information, and publication development, where scientific accuracy and effective storytelling intersect.

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