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 not your typical nutritionist. I teach busy women science-based tools, to self-manage their energy, focus, weight, gut, and hormone health ...so that they look, feel, and work well. I offer science-based Nutrition and Lifestyle advice that's been proven to work. 1:1 consults, on-line classes, and as a keynote speaker. In organisations, I speak on all thing's wellness (Work + Well series). Curated for professionals these are designed to empower people with the tools they need to stay well. Current seminars are: . Fuel your success (How to get the energy you need to succeed) . Stress RX (Resilience Remedies) . Work-Life-Hormone Balance (Female-specific advice for all ages including Perimenopause & beyond). I do all of this while continuing to contract in senior Project roles - so I live what I teach daily. You'll also find me at the Auckland Executive Club as President in a volunteer role - a not-for-profit club that exists to develop women of all ages, groups, industries and backgrounds in business.

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.

Plant-based raw food expert with 16+ years of personal practice backed by 21+ years of medical records. Seven-time marathoner. Founder of Raw Foodiest coaching platform. Publishing IN NATURE WE TRUST manifesto March 2026. I teach energy-based health principles grounded in real-world results, not recipes.

​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. 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.

Struggling with gut issues? You’re not alone. Bloating, fatigue, unpredictable digestion—you’ve tried eating healthy and working out, but nothing seems to work. That’s because gut health needs a personalized approach. I help busy, professional women uncover the root causes of their symptoms using functional lab testing, tailored protocols, and 1:1 coaching—so you can finally feel good in your body again. If this sounds like you, we should chat: 👉 You feel bloated or puffy, even when eating “healthy” and exercising. 👉 You’re tired, relying on caffeine and sugar to power through your day. 👉 Your labs are “normal,” but you know something isn’t right. 👉 You’ve been told “just manage it” with medication but want real solutions. 👉 Social events feel stressful because your digestion is unpredictable. 👉 You’ve tried everything to lose weight, but it won’t budge. Here’s how I help: 1. Test, Don’t Guess – Gut testing + deep dive into symptoms, diet, and lifestyle 2. Personalized Plan – The right foods, supplements, and lifestyle shifts for YOU 3. Ongoing Support – Weekly check-ins to keep you on track

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

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.

I have been working for the past twelve years as a Registered Dietitian. In my current role as inpatient RD at St Thomas Elgin General Hospital I specialize in critical care and stroke nutrition. I am also the owner of Gut Healthy Dietitian Inc., where I lead a team of dietitians in providing individual and group nutrition counselling services to a wide range of clients, as well as media work. In addition to our virtual clinic we provide the dietitian services at Western University to students, staff, and faculty. I enjoy public speaking with experience at corporate events, conferences and media speaking engagements.

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.

Caroline Carralero is the Founder & CEO of Daily Nouri, a microbiome health company on a mission to make the highest quality daily probiotic and prebiotic solutions accessible to all. Caroline has founded, advised and invested in multiple health and wellness brands and has over a decade of experience working with leading global retailers. She is the host of the Gut Check Podcast, a forum for candid and informative conversations with leading health experts, physicians, and entrepreneurs on the gut microbiome, health and wellness. Caroline lives in Southern California with her family.

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

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.

I'm a board-certified physician in both Emergency Medicine and Obesity Medicine, and founder of Highland Longevity, a concierge longevity clinic in Fort Worth, Texas. My perspective on metabolic health is shaped by both clinical expertise and personal experience. I lost 87 pounds using GLP-1 medications—but made the common mistake of losing significant muscle in the process. That experience drove me to redesign my entire approach: I subsequently lost an additional 17 pounds of pure fat while preserving lean tissue. This journey transformed how I practice medicine and gave me firsthand insight into the challenges my patients face. With over 6,000 clinical hours in emergency medicine, I've seen the downstream consequences of metabolic disease—and became convinced that the real opportunity lies in prevention and optimization, not just acute intervention. I founded Highland Longevity to bridge the gap between reactive sick care and proactive health optimization. My practice focuses on medical weight loss, hormone optimization, and advanced diagnostics including DEXA body composition analysis and VO2 max testing. I emphasize evidence-based, physician-guided protocols using only FDA-approved medications or properly compounded pharmaceuticals. I speak and write about the science of sustainable weight loss, muscle preservation during caloric deficit, GLP-1 medications, hormone optimization, and the metabolic adaptations that make weight management so challenging for most people. Expertise: Obesity Medicine, GLP-1 Therapy, Metabolic Health, Longevity Medicine, Hormone Optimization, Body Composition

Dr. Nicholas Klaiber is a double board-certified physician in Allergy & Immunology and Pediatrics, and the founder of Virginia Allergy Treatment Center PLLC in Richmond, VA. With more than a decade of clinical experience, Dr. Klaiber specializes in the diagnosis and management of food allergies, asthma, eczema, environmental allergies, and complex immune conditions. A regional leader in Oral Immunotherapy (OIT), Dr. Klaiber has helped hundreds of children and adults safely reduce their risk of severe reactions and reclaim their quality of life. His patient-centered approach emphasizes evidence-based care, advanced diagnostic testing, and individualized treatment plans. Dr. Klaiber has published widely in peer-reviewed medical journals throughout his career and remains active in clinical research and medical education. He has been recognized by patients and families for his compassionate, accessible care—including being named Individual Allergist Winner by Fredericksburg Parent Magazine in 2025. At Virginia Allergy Treatment Center, Dr. Klaiber is committed to expanding access to innovative, lifesaving therapies such as OIT, biologics, and infusion-based immune treatments. He regularly provides expert commentary for journalists on topics related to food allergies, anaphylaxis, asthma management, immune disorders, and emerging therapies.

I have received my Master's Degree in Human Nutrition, as well as completed my undergraduate degree in community health and athletic training. In 2019, I was chosen to be a board member of the Minnesota Board of Dietetics and Nutrition, currently, I am the sitting Vice-Chair. I have been working in the Functional Medicine field for over a decade. My experience expands a myriad of populations and needs. Areas of interest include but are not limited to; digestive health, female hormones, anxiety, and eating disorders. I am passionate about healing the body through nutrition, by facilitating detailed nutrition consultations with an emphasis on the root cause of the disorder and/or disease in the body. I have taught several in-house and corporate classes, as well as, co-host a weekly radio broadcast.

Jennifer Fugo, MS, LDN, CNS is a clinical nutritionist empowering adults who’ve been failed by conventional medicine to beat chronic skin and unending gut challenges. She has experience working with conditions such as eczema, psoriasis, rosacea, dandruff + hives — with clientele ranging from regular folks to celebrities + professional athletes.Jennifer also founded her own line of skincare + supplements available at www.QuellShop.com specifically for people struggling with these chronic skin issues. She holds a Master’s degree in Human Nutrition from the University of Bridgeport and is a Licensed Dietitian-Nutritionist and Certified Nutrition Specialist. Her work has been featured on Dr. Oz, Reuters, Yahoo!, CNN, and many podcasts and summits. Jennifer is a faculty member of the LearnSkin platform, an Amazon best-selling author, and the host of the Healthy Skin Show podcast.

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.