Understanding the Gut-Lung Axis and How to Restore Respiratory Health Through the Gut Microbiome episode artwork

EPISODE · Oct 9, 2025 · 42 MIN

Understanding the Gut-Lung Axis and How to Restore Respiratory Health Through the Gut Microbiome

from OneMedicine Podcast · host Rob Lutz

In this episode of the OneMedicine Podcast, Kara Siedman, a registered dietitian, and Dr. Vivek Lal, the founder and CEO of ResBiotic, joined Rob Lutz for an in-depth discussion on the gut-lung axis and how the microbiome can impact respiratory and metabolic health. They covered:·         The importance of the gut microbiome as the "foundation" for overall health and resilience·         How specific probiotic strains and botanical blends can support lung function and reduce inflammation·         The concept of "postbiotics" and how they can naturally support metabolic markers like GLP-1·         The need for rigorous scientific research and clinical validation in the supplement industryKara and Vivek emphasized the value of taking a targeted, precision approach to supporting the microbiome, rather than generic, one-size-fits-all supplements. They challenged practitioners to consider the microbiome as a central hub that connects various body systems. Links: ResBiotic Nutrition  - https://resbiotic.com  Bios: Dr. C. Vivek Lal, MD, FAAP is a physician scientist and innovator based in Birmingham, AL, USA. Dr. Lal is a double board-certified physician, having completed medical school, residency training and clinical fellowship in neonatal and perinatal medicine. He also completed a research fellowship in pulmonary and vascular biology from UT Southwestern Medical Center, Dallas, TX and executive program in drug and device development from MIT, Boston, MA. On the academic side, Dr. Lal serves as Director of Clinical Innovation at The Marnix Heersink Institute of Biomedical Innovation at the University of Alabama at Birmingham (UAB) and is the Director of Pulmonary Microbiome Lab.  Dr. Lal is a serial entrepreneur, and Founder of Biostack Ventures through which he launched successful companies such as ResBiotic Nutrition which makes consumer probiotics, Alveolus Bio which does FDA approved pulmonary drug development. Dr. Lal also co-founded and serves on the Board for Urgent Care for Children, a Southeast US based urgent care chain. He serves as the CEO of ResBiotic Nutrition.  Dr. Lal serves on the Board of Microbiome Therapeutics Innovation Group, the Washington DC based national advocacy group for FDA approved microbiome therapeutics, and on the Executive Board of BIO Alabama. In addition, Dr. Lal is a member of Society of Pediatric Research, American Thoracic Society and other national and international societies.  Kara Siedman, RDN, CDCES, is a registered dietitian and certified diabetes care and education specialist with over 15 years of clinical experience in inpatient care, outpatient program development, and integrative/functional nutrition. She earned her degree from the University of Massachusetts Amherst and completed her dietetic internship at Cal Poly San Luis Obispo. Kara’s work in a leading gastroenterology practice sparked her transition into functional nutrition, where she integrated root-cause approaches into GI care and became a mentor and key opinion leader in the field. Her passion for the gut microbiome evolved into a professional specialty, leading her to collaborate with biotech and microbiome-focused companies like Pendulum, Microbiome Labs, and now ResBiotic Nutrition. As Director of Partnerships at ResBiotic, Kara educates healthcare providers on microbiome science and the clinical application of targeted microbiome therapies. Known for her ability to simplify complex research, she brings clarity, credibility, and passion to gut health education.Kara Siedman - [email protected]  Thanks for listening in. I hope you found today’s episode interesting and came away with a few insights you can apply to your practice. If you want to go deeper on this topic or anything else, please visit https://todayspractitioner.com and consider registering for our weekly newsletter as well. Thanks again, and I hope you’ll join us next time.

In this episode of the OneMedicine Podcast, Kara Siedman, a registered dietitian, and Dr. Vivek Lal, the founder and CEO of ResBiotic, joined Rob Lutz for an in-depth discussion on the gut-lung axis and how the microbiome can impact respiratory and metabolic health. They covered:·         The importance of the gut microbiome as the "foundation" for overall health and resilience·         How specific probiotic strains and botanical blends can support lung function and reduce inflammation·         The concept of "postbiotics" and how they can naturally support metabolic markers like GLP-1·         The need for rigorous scientific research and clinical validation in the supplement industryKara and Vivek emphasized the value of taking a targeted, precision approach to supporting the microbiome, rather than generic, one-size-fits-all supplements. They challenged practitioners to consider the microbiome as a central hub that connects various body systems. Links: ResBiotic Nutrition  - https://resbiotic.com  Bios: Dr. C. Vivek Lal, MD, FAAP is a physician scientist and innovator based in Birmingham, AL, USA. Dr. Lal is a double board-certified physician, having completed medical school, residency training and clinical fellowship in neonatal and perinatal medicine. He also completed a research fellowship in pulmonary and vascular biology from UT Southwestern Medical Center, Dallas, TX and executive program in drug and device development from MIT, Boston, MA. On the academic side, Dr. Lal serves as Director of Clinical Innovation at The Marnix Heersink Institute of Biomedical Innovation at the University of Alabama at Birmingham (UAB) and is the Director of Pulmonary Microbiome Lab.  Dr. Lal is a serial entrepreneur, and Founder of Biostack Ventures through which he launched successful companies such as ResBiotic Nutrition which makes consumer probiotics, Alveolus Bio which does FDA approved pulmonary drug development. Dr. Lal also co-founded and serves on the Board for Urgent Care for Children, a Southeast US based urgent care chain. He serves as the CEO of ResBiotic Nutrition.  Dr. Lal serves on the Board of Microbiome Therapeutics Innovation Group, the Washington DC based national advocacy group for FDA approved microbiome therapeutics, and on the Executive Board of BIO Alabama. In addition, Dr. Lal is a member of Society of Pediatric Research, American Thoracic Society and other national and international societies.  Kara Siedman, RDN, CDCES, is a registered dietitian and certified diabetes care and education specialist with over 15 years of clinical experience in inpatient care, outpatient program development, and integrative/functional nutrition. She earned her degree from the University of Massachusetts Amherst and completed her dietetic internship at Cal Poly San Luis Obispo. Kara’s work in a leading gastroenterology practice sparked her transition into functional nutrition, where she integrated root-cause approaches into GI care and became a mentor and key opinion leader in the field. Her passion for the gut microbiome evolved into a professional specialty, leading her to collaborate with biotech and microbiome-focused companies like Pendulum, Microbiome Labs, and now ResBiotic Nutrition. As Director of Partnerships at ResBiotic, Kara educates healthcare providers on microbiome science and the clinical application of targeted microbiome therapies. Known for her ability to simplify complex research, she brings clarity, credibility, and passion to gut health education.Kara Siedman - [email protected]  Thanks for listening in. I hope you found today’s episode interesting and came away with a few insights you can apply to your practice. If you want to go deeper on this topic or anything else, please visit https://todayspractitioner.com and consider registering for our weekly newsletter as well. Thanks again, and I hope you’ll join us next time.

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This episode is 42 minutes long.

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This episode was published on October 9, 2025.

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In this episode of the OneMedicine Podcast, Kara Siedman, a registered dietitian, and Dr. Vivek Lal, the founder and CEO of ResBiotic, joined Rob Lutz for an in-depth discussion on the gut-lung axis and how the microbiome can impact respiratory and...

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