July 22, 2025

Episode 10 – Supplementing Dietary Nutrients: Navigating Controversy, Evidence and Clinical Use

A conversation with: Dr. Thomas Guilliams Hosted by: Benjamin Brown

Listen now on: 

Description:

Thomas G. Guilliams, PhD is an expert in a systems-biology based approach to dietary interventions, lifestyle medicine and nutritional and herbal supplements. This conversation shares his insights from extensive experience in dietary supplements that culminated in the publication of a foundational textbook, Supplementing Dietary Nutrients. We discus important themes such as how to contextualise the use and expectations of supplements alongside dietary and lifestyle changes, marketing vs. science, bioavailability, and issues around quality.

Guest:

Thomas G. Guilliams, PhD

About our guest:

Thomas G. Guilliams, PhD (Tom) earned his doctorate in molecular immunology from the Medical College of Wisconsin. For the past 28 years, he has spent his time investigating the mechanisms and actions of lifestyle and nutrient-based therapies and is an expert in the science and therapeutic uses of dietary supplements. Tom currently serves as an adjunct associate professor at the University of Wisconsin School of Pharmacy and was the VP of Science for Ortho Molecular Products for 24 years (he now serves them as a consultant). Over the past decade, he has written a series of teaching manuals (Road Maps) that teach and evaluate the principles and protocols that are fundamental to the functional and integrative medical communities. His publication The Role of Stress and the HPA Axis in Chronic Disease Management, now in its second edition, has become the standard for teaching this critical topic to healthcare professionals.  He is the founder and director of the Point Institute, an independent research and publishing organization that facilitates the distribution of his many publications. A frequent guest-speaker, Dr. Guilliams provides straight-forward science-based training to a variety of healthcare disciplines in the use of lifestyle and non-pharmacological therapies. Tom is an avid outdoorsman with too many hobbies to list. He is blessed to live in the woodlands of Central Wisconsin with his family.

Guest website and links: 

Selection of our guest’s publications: 

  • Guilliams, T. Supplementing Dietary Nutrients, Second Edition. The Point Institute. 2020.

  • Guilliams, T. Bioavailability of Supplemental Dietary Nutrients: Challenges and Conundrums. The Point Institute. 2020.

  • Guilliams TG, Weintraub J. Implementing Personalized Dietary Interventions for Immune-Mediated Inflammatory Diseases. Integr Med (Encinitas). 2023 Nov;22(5):18-26.

  • Guilliams TG, Drake LE. Meal-Time Supplementation with Betaine HCl for Functional Hypochlorhydria: What is the Evidence? Integr Med (Encinitas). 2020 Feb;19(1):32-36.