Welcome back to The Sisterhood of S.W.E.A.T., where we help women step into strength, vitality, and purpose — body, mind, and spirit.
Today’s guest is a leader in the science of brain health, immune function, and evidence-based nutrition. Dr. John E. Lewis, Ph.D., is the Founder and President of Dr Lewis Nutrition® and one of the most respected clinical researchers in his field. He has conducted more than 30 clinical trials, published over 180 peer-reviewed articles, and his groundbreaking Alzheimer’s study — featured in the Journal of Alzheimer’s Disease — helped spark his popular TEDxMiami talk and his mission to bring powerful, research-backed nutrition directly to the public.
After decades in academia, Dr. Lewis shifted from research to real-world impact, driven by one core belief: nutrition is our number one behavior for achieving and maintaining long-term health. For more than 27 years, he has lived what he teaches — a whole-food, plant-based diet, targeted supplementation, and a consistent, disciplined fitness routine.
In this conversation, we dive into the science and practical strategies that can help you protect your brain, strengthen your immune system, and take control of your health at any age.
Dr. Lewis’s personal journey
– What inspired him to pursue clinical nutrition research
– Key discoveries from his years at the University of Miami
– Why he chose to leave academia and create solutions for the public
The power of polysaccharides
– What polysaccharides are and why they matter for brain and immune function
– How plant-based sources like aloe vera and rice bran support cellular repair
– Why nutrient-dense compounds can outperform isolated supplements
Nutrition and long-term health
– The biggest problems with the standard American diet
– The role of chronic inflammation in disease
– How whole-food, plant-based nutrition supports cognitive longevity
Lifestyle, supplementation, and real-world habits
– The dietary and supplemental strategies Dr. Lewis uses personally
– Key nutrients that support immune and brain health
– His top five daily behaviors for long-term vitality
Simple steps to get started today
– How to determine which supplements are truly beneficial
– The most important action anyone can take right now to improve their health trajectory
Dr. Lewis Nutrition® — Sisterhood of S.W.E.A.T. Discount
10% off: https://drlewisnutrition.com/sossweat
Dr. John E. Lewis — Research & Publications
Google Scholar: https://scholar.google.com/citations?user=gWBxU6sAAAAJ
ResearchGate: https://www.researchgate.net/profile/John-Lewis-24
TEDxMiami Talk
https://www.youtube.com/watch?v=KsPXD5YgWfE
LinkedIn
https://www.linkedin.com/in/john-e-lewis-phd
Instagram
https://www.instagram.com/drlewisnutrition
YouTube Channel
https://www.youtube.com/@DrLewisNutrition