Ep. 89: Dr. Thomas Seyfried | Cancer as a Metabolic Disease & the Role of Nutrition in Healing-

In this groundbreaking episode, Dr. John Barnes welcomes legendary researcher and author Dr. Thomas Seyfried to challenge everything you thought you knew about cancer. Rather than viewing cancer as a genetic destiny, Dr. Seyfried presents compelling evidence that it is, at its core, a metabolic disease—and that gives us the power to fight back.

Together, they explore how modern lifestyles and processed nutrition disrupt our evolutionary biology, contributing to mitochondrial dysfunction and the onset of chronic disease—including cancer. More importantly, they reveal how targeted dietary strategies like ketogenic therapy, fasting, and carbohydrate restriction can support healthy cells, starve cancer cells, and restore the body’s natural resilience.

Highlights include:
✅ The Warburg effect and why damaged mitochondria—not mutated genes—may be the true root of cancer
✅ How nutrition can be used not just to prevent, but to treat cancer alongside other therapies
✅ The critical role of glucose and glutamine in tumor growth—and how to cut off the fuel supply
✅ Empowering patients and practitioners to take action through metabolic health strategies

This conversation is a masterclass in metabolic medicine and a beacon of hope for anyone touched by cancer. Whether you’re a patient, provider, or simply health-curious, this episode will equip you with science-backed tools to make Life Possible—even in the face of cancer.

If you found this information helpful, please consider donating to support Professor Seyfried’s cancer metabolic therapy research. This can be done in the below ways:

Professor Seyfried’s Biology Department –

Foundation for Cancer Metabolic Therapies –

A message from Professor Seyfried: “Please consider a donation ONLY if the information helps you. Your donation will keep our work moving forward.”

Thanks for watching!