Ep. 357: What Your Doctor ISN'T Telling You About Food with Dr. Alan Desmond

Rip welcomes back Dr. Alan Desmond, consultant gastroenterologist, lifestyle medicine advocate, and author of the new book, What Your Doctor Isn’t Telling You About Food.

Dr. Desmond explains why food is one of the most important — and most neglected — conversations in modern medicine. It’s not that doctors don’t care. As Alan shares, many doctors simply receive very little practical nutrition training, leaving them without the confidence or tools to guide patients through meaningful dietary change.

Alan talks about the urgent gap between lifespan and healthspan, and why so many people are living longer but spending more years with chronic illness. Alan introduces the concept of “micro-lives” — 30-minute chunks of life expectancy that can be gained or lost through daily choices — and explains how whole plant-based foods can help stack the odds in favor of longevity, vitality, and disease prevention.

This conversation also tackles some of the biggest nutrition myths and blind spots, including the persistent idea that plant protein is incomplete or inferior. Alan breaks down why plant protein delivers amino acids in a far healthier package — with fiber, phytonutrients, antioxidants, and heart-supportive fats — while animal protein often comes bundled with saturated fat, dietary cholesterol, heme iron, and zero fiber.

Rip and Alan also discuss why fiber deserves far more attention than protein, how processed meats like bacon are linked to colorectal cancer risk, what dietary change can mean for type 2 diabetes and inflammatory bowel disease, and why a healthy plate should be built around fruits, vegetables, whole grains, legumes, nuts, and seeds.

This episode is not about shame. It’s about possibility. It’s about changing your personal food system so that the healthier choice becomes the easier choice — and letting those changes ripple outward to your family, your community, and the world.

In This Episode, You’ll Learn:

• How little nutrition training many doctors receive — and why that matters
• Why healthspan is just as important as lifespan
• What “micro-lives” are and how daily food choices can add up over time
• Why plant protein is high-quality protein
• How a small 3% shift from animal protein to plant protein may significantly improve long-term health outcomes
• Why most people overestimate their fiber intake
• How to think about building a healthy plate
• Why processed meats like bacon deserve serious concern
• How whole food, plant-based eating can support metabolic health
• What Dr. Desmond has seen in patients with type 2 diabetes, inflammatory bowel disease, and gestational diabetes
• Why changing your home food environment can help shift the larger food system

Watch the Episode on YouTube

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