About this episode

Dr. Will Bulsiewicz joins Samantha Harris to discuss gut health, inflammation, and nutrition for long-term vitality.

Heal Your Gut, Lower Inflammation, and Live Longer with guest expert Will Bulsiewicz, MD While most of the wellness world is shouting about what to cut out, Dr. B is here to show us what we’ve been starving for: "Nutrition should be about adding more of the stuff that is missing, that our body terribly needs in order to be healthy" . In this episode, I'm joined by triple board-certified gastroenterologist Dr. Will Bulsiewicz to dissect the "triad" of your gut microbes, your gut barrier, and your 70% of your immune system. We’re moving past basic fitness to tackle the chronic inflammation that Dr. B found in over 130 different health conditions. From why you should be "refrigerating your sourdough" to create metabolism-boosting resistant starch, to the "second meal effect" that keeps your blood sugar stable for hours, this episode is a tactical roadmap for long-term vitality. And don’t worry—we still make room for the "Thai noodles" because your health is a practice, not a prison. In this episode, you will learn: Why you truly can’t out-exercise a poor diet How the gut–immune–inflammation triad impacts midlife health What trials reveal about saturated fat, seed oils, and…

People in this episode

Host: Samantha Harris

Guest: Will Bulsiewicz, MD

Topics covered

• gut health
• inflammation
• nutrition
• metabolic health
• chronic disease
• dietary fiber

Keywords

• gut microbes
• chronic inflammation
• resistant starch
• blood sugar stability
• metabolic flexibility
• short-chain fatty acids

Mentioned in this episode

Organizations: Nutrition, GLP-1, sourdough, beans, whole grains

More episodes of Your Healthiest Healthy with Samantha Harris

• The Estrogen Exit: Your Midlife Revolution Solution with guest expert Mary Claire Haver, MD #60 · April 21, 2026 · 1h 27m
• Eat More, Weigh Less for Life with guest Neal Barnard, MD - #59 · April 8, 2026 · 44 min
• Beat the Bloat for Good with guest Dr. Megan Rossi - #58 · April 1, 2026 · 35 min
• Shatterproof Bones: Strength for Life with guest expert Dr. Vonda Wright - #56 · February 25, 2026 · 1h 14m
• Durability Over Longevity: Build Your Pain-Free Body with guest expert Juliet Starrett - #55 · February 18, 2026 · 1h 11m
• Strong today, Independent at 80 with guest expert Hailey Babcock - #54 · February 11, 2026 · 58 min

Explore listener stats, chart rankings, contacts and more on the Your Healthiest Healthy with Samantha Harris podcast page.