The Dr Vonda Show

#1 Menopause Gut Expert: Why Your Microbiome CONTROLS Hormones, Mood & Bone Loss | Cynthia Thurlow | #145

13 snips
Jan 27, 2026
Cynthia Thurlow, nurse practitioner and author focused on hormones, intermittent fasting, and the menopause gut. She explains how midlife shifts in estrogen reshape the microbiome and immune response. Short bursts cover leaky gut, bone risk, mood links, fiber and fermented foods, stress and trauma effects, and practical first steps to rebuild gut resilience.
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INSIGHT

Microbiome Is A Whole‑Body System

  • The gut microbiome is a vast community of ~40 trillion microbes that interacts with every organ system.
  • Hormonal shifts across life (puberty, pregnancy, perimenopause) reshape the microbiome and its functions.
INSIGHT

Estrogen Loss Drives Gut Inflammation

  • Declining estrogen weakens the gut barrier, raises inflammation, and increases infection risk.
  • This inflammatory shift can accelerate bone breakdown and raise autoimmune risk during perimenopause.
ANECDOTE

Food Poisoning Example Shows Immune Shift

  • Cynthia Thurlow caught Giardia in Morocco despite eating the same food as her husband.
  • She links her severe food poisoning to immune changes tied to estrogen and the gut barrier.
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