The first 1000 days of life — from conception to around age two — are now recognised as one of the most critical windows for shaping long-term health. And at the heart of that conversation? The infant microbiome.

Today’s guest, Dawn Whitten, is a naturopath, herbalist, and International Board Certified Lactation Consultant with over 20 years of clinical experience in perinatal and early life health. She’s a leading educator, researcher, and clinician dedicated to helping both parents and practitioners understand the microbiome, breastfeeding, and maternal wellbeing on a much deeper level.

Whether you’re navigating this season of life yourself, supporting others through it, or simply curious about the foundations of health, this conversation is packed with science-backed insights and practical takeaways.

In this episode, we chat about:

• Why the first 1000 days are so foundational for lifelong health
• How early microbiome disturbance can influence long-term outcomes
• How the infant microbiome is seeded and shaped at birth
• Impacts of vaginal birth vs. C-section on microbiome development
• The practice of vaginal swabbing for C-section babies
• Key stages of microbiome development in infancy
• Differences between infant and adult microbiomes
• The breastmilk microbiome — what it is and why it matters
• Breastfeeding vs. formula feeding and the effects on microbiome diversity
• Surprising factors that can disrupt an infant’s microbiome
• How to support recovery post-antibiotic use and prevent ongoing gut disruption
• What to consider before giving probiotics or prebiotics to babies
• Dawn’s #1 piece of advice for supporting a healthy infant microbiome

Recommended Resources

Australian Breastfeeding Association

Rachel’s (she/her) details: Ready To Take Your Next Step To Support Your Gut?

Follow Rachel on Instagram HERE

Watch the FREE Masterclass 'How To Overcome Bloating and IBS Naturally & Eat Your Favourite Foods Without Fear' HERE

Check out the range of FREE gut health resources HERE

Work with Rachel HERE

Connect With Dawn (she/her)

Work with Dawn

Visit The Microbiome Restoration Centre website

Connect with Dawn on Instagram

Disclaimer: The information provided on Gutsy Talks is for education and informational purposes only. It is not provided nor intended to substitute for professional advice or care. Please seek the advice of a qualified health care professional in the event you have questions or concerns about your health.