Cheryl Sew Hoy, founder and CEO of Tiny Health (code: BIOHACKINGBRITTANY), unpacks the groundbreaking science behind the early-life microbiome and how parents can optimize gut health from preconception through postpartum and beyond.

We discuss why vaginal seeding, breastfeeding, and prebiotic foods matter more than you think, and how chronic conditions like eczema, allergies, and even asthma often start with gut imbalances in infancy.

We also open up about our own C-sections, breastfeeding journeys, and how our families are experimenting with gut healing—including drinking our own breast milk!

WE TALK ABOUT:

03:00 - How birth and breastfeeding influence a baby's microbiome

08:10 - Why gut testing matters before you get pregnant

11:25 - Why B. infantis is the most critical probiotic strain for babies

19:10 - Probiotics for babies (Evivo code: BIOHACKINGBRITTANY)

21:30 - What gut testing can reveal in a baby’s first year

22:50 - Allergies, eczema, asthma, and their gut health connection

25:55 - Signs your gut may be out of balance

33:15 - How Cheryl balances running a company and motherhood

36:45 - Why Cheryl chose to have a third baby at age 41 despite a busy career

41:15 - Cheryl’s current biohacking focus: EMFs and grounding

47:02 - Tiny Health vs. Viome: The difference in gut testing

SPONSORS:

Most protein goes to waste—Masszymes by BiOptimizers helps you absorb it and actually build muscle. Use the code BIOHACKINGBRITTANY to get 10% OFF.

RESOURCES:

Optimize your preconception health by joining my Baby Steps Course today!

Optimize your preconception health and fertility through my free hormone balancing, fertility boosting chocolate recipe! Download it now!

My Amazon storefront

Tiny Health website (code: BIOHACKINGBRITTANY) and Instagram

LET’S CONNECT:

Instagram, TikTok, Facebook

Shop my favorite health products

Listen on Spotify, Apple Podcasts, YouTube Music