Imagine if your breast cancer prevention plan is missing the organ that sets the speed for cell growth & regulates apoptosis, powers immune energy, and helps with estrogen clearance. That’s the thyroid—quietly directing the processes that keep breast tissue healthy or tip it toward risk.
In today's episode we sit down with registered dietitian and functional endocrinology expert Lauren Papanos from Functional Fueling to connect the dots between thyroid hormones, breast health, and the oxidative stress that drives DNA damage when thyroid is too low or too high.
We break down why thyroid hormones matter far beyond “metabolism,” how iodine acts as both a building block and a local protector in breast tissue, and why sequencing is everything: replenish antioxidants first, restore mineral balance, then fine-tune iodine.
You’ll learn practical food strategies—like where to find iodine-rich foods, how to time crucifers so they don’t block iodine when stores are low, & how to enhance bile flow as a hidden lever for T4-to-T3 conversion and estrogen clearance.
Most importantly, we move past TSH-only testing. Lauren's go-to panel includes TSH; total and free T4; total and free T3; reverse T3; and thyroid antibodies (TPO, TG), with functional ranges that flag issues early:
- T4 <1.2 is a flag
- T3 <3 is a flag (<2.3 can cause breast changes)
- TSH >2 is a flag
We wrap with the foundations of where to start: eat enough, sleep well, right-size exercise, lower exposures, and even testing after big hormonal shifts like postpartum, perimenopause, menopause, or starting HRT.
If you’re ready to turn prevention goals into daily practice, press play, take notes, and share this with someone who still thinks “normal TSH” tells the whole story. Subscribe, leave a review, and tell us which thyroid lab you’ll request next.
✨ Dive Deeper with Lauren ✨
- Thyroid Inflammation Lab Decoder Guide
- Functional Thyroid Foundations
- Lauren's 1:1 Program
AND If this conversation inspires you to get more clarity when it comes to reducing your risks for breast cancer... ⬇️
👉 Then I invite you to grab our on-demand workshop: Cracking The Code on Breast Cancer. Learn more here: https://groundandroot.com/breastcancerworkshop
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