02/02/2026
Your gut and thyroid are in constant conversation.
If you’re struggling with thyroid symptoms - but your labs are “normal” - your gut may be holding the missing pieces.
Here’s how they’re connected 👇
💩 Constipation slows thyroid hormone clearance.
Low thyroid → slower motility → sluggish detox → recycled hormones and increased symptoms.
🦠 Dysbiosis impacts T4 to T3 conversion.
Imbalances in your microbiome can reduce the conversion of inactive thyroid hormone (T4) into the active form (T3) your cells actually use.
🍳 Nutrient absorption matters.
Thyroid function depends on nutrients like selenium, zinc, iron, and B vitamins — all absorbed in the gut. Inflammation or leaky gut = poor uptake.
🧬 Celiac screening is often missed.
Autoimmune thyroid conditions like Hashimoto’s are more common in those with celiac disease. If you have antibodies or symptoms, screening matters — even without digestive issues.
If your thyroid plan doesn’t address your gut…
…it’s probably not getting to the root.
Schedule a discovery call to learn more about our approach!
https://radiancefunctionalmedicine.com/contact/