The Thyroid-Gut Axis: Why 20% of Hormone Conversion Depends on Microbiome Health
When people talk about thyroid hormone activation, they usually point to the liver and kidneys. But gastroenterological endocrinology shows approximately 20% of inactive thyroxine (T4) is converted into active triiodothyronine (T3) directly inside the digestive tract, through an enzyme called intestinal sulfatase. How Healthy Microbes Convert Inactive T4 The thyroid releases T4 conjugated with sulfate … Read more