Vitamin A may be involved in absorption of iodine and thyroid hormone!

Updated March 10, 2022

While this article is about breast cancer, the iodine transport mechanism is the same throughout the body and suggests that vitamin A (retinoic acid) facilitates iodine absorption. While we know that vitamin A is also needed for thyroid processing, that connection is unclear but might be related to this as well.

Retinoic acid induces sodium=iodide symporter gene expression..2000

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