Goitrogens do
block iodine uptake in the body but cooking vegetables and continuing to eat sea vegetables allow for the thyroid to have all the iodine it needs to thrive.
Things to basically
block iodine uptake to make thyroid hormone.
The video you linked discusses an enzyme
blocking iodine uptake.
Fluoride is implicated in a range of thyroid and parathyroid disorders,
it blocks iodine uptake necessary for healthy thyroid function, and is known to initiate and promote cancers.
Not exact matches
Hence the distribution of
iodine pills to local residents in Japan in order to
block any
uptake of radioactive
iodine.
Research in animals showed that this
blocking of
iodine uptake may contribute to the development of a goiter, which is the reason that cruciferous veggies are often not recommended for those with thyroid disease.
PBDEs, or polybrominated diethyl ethers, disrupt thyroid function by
blocking the
uptake of
iodine, eventually taking its place in the thyroid.
DIM is the concentrated extract of cruciferous vegetables which can act as goitrogens which basically means that they
block the
uptake of
iodine,
iodine being one of the nutrients that's required to make thyroid hormone.
-- Many suggest to avoid goitrogens (foods that can interfere with thyroid function): especially soy products as it is believed excessive consumption of soy may
block the
uptake of
iodine, an essential mineral the thyroid needs.