"Goitrogenic substances" are substances that can interfere with the normal functioning of the thyroid gland, which can lead to the development of goiter. Goiter is a condition characterized by the enlargement of the thyroid gland in the neck.
Full definition
Goitrogenic substances that block thyroid hormone are highly prevalent in soy foods as well (9).
UPDATE [3-27-16] So I want to say this right now so it's very clear and I said it above too: You can absolutely EAT crucifer veggies if you want, they are superfoods, they should be STEAMED or COOKED and that will eliminate
the goitrogenic substances.
Goitrogenic substances that block thyroid hormone are highly prevalent in soy foods as well.
Easy recipe for homemade kale chips that preserves the nutrients and reduces the potential for thyroid damage from
the goitrogenic substances in this popular leafy...
Cooking kale, brussels sprouts, broccoli, and other similar veggies, however, reduces
the goitrogenic substances that you want to avoid.
Cooking crucifers reduces
the goitrogenic substances by about 2/3.