High consumption of cruciferous vegetables was associated with thyroid cancer among women with low iodine intake.

“there's also population evidence in countries like new calonia where iodine intake is not always robust that consumption of these cruciferous vegetables is strongly associated with increased rates of thyroid cancer as well this is common when people develop a goer hypertrophic thyroid due to iodine deficiency we do see increase rates of thyroid cancer”

“if you don't eat enough iodine in your diet and you eat too many foods that block its uptake, you end up with a goiter of varying sizes.”

“Cruciferous veggie intake does not increase the risk of hypothyroidism unless accompanied by iodine deficiency.”

“High levels of isothiocyanates from exposure to large quantities of cruciferous vegetables have not been shown to increase hypothyroidism unless accompanied by severe iodine deficiency which is actually not very common in fact countless animal studies have shown that feeding animals large quantities of isothiocyanates do not cause hypothyroidism and in fact inhibit cancer formation and prevent cancer initiation”