Is it true that lack of iodine causes brain damage...

It is particularly important that pregnant women receive enough iodine in their diet, as iodine is a key nutrient in the fetal development process, especially with respect to the brain. Iodine deficiency during pregnancy not only results in brain damage to the fetus, but also in low birth weight, prematurity and increased perinatal and infant mortality.

由于碘是胎儿发育过程、尤其是脑发育过程的主要营养素，特别重要的是孕妇在其饮食中获得足够的碘。 妊娠期缺碘不仅导致胎儿脑损伤，而且导致低出生体重、早产以及围产期和婴儿死亡率增加。

Young children are also particularly at risk because the brain still needs iodine for its development during the first two years of life. In addition, iodine deficiency in children is responsible for disorders in physical and cognitive development, and hypothyroidism.