Iodine

An essential trace mineral the body uses to make thyroid hormones — and the thyroid uses it for almost everything else. Both deficiency and excess cause thyroid problems, which makes iodine one of the...

• Essential Building Block For Thyroid Hormones, Which Regulate Metabolism, Growth, And Energy
• Critical During Pregnancy For Fetal Brain Development — Deficiency In Pregnancy Causes Preventable Cognitive Impairment
• Iodized Salt Has Nearly Eliminated Severe Iodine Deficiency In Countries That Adopted It
• Found Naturally In Seaweed, Fish, Dairy, And Eggs

Note Both too little and too much iodine cause thyroid problems — there is a narrow optimal range Note Excess intake can trigger thyroid dysfunction in susceptible people, including autoimmune thyroiditis