If hypothyroidism is caused by insufficient iodine intake, an iodine supplement is indicated. Hypothyroidism has been found to occur concurrently with deficiencies in vitamin D, selenium, magnesium, iron, zinc, and vitamin B12, however, it is unclear if supplementation will improve symptoms of hypothyroidism. Black seed has also been studied for hypothyroidism [1], while Ashwagandha has been studied for subclinical hypothyroidism.[2][3]
Have any supplements been studied for hypothyroidism?
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•Last Updated: May 16, 2025
Iodine supplements are indicated if hypothyroidism is due to insufficient iodine intake. Although deficiencies in several nutrients have been associated with hypothyroidism, the effectiveness of supplementation for improving symptoms is unclear.