Certain supplements can affect thyroid medication absorption. For instance, calcium and iron supplements are known to interfere. It’s wise to consult your doctor before starting new supplements, especially if you take thyroid medication. Also, be cautious with high-iodine supplements, as excessive iodine intake can disrupt thyroid function. Additionally, soy and its derivatives, like soy isoflavones, may hinder thyroid medication absorption.

Avoid taking magnesium, biotin, and fiber supplements around the same time as thyroid medication, as they might affect absorption. Thyroid glandular supplements, caffeine, acid blockers, and estrogen-enhancing supplements should also be used cautiously, as they can interact with thyroid function.

Maintain open communication with your healthcare provider to ensure your supplement choices align with your thyroid health and medication plan.

You can find more information here: Supplements and Vitamins That Will Help your Hypothyroidism