How Cow's Milk Can Hinder Absorption of Thyroid Medication

Levothyroxine is commonly prescribed to replace the natural thyroid hormone thyroxine (T4) that is too low in hypothyroidism where there is the under-activity of the thyroid gland or for patients with thyroid cancer, to suppress their thyroid stimulating hormone levels. In hypothyroidism, the activity of thyroid gland is decreased and the level of thyroxine hormone in the blood is reduced.