Who should not take bugleweed?
Long-term or high-dose use of the herb may cause an enlarged thyroid. Bugleweed should not be used by individuals with hypothyroidism (low thyroid hormone) or an enlarged thyroid gland. Pregnant or nursing women should also avoid bugleweed because of its potential effects on their children and breast milk production. However, regular intake of iodine-rich seaweeds such as kelps (laminaria/ascophyllum/fucoids) has the potential of exposure to excess iodine with possible adverse effects on thyroid function, particularly in those with pre-existing thyroid disorder, pregnant women, and neonates [37, 38].