Are Herbal Teas Toxic?
That’s a difficult question to answer, as the FDA is learning. The large majority of commercial herbal tea blends contain multiple ingredients in relatively small concentrations. These teas are quite safe to drink when used according to the product instructions. Problems arise, however, when people prepare their own herbal teas, deliberately concentrate commercial blends, have an allergic reaction to the tea ingredients, or the tea is incompatible with prescription medications.