This Canadian Kelp (Ascophyllum nodosum) is cultivated in clean ocean water and screened for pollutants. Iodine is essential for healthy thyroid function Contains naturally sourced iodine and trace minerals from clean ocean water The thyroid controls metabolism and therefore body weight It is also important for healthy hair and nails May not be suitable for people with fish or crustacean allergy Consult your doctor if taking thyroxine or are hyperthyroid Ideal taken with Advanced Nutrition Complex multivitamin, Thyroid Support Formula and Omega 3 Fish Oil One tablet typically provides 300mg Kelp (providing 150-360µg Iodine). Tableted with with these natural ingredients Potato maltodextrin, vegetable stearic acid, silicon dioxide. Suggested intake Take 1-2 tablets a day. Please note May not be suitable for people with fish or crustacean allergy. Consult your doctor if taking thyroxine or are hyperthyroid.