These Sea Kelp tablets are made using the finest quality wild and uncontaminated sea kelp, a naturally rich marine source of iodine. Iodine contributes to the normal production of thyroid hormones and normal thyroid function. Iodine contributes to normal cognitive function, normal skin and normal functioning of the nervous system. NOTE: Pregnant or breast-feeding women and people with thyroid disorders should consult their doctor before taking this product. Sea Kelp tablets are not suitable for children. Our sea kelp is sourced from the West coast of Ireland. Registered with the Vegan Society