These tablets are made using finest quality wild sea kelp, a naturally rich marine source of iodine. Iodine is an essential constituent of thyroid hormones which help control the metabolic rate of the body. Calcium is an essential mineral necessary for the maintenance of healthy bones and teeth, normal muscle function and normal blood clotting. NOTE: Not recommended for use during pregnancy or when breast feeding. CONTAINS NO added sugar, salt, starch, sucrose, gluten, live yeast, synthetic flavours, artificial colours or preservatives. Registered with the Vegan Society Each tablet typically provides: Calcium 68mg Iodine 245mcg Powdered Sea Kelp 400mg Pregnant women and people with thyroid disorders should not take this product. Kelp is not suitable for children.