Together use 100% sustainable wild harvested ascophyllum seaweed from the UK to make their all natural organic iodine supplement. The seaweed is also naturally rich in all the minerals and micronutrients needed for the proper transport and metabolism of iodine including selenium, tyrosine, zinc, copper, vitamins A, B2, B3, B6 and C making this supplement a highly bioavailable source. Each batch is certified organic and lab-tested for heavy metals, microbiology, pesticides and iodine content to ensure maximum purity and consistency. Iodine contributes to normal thyroid, nervous system and cognitive function, normal energy-yielding metabolism, and the maintenance of normal skin Iodine deficiency even in Britain may be more widespread than is currently realised because over-used soils and new artificial growing mediums may be deficient in the micronutrients like iodine. Thousands of people in Britain and elsewhere, suffer from hypo- (underactive) or hyper- (overactive) thyroid, both of which require a proper nutritional balance.