Bioconcepts kelp 500mg contains kelp that is the richest natural source of iodine iodine is a trace mineral that is vital for the healthy functioning of the thyroid gland and for the production of thyroid hormones also a diet rich in iodine could help to regulate the metabolism and in turn affect weight management what is kelp kelp is a term used to describe a whole family of mid sized seaweed species and is one of the natures great sources of nutrients it thrives in mineral rich shallo