Iodine is an essential trace element that is important for human health and whilst iodine is necessary for the proper functioning of the thyroid gland and overall well-being, its presence in water can be a subject of concern, especially if it exceeds certain levels. Iodine can naturally occur in water sources, primarily through the dissolution of iodine-containing minerals and rock, with different geological characteristics and levels dependant on the location and region. Iodine is a vital component of thyroid disorders, including goiter and hypothyroidism, therefore, excessive iodine intake can also be problematic and lead to thyroid dysfunction. In some cases, water treatment processes may be used to remove iodine or other contaminates from water sources to meet regulatory standards.