One of the most important elements of marine food is iodine, which performs certain functions in the processes taking place in the body. The most valuable mineral elements that make up the living organism in their descending value are iodine, copper, calcium, phosphorus, manganese, sodium, potassium, magnesium, chlorine and sulfur. All but the first of them is iodine, which is a part of marine animals and plants, is contained in the soil. Man acts contrary to the laws of nature, cutting down forests and destroying other natural vegetation, thus creating conditions for soil erosion, leaching the most valuable mineral elements, washing out their water streams and rivers in the sea. As a result, the conditions of mineral insufficiency were gradually created, which, in turn, caused a shortage of mineral substances in feed and foodstuffs. All this, in turn, affects the human body, which replenishes mineral reserves with foodstuffs. During the last generations especially in the United Stat