Kelp has a salty taste and is used by many people in place of salt. It has a high content of natural plant iodine, which is absorbed into the body slowly, and therefore more safely, than chemical iodine. Iodine is necessary for proper functioning of the thyroid, which is essential for proper growth, energy and metabolism. Kelp contains calcium, potassium, magnesium, zinc and all trace minerals. It is nature's best source of natural iodine and has been used to aid the body in regulating the thyroid and pituitary glands, to help the body regulate body temperature (especially low body temperatures), and to aid in the function of the digestive and endocrine systems. It has been shown to prevent the growth of tumors, acting as an antibiotic, and contributing to the building of the cell wall. Kelp is rich in: Natural iodine, calcium, potassium, magnesium, zinc and trace minerals.