The salty sea is home to prolific algae that naturally contain trace minerals, including iodine. This critical trace mineral supports glandular function and helps support metabolism and energy. Eating “sea vegetables” is not a new idea--the ancient Greeks and Romans ate kelp as a food source. According to records in China, people have been eating various types of kelp there for more than 2,000 years! This formula features two North Atlantic kelp species. Oarweed (Luminaria digitata) grows primarily along the coasts of the United Kingdom, Iceland, France and parts of New England. This dark brown kelp is harvested on rocky shores during spring tides and grows up to 7 feet long. Knotted wrack (Ascophyllum nodosum) is a brown seaweed with small strap-like fronds and egg-shaped air bladders that help it float.