Buy Seamoss and Bladderwrack Gel Online at the Best Prices! Sea Moss contains iron, which helps you produce more energy for your body. Iron is an essential nutrient that many plants and even humans lack. Lack of iron can cause anemia in a person and develop something called anemia. Hemoglobin is an element in our blood that carries oxygen to all parts of the body. The term “haem” means iron and “globin” means protein.