If you want to eat essential nutrients, there are good reasons to eat (sugar)seaweed. Sugar kelp contains minerals, vitamins, fibre and antioxidants. In particular, it is an excellent source of natural iodine. Iodine is essential for a functioning metabolism and can thus help boost energy levels. Other nutrients rich in sugar kelp are iron, magnesium, calcium, potassium, and vitamins A, C, D and K. Of these, iron is important for oxygenation of the body, and calcium and vitamin K are vital for bone health.