Seaweed falls under the category of algae that are macrothallic and multicelullar. Seaweed is rich in minerals and vitamins since it absorbs them from the water where it lives most of its life. Based on pigment composition seaweed can be classified into red (Rhodophyta), brown (Phaeophyta) and green (Chlorophyta) algae. Seaweeds are usually confused with plants like Sea grasses or actual weeds. Seaweed is rich in amino acids (serine, poline, glycine, glutamic acid, aspartic acid, alanine, histidine, arginine, valine, tyrosine, phenylalanine, cysline, methionine, lysine, icoleucine, threonine, and tryptophan). Seaweed also contains vitamins A, B1, B2, B7, B12, D, E, K, Selenium, Folic Acid and Biotin. Essential nutrients such as Iodine, Zinc, Boron, Manganese, Copper, Iron, Mannitol, Laminaran, Alginic acid, Sulphur, Sodium, Magnesium, Potassium, Phosphorus, Calcium and Nitrogen are also present in seaweed.