Seaweed are very important for nutrition, because they contain enormous amounts of nutrients that can’t be found in “terrestrial” nutrition. They are medicine for many diseases and ailments. But, for the time they aren’t popular foodstuff. The biggest consumers of algae are Asians, so they have title of a country with lowest rates of cancer patients, heart disease and obesity, but as time goes on and people seek for cure in food, there is no doubt that this food will become the first choice for humans. In addition to being the largest oxygen producers, they are also excellent source of proteins, minerals, vitamins, fiber and essential fatty acids, and because of their bioactive ingredients, they are considered to be functional foods. On the beginning we discuss about functional food and explaining the main difference between food and medicine. Further, are highlighted algae that can be eaten, and for each is explained how it looks like, what nutrients it contains and how it is consumed in the diet. And at the end of this paper, there are recipes for traditional Asian algae-based dishes, and how Asian people are fed.