Forty percent of the population in India is estimated to be vegetarian. Seaweeds with its high nutritive value constitute a potential resource of valuable supplementary food. India has a coastline of 5 698 km. Rocky and coral formations are found in Tamil Nadu, Grujarat states, and in the vicinities of Bombay, Karawar, Batnagiri, Goa, Vizhinjam, Varkala, Vishakapatnam, and in few other places like Chilka and Pulicat lakes, Andaman and Nicobar Islands. The coastal areas of Tamil Nadu and Grujarat states are the important seaweed growing regions of the country.