Looking for effective food supplement to meet the demand of todayâ€™s busy society is a major concern among modern nutritionists. This study takes 25 purified cyanoprokaryotes in order to find out their nutritional status in terms of carbohydrates, lipids, proteins, vitamins, minerals etc. Results show that some species of Nostoc, Anabaena and Spirulina have good food value. These organisms are protein and carbohydrate rich with more antioxidants. Some species are rich source of vitamins. So, rice field cyanoprokaryotes can be used as a major source of nutrition to mankind in future.Keywords: Cyanoprokaryotes, antioxidants, vitamins, carbohydrates, protein.