... thiamine (B1), riboflavin (B2), nicotinamide (B3), pyridoxine (B6), folic acid (B9), vitamin B12, vitamin C, vitamin D, and vitamin E ... body functioning at full strength.Most cultivated spirulina is produced in open-channel raceway ponds, with paddle-wheels used to ... the water. the largest commercial producers of spirulina are located in the united states, thailand, india, taiwan, china, pakistan ...