... 3.NOP,ISO,KOSHER,HALAL 4.Manufacturer 5.GMP Description:organic spirulina powder nutrition supplement1.Color: dark green.2.PH: Alkalinity3 ... .3. Spirulina contains many essential trace elements, calcium, magnesium, sodium, potassium, phosphorus, iodine, selenium, iron, copper, zinc, iron deficiency can cause ...