... : 25kgs/drum5.grade:natural,nutrition Nutritional Value1.Spirulina is rich in protein, 60-70%, also several times higher than ... Proteins are the basic elements of life-sustaining.Spirulina is rich in β carrot element, 15 times higher than the ... essential trace elements, calcium, magnesium, sodium, potassium, phosphorus, iodine, selenium, iron, copper, zinc, iron deficiency can cause anemia, zinc ...