Spirulina (500mg x 180 Tablets @ 0.2 cent per mg)180 tablets of 500mg 100% Pure Organic Spirulina. The nutrients in 1kg of Spirulina equates to the nutrients of 1000kg of fruits and vegetables! Spirulina is a biomass of blue green algae that can be consumed by humans and animals, that has the following benefits: Enhances Energy Supplies all the daily requirements of minerals, vitamins & amino acid (with the exception of vitamin C) Spirulina contains all 8 Amino Acids (the building blocks of protein)