... protein, making it the world's highest known source of protein. As a vegetable protein, it is easily ... essential amino acids, making it a complete protein. Spirulina is the world's highest source of B-12 ... with high concentrations of vitamins A, B-1, B2, B-6, D, E, F, H, ... has studied spirulina says, "Spirulina is a great food! It's chock full of all the nutrients necessary to ...