Click to expand Tap to zoom Prairie Naturals Spirulina by Prairie Naturals Sale $36.99 200g / Prairie Naturals - $36.99 Size (servings) 200g Brand Prairie Naturals 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Organic Spirulina (Spirulina platensis) is one of the most ancient green superfood plants on earth. Spirulina is a rich source of carotenoids, phycocyanin (blue pigments), chlorophyll (green pigment), iron and plant-based (or complete) protein.