Blue Green Algae

Blue-green algae are a type of cyanobacteria, a single-celled organism found in both fresh and saltwater. They are often harvested from natural bodies of water or cultivated in controlled environments. The algae are then processed, which can involve drying, grinding, or extracting specific compounds.

Blue-green algae are used as a source of nutrients and as a natural colorant in foods and beverages. They can impart a blue or green hue. You might find them in juices, teas, and other health-focused drinks.

In the U.S., certain forms of blue-green algae, like spirulina and chlorella, are generally recognized as safe (GRAS) by the FDA for use as food ingredients. They are a source of protein, vitamins, and minerals. International bodies like JECFA have evaluated algae-based food ingredients, but specific evaluations for all types of blue-green algae may vary. Some research suggests potential antioxidant and anti-inflammatory benefits, but more studies are needed to confirm these effects at typical dietary intakes.