Spirulina is a type of cyanobacterium that has been used as food and is now cultivated in controlled systems around the world. Modern research examines its nutrients and naturally occurring compounds.
Some studies explore digestion, the gut microbiome and metabolic markers, but results depend on the population, product, dose and study design. Research on isolated compounds or animals cannot automatically be applied to people eating spirulina.
SPRU is intended as food and is not a treatment for stomach pain or digestive disease.