Spirulina is a prominent product in the distribution of functional food ingredients due to its extraordinary content of nutrients, which have often led to it being included among the so-called “superfoods”. It is an excellent source of proteins, which constitute 65% of its dry weight, and fibres, which represent another 10-15%; in addition to this, it is rich in vitamins of the B and E groups, it is a source of unsaturated fatty acids such as linolenic acid, arachidonic acid, and Omega3, and has a prebiotic function that is beneficial to the intestinal bacterial flora. Finally, it also has excellent immunomodulatory and antioxidant properties.