What are spirulina's health benefits?

Andrew Huberman discusses spirulina's health benefits, particularly its potential to alleviate symptoms of nasal congestion and rhinitis. Spirulina is a form of algae that has been shown to possess anti-inflammatory properties. Studies indicate that spirulina can significantly reduce nasal obstruction and improve the ability to smell, sleep quality, and reduce inflammatory cytokines and nasal itching. These effects are achieved by inhibiting the activity of histaminergic mast cells, which play a pivotal role in allergic reactions 1.