18. Spirulina
Spirulina, which is a type of algae, is probably the strangest item on this list. Most people ingest it as a supplement, but some health food stores offer it in a powdered form, which can be added to everyday foods like smoothies and cereal.
Spirulina contains a chemical that helps complete amino acid chains and regulates lipid levels in the blood, all of which promote general health and cell repair. Spirulina also contains fatty acids that have been known to reduce artery damage.
