Blue-green algae, chlorella, and spirulina are all advertised as being beneficial, but they could be harmful because they are often contaminated with algal toxins. The video sources, transcript, and doctor's notes are available at https://see.nf/3TqqM6p This is the third in a three-video series. If you missed the previous videos, check out "Toxins in Blue-Green Algae Like Klamath Lake AFA (Aphanizomenon flos-aquae)" at https://see.nf/3TqEoyq and "The Benefits and Dangers of Chlorella" at https://