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Weekly Health Quiz: Sleep, Spirulina and Microplastics


This is an older article that may not reflect Dr. Mercola’s current view on this topic. Use our search engine to find Dr. Mercola’s latest position on any health topic.

1 Which of the following is NOT a known health benefit of spirulina?

  • Treatment for arsenic poisoning
  • Protection against radiation
  • Fever-reducing effect

    Spirulina, a freshwater and saltwater, blue-green algae, has been used as a treatment for arsenic poisoning, and research shows it protects against radiation damage and may lower your risk of stroke and cancer. Learn more.

  • Anticancer activity


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