Spirulina Algae - Biosensor Quality With High Sensitivity To Pollutants, Caution For Mercury And Heavy Metals

Our range of spirulina is sensitive to pollutants in sea water, it can be used as a biosensor to measure the toxicity of a given body of water. Unfortunately, this sensitivity means that spirulina grown in water contaminated with heavy metals can concentrate these toxic substances. Mercury levels are of particular concern. Infectious organisms may also be present and contaminate harvested algae, so reputable sources of spirulina should be used.
Phenylketonurics should avoid spirulina due to the potential content of phenylalanine.
A number of varieties of blue-green algae, including Aphanizomenon flos-quae and Anabaena, have been found to sometimes produce toxins that may affect the nervous system or the liver.
The potential side effects of spirulina are primarily gastrointestinal, and include diarrhea, nausea, and vomiting. Allergic reactions occur rarely, but can cause insomnia and anxiety.