Spirulina has many proven health benefits, but sometimes spirulina can be dangerous. Always choose spirulina from well-established manufacturers to avoid a potential threat to your health.
Like many products from China, cheap spirulina which comes from unknown sources is low quality or even hazardous. Over the past few years Chinese supplements, including spirulina, have been found to contain many dangerous substances. This brings sometimes even life-threatening side effects to consumers.
Spirulina’s quality and safety are directly related to the environment. It is so, because spirulina can absorb toxins and heavy metals from the environment in which it grows. That’s why it is very important to buy spirulina which grows in pollution free environment.
Not only Chinese spirulina is dangerous. After Fukushima accident in 2011, there is a high risk of radiation in Japanese spirulina.
How to avoid polluted spirulina? First of all, buy spirulina only from well-established companies. If in doubt, you can always ask for certificates. If spirulina is free of heavy metals and toxins, manufacturer or seller would give necessary documentation without any problem.
Below some examples of what can be found in spirulina: