Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Algae, particularly certain species like Spirulina (a type of blue-green algae) and Chlorella, have been studied for their potential antiviral properties, including activity against influenza viruses. The interest in these microalgae stems from their rich content of bioactive compounds such as polysaccharides, proteins, and pigments (like phycocyanin), which have shown immune-modulating and antiviral activities in laboratory settings.

Several in vitro studies have demonstrated that extracts from Spirulina can inhibit the replication of influenza viruses. The presumed mechanisms include blocking virus entry into host cells and enhancing the body’s innate immune response. For example, calcium spirulan, a sulfated polysaccharide isolated from Spirulina platensis, has been shown to inhibit the replication of several enveloped viruses, including influenza, by interfering with viral adsorption and penetration into host cells.

Animal studies have also suggested that Spirulina supplementation can enhance the immune response and potentially reduce the severity or duration of viral infections. However, robust clinical trials in humans specifically targeting influenza are limited. The current scientific evidence, while promising, is not yet strong enough to recommend algae as a primary or standalone treatment for influenza. It may be considered as a complementary approach, mainly for immune support, rather than a direct antiviral therapy.

In summary, algae are being investigated for their potential to support the immune system and inhibit influenza viruses, but the evidence in humans remains preliminary, warranting further research.

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Products containing Algae

Nature's Sunshine Super Algae