Lab experiments suggest that ulvan, an extract from a type of algae.common in diets in places like Japan, New Zealand, and Hawaii, may help fight COVID-19.
That said, it’s possible that the process used to extract ulvan from seaweed may impact its antiviral properties. Investigators compared two extraction methods and found one of them resulted in ulvan with more than 10 times the virus-fighting power. This suggests that more research is needed to refine the best method to develop ulvan with the best antiviral properties, the researchers point out.
And even if the seaweed extract proves effective in more lab tests, it would still need to be tested in animals and humans. But should it prove effective in human trials, seaweed extract has the potential to help prevent COVID infection in people who can’t easily afford or accessPeerJ : “Fighting SARS-CoV-2 with green seaweed Ulva sp. extract: extraction protocol predetermines crude ulvan extract anti-SARS-CoV-2 inhibition properties in in vitro Vero-E6 cells assay.”
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