In both the experimental and control groups, half of the patients were in the intensive care unit (ICU), while the other half were in a non-ICU.

Ninety-one participants were assigned to take spirulina. Some withdrew, but there were no deaths. There were 98 people in the control group, 46 of whom were in the non-ICU. Four of these died, alongside 11 ICU patients. All patients received follow-up for seven days.

The authors noticed that the spirulina group had significant reductions in inflammatory markers in their blood and higher oxygen levels.

Spirulina Significantly Reduces COVID-19 Mortality: Study | ZeroHedge