Sulfated polysaccharides can make up a significant portion of the biomass of certain large leaf algae in the sea. More than 25 strains of Red Marine Algae (RMA) are known to contain significant amounts of sulfated polysaccharides. Difficulty lies in finding the species of RMA that are the richest sources, for the ability to support and strengthen immune response varies greatly related to the content of sulfated polysaccharides. The more, the better.
Sulfated polysaccharides are complex sugars that contain sulfur. Carrageenan and other gel-like substances are members of this family of polysaccharides. Research has isolated and identified a number of sulfated polysaccharides from sea plants that improve immune function. In addition, several RMAs of the family Gigartinaceae have been identified as the richest sources of sulfated polysaccharides. The king of them all is Gigartina skottsbergii.
Several years of study have shown that just a few species of RMA provide sulfated polysaccharides. Researchers have witnessed how these algae promote an effective cell-mediated immune response.