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Alginate composites are promising agents for in vivo targeted delivery of cells and proteins that promote tissue healing [177] and for their anti-oxidant, and bactericidal activities [178]. Alginates can also be used as anti-hyperglycemic supplements in diets. Addition of a 5 g sodium alginate supplement to test meals led to reduced blood peak glucose and plasma insulin in type II diabetes patients [179]. Due to the porous nature and gelling ability, alginates can be used as controlled protein delivery agents [180].