Carrageenan Gum What is Carrageenan Gum? Carrageenan gum is a naturally-occurred family of marine polysaccharide obtained from seaweed. They are considered water-soluble dietary fibers. Carrageenans are an excellent alternative to animal-based thickeners such as gelatin. They are used in foods such as baked goods, frozen dough, ice cream, yogurt, cheese or soy [...]