Carrageenan is also found in jelly, pie filling, chocolate, salad dressing, and even as a fat substitute in processed meat. Because it comes from algae, it can be used as a substitute for gelatin for vegetarian and vegan products.
http://www.wisegeek.org/what-is-carrageenan.htm
Despite an unfamiliar name, carrageenan is actually harvested from a natural source. Seaweed is often praised for its many health and wellness benefits, and it is also where the super-useful ingredient carrageenan is found.
http://www.foodsciencematters.com/carrageenan/
Carrageenan Uses in Food and Personal Care Products[1] There are two types of carrageenan, which differ due to the manufacturing process used to extract the compound from seaweed. One is called refined carrageenan E407, and the other is lesser-refined carrageenan E407a, also known as PES (Processed Eucheuma Seaweed).
http://unblindmymind.org/2014/02/carrageenan-and-the-glutamate-connection/
Carrageenan gets its name from seaweed that grows along the coast of Ireland near a village named Carragheen. 1  But, most of the carrageenan used in food processing comes from Indonesia, Vietnam, the Philippines, and other Pacific Islands. It's classified as GRAS by the United States Food and Drug Administration, which approved it's use back in 1961. GRAS stands for generally recognized as safe..
https://www.verywell.com/what-is-carrageenan-2506721
Carrageenan is a polysaccharide (complex sugar) extracted from seaweed. It is added to food as a gelling agent and stabilizer.
http://unblindmymind.org/2014/02/carrageenan-and-the-glutamate-connection/
Animal studies. Most of the carrageenan hysteria stems from animal studies that implicate carrageenan in the formation of ulcerations and cancerous lesions in the colon. A thorough review of the approximately 45 available animal studies on carrageenan was published in 2001, and at first glance, these studies seem alarming.
https://chriskresser.com/harmful-or-harmless-carrageenan/
Because poligeenan can be produced from carrageenan, many researchers and laypeople have expressed concern that we might be exposed to poligeenan through contamination of the food supply. However, the most recent sources indicate that the poligeenan contamination level of food-grade carrageenan is less than 5%.
https://chriskresser.com/harmful-or-harmless-carrageenan/
Traditionally, the species of algae used to produce carrageenan was Irish moss or Chondrus crispus. In modern times, the kappa class is mostly produced from the Eucheuma cottonii species, while iota comes from Eucheuma denticulatum and lambda from species in the Gigartina genus.
http://www.wisegeek.org/what-is-carrageenan.htm
What is it? Carrageenan is a food ingredient that has a whole host of uses; it can be used as a vegan alternative to gelatin in setting desserts, it retains moisture in various kinds of cooked meats, and it suspends the chocolate in chocolate milk preventing it from separating.
http://www.foodsciencematters.com/carrageenan/
Carrageenan is a product derived from certain types of red algae, a seaweed found throughout the coasts of North America and Europe. The product is most often used as a thickening agent in place of animal-based products like gelatin, which is extracted from animal bones.
http://www.wisegeek.org/what-is-carrageenan.htm
where does carrageenan come from
Carrageenan comes from algae. Carrageenan comes from algae. 