Carrageenan E407 Side Effects

Carrageenan E407 Side effects

Carrageenan controversy

Although Carrageenan is approved safe to use by FDA, some scientists have presented evidence that carrageenan is highly inflammatory and toxic to the digestive tract, and claim that it may be responsible for colitis, IBS, rheumatoid arthritis, and even colon cancer.


There are two forms of carrageenan: food grade and degraded. Food grade carrageenan has been used for hundreds of years and has been extensively reviewed and approved for use in foods. Degraded carrageenan was found to be harmful, but is not used in foods, as it does not provide any thickening properties. Even though degraded carrageenan and food-grade carrageenan are different, the harmful effects of carrageenan in its degraded form have been mistakenly associated with food-grade carrageenan.

FDA states that “While no evidence in the available information on undegraded carrageenan demonstrates a hazard to the public when it is used at levels that are now current and in the manner now practiced, uncertainties exist requiring that additional studies should be conducted.”

Carrageenan is safe for pregnancy?

Carrageenan, in amounts typically found in foods, is safe to use during pregnancy and breastfeeding, but not enough studies have been done to evaluate its safety in larger amounts.

Carrageenan health risks

Carrageenan health risks may as follows:



irritable bowel syndrome

glucose intolerance

colon cancer

food allergies

How much Carrageenan is safe?

Food grade carrageenan has been independently evaluated by the Joint FAO*/WHO* Expert Committee on Food Additives (JECFA), an international panel of expert toxicologists who review data and develop recommendations about food ingredients. JECFA determined that food grade carrageenan was a safe food additive with no limits on its use in food.