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Issue 3, 2018

Revisiting the carrageenan controversy: do we really understand the digestive fate and safety of carrageenan in our foods?

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Abstract

Carrageenan (CGN), a family of marine polysaccharides isolated from seaweeds, has been at the heart of considerable debate in recent years. To date, CGN is generally recognized as safe based on a history of safe use, various acute toxicology studies and some recent chronic toxicology tests. This review offers readers an overview of evidence on CGN characteristics and digestive fate that highlight various gaps in our understanding. Specifically, three unresolved gaps are identified. Firstly, little information can be found on the current levels of public exposure to CGN. Secondly, the link between CGN physicochemical properties, its impact on digestive proteolysis, the colon microbiome and inflammation are yet to be fully resolved. Thirdly, scant scientific evidence exists on the differential digestive fate of CGN in the gut of liable and predisposed populations, such as elderly people or IBD patients. Altogether, revisiting the scientific evidence indicates that more research is needed to elucidate the possibility that continued exposure to increasing levels of CGN in the human diet may compromise human health and well-being.

Graphical abstract: Revisiting the carrageenan controversy: do we really understand the digestive fate and safety of carrageenan in our foods?

Associated articles

Article information


Submitted
01 Nov 2017
Accepted
07 Feb 2018
First published
07 Feb 2018

Food Funct., 2018,9, 1344-1352
Article type
Review Article

Revisiting the carrageenan controversy: do we really understand the digestive fate and safety of carrageenan in our foods?

S. David, C. Shani Levi, L. Fahoum, Y. Ungar, E. G. Meyron-Holtz, A. Shpigelman and U. Lesmes, Food Funct., 2018, 9, 1344 DOI: 10.1039/C7FO01721A

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