Carrageenans are polysacharrides created from edible seaweeds and used in food products where they provide gelling, thickening, and stabilizing effects. It has multiple uses.
There have been concerns that it can cause inflammatory gut conditions, such as ulcerative colitis or colon cancer.There is no formal evidence that this occurs.
It is considered to be GRAS (generally recognized as safe). Certainly there is no reason to add this to your diet, but certainly avoid it if possible. Either was, it still has not been shown to be unsafe.
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