This makes me want to avoid carrageenan as much as I can, from 1st post:
The Joint Expert Committee (Food and Agriculture Organization of the UN and the WHO) on Food Additives has recommended that carrageenan be excluded from infant formula and that current intake of carrageenan in the diet be re-evaluated [5]. The implications for human disease may be profound, since carrageenan is consumed in significant quantity in the human diet.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3495619/