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What it is: Do you eat seaweed? If you said no, prepare for a surprise, because carageenan is everywhere. Extracted from seaweed, carrageenan is a gel used as a thickening agent and emulsifier (keeps food from separating.)

Where you’ll find it: May be injected into raw chicken or other meat as a way to retain water, as well as in dairy products like cottage cheese and ice cream. Chocolate milk often contains carrageenan to keep the cocoa from separating from the milk.

Gross-out factor: Low

(Getty Images)

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