Carrageenan
Type: Excipient
Carrageenan is derived from red seaweed, a FDA-approved additive to thicken foods and drinks, such as jam, ice cream and salad dressing.
It is also used to stop milk from separating (emulsify). For some low or non-fat products, carrageenan is used as a replacement to provide the similar mouthfeel.
To make carrageenan, the seaweed is boiled in a non-acidic broth, filtered, and milled into powder.