Carrageenan is a natural thickening and gelling agent derived from red seaweed. It is commonly used in food products, such as dairy alternatives, desserts, and processed meats, to improve texture and stability. This ingredient is considered safe for consumption by many health organizations, although some studies suggest it may cause digestive issues in certain individuals. Carrageenan is also used in non-food products, including cosmetics and pharmaceuticals, for its emulsifying properties.