Can people with shellfish allergies consume chitin?

Individuals with shellfish allergies should avoid chitin derived from crustaceans, as it can trigger allergic reactions.

Is Chitin Vegetarian?

Caution

Chitin is found in both animals and plants. It is often derived from lobster claws or other crustacean shells.

Chitin and the Vegetarian Diet

Chitin is a long-chain polymer of N-acetylglucosamine, a derivative of glucose, and is a primary component of the exoskeletons of crustaceans and insects. It is also found in the cell walls of fungi and certain algae. Chitin is structurally similar to cellulose, which is found in plants, and is used in various applications including biodegradable films, dietary supplements, and as a food thickener.

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