Chitosan

Caution

Dietary Fiber

Chitosan is a natural fiber derived from crustacean shells, commonly used in weight loss supplements as a lipid binder.

What is Chitosan?

Chitosan is a polysaccharide obtained from the shells of crustaceans such as shrimp, crabs, and lobsters. It is used primarily for its ability to bind lipids and fats, which has made it popular in weight management and cholesterol-lowering supplements. In addition to its applications in dietary products, chitosan is also used in agriculture, medicine, and cosmetics for its biodegradable and non-toxic properties.

Also known as:

Poly-D-glucosamine

Unsure about an ingredient? Scan it instantly.

Try Spoonful

Diet Compatibility

VeganCaution

Chitosan is a fiber found in crustacean shells. It is often used as a lipid binder in diet products.

Learn more →
VegetarianCaution

Chitosan is a fiber found in crustacean shells. It is often used as a lipid binder in diet products.

Learn more →
Alpha-Gal FriendlySafe

This ingredient is generally considered compatible with a Alphagal diet.

Learn more →
Dairy FreeSafe

This ingredient is generally considered compatible with a Dairy Free diet.

Learn more →
Gluten FreeSafe

This ingredient is generally considered compatible with a Gluten Free diet.

Learn more →
Low FODMAPSafe

This ingredient is generally considered compatible with a Fodmap diet.

Learn more →

Compatibility ratings are general guidelines and may vary by individual. Always consult a healthcare professional for personalized dietary advice.

Why People Avoid Chitosan

People avoid chitosan primarily due to dietary restrictions, particularly vegans and vegetarians, as it is derived from animal sources. Additionally, individuals with shellfish allergies should avoid chitosan due to its origin from crustacean shells, which may trigger allergic reactions. Ethical concerns regarding the harvesting of marine life also contribute to avoidance by some consumers.

Potential Reactions

  • Allergic reactions in individuals with shellfish allergies

This information is for educational purposes only and should not be considered medical advice. Individual reactions can vary. Consult a healthcare professional if you have concerns about specific ingredients.

Spoonful flags ingredients that don't match your diet.

Get the App

Foods That Commonly Contain Chitosan

Weight loss supplements
Cholesterol-lowering supplements

Browse products that match your diet.

Explore Products

Frequently Asked Questions

Your Personal Ingredient Scanner

Spoonful helps thousands of people with dietary restrictions shop safely. Scan barcodes, read labels, and find safe alternatives — all in one app.

Download on the App StoreGet it on Google Play
Spoonful app scanning a food product

Take the Guesswork Out of Grocery Shopping

Join thousands who use Spoonful to find foods that match their dietary needs.

Download on the App StoreGet it on Google Play