What is the recommended dosage for Chitosan?

Fat Binding: 1,500-3,000 mg/day before meals; Cholesterol Support: 1,000-3,000 mg/day

What are the side effects of Chitosan?

Potential side effects include: Constipation, Gas and bloating, Nausea, Allergic reactions in those with shellfish allergy (contraindicated).

What is chitosan and how may it relate to cardiovascular health?

Chitosan is a fiber derived from crustacean shells that may bind dietary fat in the intestine, reducing fat absorption. Some clinical trials suggest modest effects on total and LDL cholesterol. However, a Cochrane review found the effects small and of questionable clinical significance. It is more commonly marketed for weight loss.

What dosage of chitosan has been studied for cardiovascular outcomes?

Clinical trials have used 1–5 grams of chitosan per day, typically taken before meals. Cholesterol-related studies most commonly used 2.4–3 grams daily for 4–24 weeks. Results have been inconsistent across studies, with meta-analyses showing only small effects that may not be clinically meaningful.

What are the potential side effects of chitosan?

Common side effects include constipation, bloating, and indigestion. Chitosan may reduce absorption of fat-soluble vitamins (A, D, E, K) and medications. Individuals with shellfish allergies may react to chitosan, though the allergen is typically in the protein, not the polysaccharide. Long-term safety data is limited.

Chitosan
Chitosan

fiber

Aussi connu sous le nom de: Deacetylated Chitin, Poly-D-Glucosamine, Chitosan HCl

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About

Chitosan is a positively charged polysaccharide derived from crustacean shells that binds bile acids and dietary fat in the intestine. A 2018 Cochrane review of 14 RCTs found a statistically significant but clinically modest reduction in total cholesterol, though its practical clinical significance is debated.

How It Works

A positively charged polysaccharide that electrostatically binds negatively charged bile acids and dietary fat forming insoluble complexes excreted in feces; reduces dietary fat absorption by 1-5%; bile acid sequestration triggers hepatic LDL receptor upregulation similar to bile acid sequestrant drugs.

Evidence For Conditions

Pathologie	Note	Études	Participants
High Cholesterol (Hyperlipidemia)	C	14	1100	Voir →
High Triglycerides (Hypertriglyceridemia)	D	3	200	Voir →

Side Effects

Constipation
Gas and bloating
Nausea
Allergic reactions in those with shellfish allergy (contraindicated)

Drug & Supplement Interactions

Fat-soluble vitamins (A, D, E, K — may reduce absorption)
Oral medications (may bind and reduce absorption — separate by 2 hours)
Warfarin (may reduce vitamin K absorption, affecting INR)

Informez toujours votre professionnel de santé de tous les compléments alimentaires que vous prenez.Informez toujours votre professionnel de santé de tous les compléments que vous prenez.

Related Ingredients

Psyllium Plant Sterols/Stanols Beta-Glucan

En bref

Posologie: Fat_Binding: 1,500-3,000 mg/day before meals; Cholesterol_Support: 1,000-3,000 mg/day
Formes: capsule tablet powder
Sources naturelles: Derived from shrimp, crab, lobster shells, and squid pen
Limite supérieure: Not formally established; GI side effects at higher doses
Meilleur moment: 15-30 minutes before meals containing dietary fat

Synthèse des preuves

High Cholesterol (Hyperlipidemia) C

High Triglycerides (Hypertriglyceridemia) D

Avertissement FDA: Ces déclarations n'ont pas été évaluées par la Food and Drug Administration. Les produits et informations sur ce site ne sont pas destinés à diagnostiquer, traiter, guérir ou prévenir quelque maladie que ce soit. Les notes de preuve présentées sont basées sur notre analyse de la recherche publiée et évaluée par des pairs et ne constituent pas un avis médical. Consultez toujours votre professionnel de santé avant de commencer tout régime de compléments alimentaires.