Chimax® (Chitosan)

Chimax® is a chitosan, a fiber-like compound derived from the shells of shellfish. Chitosan carries a positive charge that lets it bind dietary fat and bile in the gut, and it is studied for supporting modest weight management and healthy cholesterol.

Chimax is researched primarily for Weight Management and Cardiovascular. A meta-analysis of randomized trials found chitosan supplementation supported modest reductions in body weight and body composition.

The clinically studied dose is Commonly 1 to 3 grams per day with meals. Always follow the product label and check with a healthcare provider for personal advice.

For most healthy adults, Chimax is well tolerated at studied doses. Reported effects can include: Generally well-tolerated — digestive symptoms are most common. Mild constipation, gas, or nausea can occur. It may also interact with some medications. Chimax is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Possible interactions include: May reduce absorption of fat-soluble vitamins (A, D, E, K); separate dosing. Take medications at least 2 hours apart from chitosan. If you take prescription medication, check with a pharmacist or doctor before using it.

NutraSmarts rates the evidence for Chimax as Limited (2 out of 5). It is backed by 1 clinical trial and 1 cited reference summarized on this page. A higher rating reflects more, larger, and better-designed human studies.