PhysioLogics Chitosan Natural Marine Fiber 500 mg

Our assessment

The evidence shows that PhysioLogics Chitosan Natural Marine Fiber 500 mg is a product for which very limited specific data is available. Our assessment is based on the supplement’s listed ingredient, Chitosan, which is a fiber derived from marine sources. However, no specific NIH ODS or FDA data was provided for Chitosan itself, so the core health claims for this product cannot be verified from the supplied information. Data not available for the primary ingredient's mechanism or clinical studies.

How it works

While you might be interested in how this fiber supplement could support weight management or cholesterol levels, the provided data does not include information on Chitosan’s mechanism of action. Data not available for Chitosan's mechanism. For comparison, the data does include information on a different ingredient, Calcium, which works through bone mineralization and neuromuscular relaxation, but this is not relevant to the Chitosan product you are asking about [NIH ODS].

Safety profile

The FDA has received a total of 592,059 adverse event reports across all supplements, but no specific report count is provided for Chitosan or this specific product [FDA data]. Data not available for side effects specific to PhysioLogics Chitosan. It is important to note that the data for Calcium—a different ingredient—indicates that high intakes can cause constipation, nausea, weight loss, and abnormal heart rhythms, but these findings do not apply to Chitosan [NIH ODS].

Our recommendation

Without specific data on Chitosan's efficacy, safety, or studies from the provided list, we cannot make a confident recommendation for PhysioLogics Chitosan Natural Marine Fiber 500 mg. The data provided does not include any studies from journals or years for this ingredient. If you are considering this supplement for weight loss or cholesterol reduction, we advise you to consult with your healthcare provider, as the evidence base for this product is not available from the information supplied. Data not available to support a recommendation.

Supplement labels contain several key sections regulated by the FDA:

• Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
• Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
• % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
• Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
• Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.

Source: FDA Dietary Supplement Labeling Guide