Participants receive their treatment of crystalline glucosamine sulfate at a total dose of 1500 mg of glucosamine sulfate. Treatments are consumed with a glass of water followed by a standardized breakfast (diet-controlled condition). Capillary whole blood samples are collected at different time points up to 24 hours post-dose. A washout period of 1 week between each treatment is used.

Participants receive their treatment of regular glucosamine sulfate at a total dose of 1500 mg of glucosamine sulfate. Treatments are consumed with a glass of water followed by a standardized breakfast (diet-controlled condition). Capillary whole blood samples are collected at different time points up to 24 hours post-dose. A washout period of 1 week between each treatment is used.

A maximum single dose of 1500mg of glucosamine sulfate in a caplet.

To determine the gastrointestinal absorption of orally ingested glucosamine sulfate in healthy adult volunteers and compare the Area under the plasma concentration versus time curve (AUC) with that of other capsules containing glucosamine sulfate.

To determine the gastrointestinal absorption of orally ingested glucosamine sulfate in healthy adult volunteers and compare the peak plasma concentration (Cmax) with that of other capsules containing glucosamine sulfate.

To determine the gastrointestinal absorption of orally ingested glucosamine sulfate in healthy adult volunteers and compare the time point of maximum plasma concentration (Tmax) with that of other capsules containing glucosamine sulfate.