A dietary supplement for improving gastrointestinal functionality includes: an edible supplement comprising at least 10 mg/mL of alcohol soluble components of an animal broth. A method for preparing a dietary supplement for improving gastrointestinal functionality includes the steps of: transforming an animal broth into an active agent by adding a transforming vehicle to the animal broth, wherein the transforming vehicle is an alcohol； isolating the active agent by removing precipitates； removing the transforming vehicle from the active agent； and forming the dietary supplement, wherein the dietary supplement includes the active agent.
