The present invention relates to methods and compositions for reducing L-pipecolic acid concentrations and/or effects in animals. In an embodiment, the invention includes a method of reducing plasma concentrations of L-pipecolic acid in animals including administering an effective amount of a composition including saponins. In an embodiment, the invention includes a method of reducing anorectic effects of L-pipecolic acid in animals including administering an effective amount of a composition including saponins. Other embodiments are also included herein.