203 Argan Seed Saponins Have antinutritional effects but it doesn't harm ruminants and pass out with the urine. false false Cattle readily consume argan oil cake in spite of the presence of saponins that may have antinutritional effects. Noted that the greyish-green oil cake contains high amounts of saponins, which do not harm ruminants and pass out with the urine. 8,918