Abstract: Calliandracalothyrsus is amultipurpose tree legume which haslong been used by farmers as forage for their animals in the tropics and subtropics. Calliandra is well known as the high proteins and tannins plant, however much of the protein is wastedbecause its tannins bind protein fibreand reducing its digestibility. Tannins at high concentrations affectvoluntary intake, nutritive value of the plant and rate of growth of animals consuming them . This review discussed the relationship betweentannin, digestibility and growth of animals. Animal production from supplementation of Calliandratolow qualitybasal diets in comparison with supplementation with low tannin forage legumes are presented and discussed.