A composition comprising protein hydrolysates derived from milk is obtained by the treatment of enzymes derived from microorganisms. A trypsin-like enzyme and a chemotrypsin-like enzyme are used. The composition is in particular intended for inducing tolerance in infants with the effect of modulating the potential occurrence of allergies later in life. The composition can also be used in sick adult patients. Preferably the composition is an infant formula, infant follow-up formula, growing-up milk or baby food or an enteral complete nutritional composition.本發明係關於一種包含由牛奶獲得之蛋白質水解物的組合物,其係藉由使用源於微生物之酶處理而得到。本發明使用胰蛋白酶樣酶及胰凝乳蛋白酶樣酶。該組合物尤其意欲用於在嬰兒中誘導耐受性,其作用為調節今後生命中潛在發生之過敏。該組合物亦可用於患病成年患者。較佳地,該組合物為嬰兒配方、較大嬰兒配方(infant follow-up formula)、成長奶品或嬰孩食物或經腸式完全營養組合物。