Twelve mildly undernourished ( BMI 21.3 + / - 2.4 kg/m2 ) elderly ( 84 + / - 7.8 yr ) diseased persons were each studied under 3 conditions , in which they were given in random order at breakfast , and on consecutive days : either no supplement , a 250 kcal , 20 g protein supplement or a 250 kcal , 3.5 g protein supplement .
