Objective. Previous studies have shown increased stool output when chi
ldren with persistent diarrhea (PD) received milk as the predominant s
ource of nutrition. Methods. We evaluated the efficacy of milk given i
n modest amounts as a part of a mixed diet in children with PD. One hu
ndred sixteen children 3 to 24 months of age with diarrhea for between
14 days and 12 weeks were allocated to milli-based (n = 60) or milk-f
ree (n = 56) cereal dietary regimens. The two diets were isocaloric (8
6.9 calories/100 g for less than or equal to 9 months; 95.6 cal/100 g
for >9 months) consisting of puffed rice cereal, sugar, and oil differ
ing in only their source of protein, which was either milk or egg whit
e, respectively. An average of 30% of the calories were constituted by
milk in the milk-cereal diet, Both diets were offered at the rate of
150 kcal/kg per day. Children receiving milk-cereal consumed an averag
e of 1.9 g/kg lactose per day.Results. The baseline characteristics in
the two groups were similar. Comparable amounts of diet were consumed
in both groups. The milk-cereal group did not have higher median (ran
ge) stool output (g/kg/h) compared with the milk-free group during a 0
- to 48-hour (milk-cereal, 1.7 [0.2 to 8.7]; milk-free, 1.5 [0.1 to 6.
6]) or 0- to 120-hour (milk-cereal, 1.6 [0.4 to 7.2]; milk-free, 1.3 [
0.1 to 7.6]) period. The percentage of weight gain was similar in the
two groups, and there were no significant differences in the duration
of diarrhea. Overall, 23 children had treatment failures, 10 (17%) in
the milk-cereal and 13 (23.6%) in the milk-free groups. Conclusions. O
ur findings suggest that modest intakes of milk are well tolerated as
a part of mixed diet during PD.