Effort To Improve Diet, Exercise Of Students Results in Some Gains

In the largest study of its kind, child-health researchers in four states set out over a three-year period to see whether they could improve the health and behavior of schoolchildren by altering their diet and exercise.

This month, they reported a limited but potentially far-reaching victory: Children in the targeted schools ate better and were more active than students at schools where no such effort was made.

They found no significant decreases, however, in blood cholesterol levels or blood pressure among the students in the intervention group compared...