Drew Barrymore dishes out lunches in Nairobi, Kenya.

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In Nairobi, Drew helped dish out lunches to children in the Kibera slums. She says her reason for focusing on school feeding is simple.

"School feeding not only fills stomachs, but has a proven track record of boosting enrollment, attendance and academic performance," she says. "For just pennies a day per child, this program changes lives—and ultimately can impact the futures of poor countries around the world in a profound way."