(CHICAGO) -- Every day, children in every county in the United States wake up hungry. They go to school hungry. They go to sleep hungry.
That is one of the stunning key findings of a new study to be released Thursday by Feeding America, a network of 200 food banks and the largest hunger charity in the country.
As many as 17 million children nationwide are struggling with what is known as food insecurity. To put it another way, one in four children in the country is living without consistent access to enough nutritious food to live a healthy life, according to the study, "Map the Meal Child Food Insecurity 2011."
Those hungry children are everywhere, and with the uncertain economy, the numbers are only growing, experts say.
The consequences of malnutrition can be severe. Several studies have shown that food insecurity affects cognitive development among young children. And for older children, school performance is affected. Additional research shows that with hunger comes more frequent sickness and higher healthcare costs.
Medical research has shown that lack of nutrition can permanently alter a child's brain architecture, stunting intellectual capacity and a child's ability to learn and interact with others.
"The consequences and costs of child hunger make addressing this issue an economic and societal imperative, in addition to an obvious moral obligation," said Vicki Escarra, president and CEO of Feeding America.
Feeding America's study, funded by ConAgra Foods, is based on 2009 statistics compiled by the U.S. Department of Agriculture, which runs 15 food aid programs, including the nationwide free and subsidized school lunch program and WIC, a supplemental food program that provides tailored food supplements to pregnant women and families with children under age 5 whose household income is less than 185 percent of the gross federal poverty limit. That's an annual gross income of $41,348 for a family of four.
Copyright 2011 ABC News Radio