MINNEAPOLIS (WCCO) – Some former top-ranked military officials say prioritizing gym class and healthier school meals are a matter of national security.

A group of retired generals from Minnesota say 69 percent of the young adults in our state cannot serve in the military due to poor health.

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Their organization, called “Mission: Readiness,” is encouraging changes so more people can enlist.

They include encouraging walking and biking, promoting fitness and academic achievement, and providing healthy school meals.

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“Walking and biking, it’s good exercise,” said retired Brig. Gen. Dennis W. Schulstad at a press conference on Thursay. “Experts are recommending that all children should have a minimum of one hour of vigorous walking or biking, or physical activity, every day.”

The group’s new mission report, titled “Too Fat, Frail and Out-of-Breath to Fight,” highlights health problems active military members face, such as respiratory problems and weak bones.

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It also applauds Minnesota for encouraging activity, expanding the state’s bike trail systems and updating nutrition standards at schools.