The Bay Area's hidden hungry are the Hayward delivery driver and homemaker who rely on the food bank to feed their family of five. They are the seniors struggling to get enough to eat in East Palo Alto, just 2 miles from Facebook headquarters and its free employee meals. They are the diabetics showing up in emergency rooms in Oakland with low blood sugar at the end of the month because they ran out of food. They are the undocumented families sharing tiny apartments in the South Bay, cooking beans on camp stoves in their bedrooms. More than 1 of every 10 people in the Bay Area today are hungry. But they are not only the visibly famished, digging through the trash in Union Square for the remains of someone's lunch.