The economic instability in the country is just the latest challenge to hit food banks, after they have had to adapt to changes in Americans’ eating habits coupled with decreasing supply and increasing costs for their operations, reports The Wall Street Journal.

While several companies this week announced major efforts to step up their help to antihunger charities, that still may not be enough to rescue the food banks from the conditions they face, the newspaper reports. The chief executive at Feeding America, formerly known as Second Harvest, says she expects the situation “will get worse before it gets better.”

Feeding America, which represents many of the nation’s food banks, estimates that demand has risen about 25 percent over past year, including a wave of first-time clients.