From the St. Louis Post-Dispatch:

Orange juice isn't the only thing at your supermarket that's been squeezed.

Rising food prices mean grocery store chains must absorb extra costs on items like meat, seafood, and produce, or they try to pass them along to customers. But many of those consumers are unemployed or have less money to spend, even on essentials. For now, the big chains are mostly choosing to absorb. As a result, profits are falling, and so are their stocks, making them one of the few dim lights in the market in 2011.

Why supermarket stocks are getting squeezed