As the economy plunges into an abyss, consumers are cutting back on spending. They’re desperately seeking bargains, including culinary ones.

While most companies deal with declining demand, McDonald’s saw its U.S. sales jump 5.3 percent in the last quarter. At the supermarket, meanwhile, sales of stuff like Spam and Dinty Moore canned stew are surging.

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But as economic crisis makes highly processed, junky food ever-more attractive, evidence of its ill health effects mounts. The latest, from Reuters:

Mice fed junk food for nine months showed signs of developing the abnormal brain tangles strongly associated with Alzheimer’s disease, a Swedish researcher said on Friday.