Surprise, surprise…. Fast food restaurants might be lying to your face.

According to the Los Angeles Times health blog, Booster Shots:

Researchers from Tufts University took commercially prepared foods — both prepackaged and from restaurants — and analyzed them in a bomb calorimeter. The measured energy values of 10 frozen meals purchased from supermarkets averaged 8% more than originally stated, and foods from 29 restaurants (both fast-food and sit-down venues) were on average 18% more than reported.

The most egregious offender? Denny’s, whose dry toast is advertised to contain 92 calories but actually packs a diet-busting 283 calories! If they can’t even get the numbers on toast right, just imagine the true caloric content of one of their Grand Slamwiches.

So if your New Year’s resolution includes getting back in shape, help yourself out by resolving to stop eating fast food and frozen meals all together.

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Image: flickr / fotographix.ca