Calories underestimated in 'healthy' restaurants

People who opt for a meal at a "healthy"restaurant often consume more calories than they would dining at fast food joints that make no health claims, a new study shows.

The researchers found that individuals underestimate the calorie content of foods served at restaurants they see as healthier, to a degree that could easily lead to weight gain.

For example, "People think that the same 1,000-calorie meal has 159 fewer calories if it comes from Subway than if it comes from McDonalds,"Dr. Pierre Chandon, at INSEAD in Fontainebleau, France, told Reuters Health.