"Continental Airlines came in second place and received high marks for offering a low-calorie and high-impact meals on flights of three hours or more," the Star Tribune adds. Continental is also rare among carriers since it still does not charge for its meals. Midwest placed third, with the survey saying the airline "takes its food seriously, and it shows." Still, DietDetective.com warns that Midwest's "famous fresh-baked on-board cookies can hurt: They're 120 calories each." Following Midwest were Delta, JetBlue, American and US Airways. Southwest and Northwest tied for last with two stars each.

As for Southwest, DietDetective.com says the carrier did not offer "much variety" nor "much in terms of nutritional value." But the group saved its most scathing remarks for Northwest. The survey cited NWA for snacks that "are very high in calories," but it also slammed the airline for not being cooperative. "It took a bit of work, but finally, after calling and e-mailing, some information was provided," DietDetetive.com says on its website. The group claims a Northwest spokesperson said: "Essentially, we don't keep track of nutritional values for our menus." DietDetective.com counters that "considering all the surveys showing that people want this information, maybe they should." Check out the DietDetective.com survey to see its finding for each airline surveyed.