For years people have frowned upon and even criticized airline food. We have read complaints about it being bland, rubber-like, unhealthy and down right disgusting. Airlines have since taken initiative to serve better quality and better tasting food. Now passengers are calling for healthier food too.

It's safe to say that people care more about what they eat, so fast, greasy food is no longer going to cut it. Some airlines got the hint while others still lag behind. DietDetective.com did some digging to find out what is being served aboard 13 major carriers and how they rank on the nutritional scale.

Find out which airlines serve the healthiest food and which ones flunked by clicking here.