Eggs just eggs

Consuming eggs in the morning can help you lose weight. They are just protein though so you should incorporate some form of carbohydrate (eg. starchy vegetables) so that you get a well rounded meal. 

A study published in the “International Journal of Obesity” in 2008 compared weight loss in individuals who consumed eggs for breakfast to those who consumed a bagel. Even though the two groups maintained an identical caloric deficit during the study, the people who ate eggs lost more weight and body fat than the bagel group.

If you currently consume a breakfast rich in carbohydrates, switching to an omelette might promote weight loss without the need for further food restriction.