Does diet makes you angry and stressed?

The idea of reaching a stick of celery when all really want is a large slice of chocolate cake, probably would make most people a bit grumpy.
And, according to the results published in the Journal of Consumer Research, exercise self-control, while diet can in fact that people feel angry and irritable.

Research has shown that exercise self-control makes most likely people to behave aggressively towards others, and people on diets are known to be irritable and quick anger. Source

Researchers establish four experiments to compare the attitudes of the volunteers who were on a diet, with those who ate what they wanted. They found that:
Participants who choose an Apple on a bar of chocolate were more likely to choose movies had plots angry, full of revenge. Those who choose a gift certificate for food rather than one for a spa service, showed more interest in looking at angry faces against the more fearful.And, in another experiment, people who chose a healthy snack rather than a health irritated by a public service announcement, promote the year.
Interestingly, researchers have linked to these feelings of anger, irritation and stress to the Act of self-control while exercising diet, rather than "diet" Yes.
The researchers point out that more aware of the potential negative emotions, which can result when the public are encouraged to exercise more control auto on its daily decisions makers of public policy.
Why does you - be on a diet that sits more irritated or angry? As the options of food are it heals without feeling as he is being denied to you same?
Image source: Kreutziana