A lot of dieters stick to the mantra of no food after 5pm. Research from 1976 backs this up. The study gave two groups of people an single identical 2000kcal meal every day. However, one group had their meal at breakfast and the other had their meal at dinner.
At the end of the trial the group who had their meal at breakfast lost weight, whereas the other group gained weight. Further research has shown that there is a strong correlation between skipping breakfast and excess body fat. This reinforces the fact that breakfast is the most important meal of the day!