People take the first step of vowing to eat well, but the problem after that is that they don't learn from their mistakes and within a month or so, they return to their poor eating habits. Here are seven of the most common diet mistakes. Not eating enough protein during breakfast You decide to eat healthily and choose a bowl of cereal with non-fat milk and a banana. An hour later, you start complaining of hunger pangs. The protein from milk is not going to keep you full until lunchtime.

So, add a healthy fat to the cereal mix, like slivered almonds, or consume a little extra protein — like a hard-boiled egg. It can make a big difference in your satiety level. Having a snack Most nutritionists recommend a mid-morning snack if it's going to be more than four hours between breakfast and lunch. But often, people misjudge the size of their snack and create another meal. Remember, a snack…