The best Long Term Diet Plans are going to be the ones people can actually stick to. The problem with diets is that they are unrealistic. Sure a diet might help you lose weight for a month or two, but as soon as you go to a party and eat cake it is blown. What happens on holidays? Are you supposed to eat nothing? These little bumps in the road are what throw off most dieters. A diet plan designed for the long term will be forgiving about those times when you just can not stick to the diet. It has to be. Long term includes holidays, birthdays and celebrations, which all include delicious food.